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Tropical Cyclone CHAMBO : JTWC Advisories
Season 2004-2005 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH]
---> Tropical Cyclone CHAMBO Track Map and Data

WTXS21 PGTW 20041223 01:30z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC//
SUBJ/TROPICAL CYCLONE FORMATION ALERT 230121ZDEC2004//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
125 NM EITHER SIDE OF A LINE FROM 8.0S8 87.7E2 TO 9.4S3 82.0E0
WITHIN THE NEXT 06 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY
ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME.
WINDS IN THE AREA ARE ESTIMATED TO BE 25 TO 30 KNOTS. METSAT IM-
AGERY AT 222330Z2 INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 8.2S0 87.3E8. THE SYSTEM IS MOVING WESTWARD AT 11 KNOTS.
2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 8.0S8
89.1E8 IS NOW LOCATED NEAR 8.2S0 87.3E8, APPROXIMATELY 615 NM WEST-
NORTHWEST OF THE COCOS ISLAND IN THE SOUTHEAST INDIAN OCEAN.
ANIMATED SATELLITE IMAGERY REVEALS INCREASED CONSOLIDATION OF THE
DEEP CONVECTION AROUND A WELL ORGANIZED LOW LEVEL CIRCULATION
CENTER. UPPER LEVEL ANALYSIS INDICATES AN ENVIRONMENT OF LOW
VERTICAL WIND SHEAR AND FAVORABLE DIVERGENCE. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS UPGRADED TO GOOD.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED
BY 240130Z0.//
=========================================================================
WTXS31 PGTW 20041223 21:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
REF/A/NAVPACMETOCCEN PEARL HARBOR HI/230121ZDEC2004//
AMPN/TROPICAL CYCLONE FORMATION ALERT//
RMKS/
1. TROPICAL CYCLONE 06S WARNING NR 001
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   231800Z4 --- NEAR 9.5S4 86.3E7
     MOVEMENT PAST SIX HOURS - 185 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 055 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   REPEAT POSIT: 9.5S4 86.3E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   240600Z2 --- 11.1S3 85.6E9
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   RADIUS OF 034 KT WINDS - 035 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 245 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   241800Z5 --- 12.1S4 83.6E7
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 255 DEG/ 11 KTS
    ---
   36 HRS, VALID AT:
   250600Z3 --- 12.6S9 81.5E4
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            060 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 255 DEG/ 09 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   251800Z6 --- 13.0S4 79.7E3
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 015 NM
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
    ---
REMARKS:
232100Z8 POSITION NEAR 9.9S8 86.1E5.
TROPICAL CYCLONE (TC) 06S, LOCATED APPROXIMATELY 650 NM WEST-
NORTHWEST OF COCOS ISLAND, HAS TRACKED SOUTHWARD AT 08 KNOTS OVER
THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 231730Z6 EN-
HANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED
ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 AND 35 KNOTS. ANI-
MATED MULTISPECTRAL SATELLITE IMAGERY REVEALS PULSING CONVECTION
OVER A CONSOLIDATING LOW LEVEL CIRCULATION CENTER (LLCC). TC 06S
IS FORECAST TO TRACK SOUTHWARD FOR THE NEXT 12 HOURS BEFORE TURN-
ING WESTWARD AND TRACK ALONG THE NORTHERN PERIPHERY OF A LOW
TO MID-LEVEL ANTICYCLONE ANCHORED TO THE SOUTHEAST OF THE SYSTEM.
THE SYSTEM IS FORECAST TO INTENSIFY SLOWLY IN A MODERATELY FAVOR-
ABLE ENVIRONMENT THROUGH THE FORECAST PERIOD. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 231800Z4 IS 10 FEET. THIS WARNING SUPERSEDES AND
CANCELS REF A, NAVPACMETOCCEN 230121Z9 DEC 04 TROPICAL CYCLONE
FORMATION ALERT (WTXS21 PGTW 230130) NEXT WARNINGS AT 240900Z5 AND
242100Z9.//
=========================================================================
WTXS31 PGTW 20041224 09:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S WARNING NR 002
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   240600Z2 --- NEAR 10.7S8 84.6E8
     MOVEMENT PAST SIX HOURS - 235 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT
                            065 NM SOUTHEAST QUADRANT
                            055 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   REPEAT POSIT: 10.7S8 84.6E8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   241800Z5 --- 11.3S5 82.6E6
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 245 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   250600Z3 --- 12.1S4 80.8E6
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 240 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   251800Z6 --- 13.0S4 79.2E8
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 010 NM NORTHEAST QUADRANT
   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 240 DEG/ 09 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   260600Z4 --- 13.9S3 77.6E0
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 010 NM
   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
    ---
REMARKS:
240900Z5 POSITION NEAR 10.9S0 84.1E3.
TROPICAL CYCLONE (TC) 06S, LOCATED APPROXIMATELY 750 NM EAST-
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 09 KNOTS
OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 240530Z4
MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED
ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 AND 45 KNOTS. ANI-
MATED MULTISPECTRAL SATELLITE IMAGERY REVEALS DEEP CONVECTION
BECOMING MORE ORGANIZED OVER THE LOW LEVEL CIRCULATION CENTER (LLCC).
TC 06S IS FORECAST TO TRACK SOUTHWESTWARD ALONG THE NORTHERN
PERIPHERY OF A LOW TO MID-LEVEL ANTICYCLONE ANCHORED TO THE SOUTH-
EAST OF THE SYSTEM. TC 06S WILL SLOWLY INTENSIFY IN A MODERATELY
FAVORABLE ENVIRONMENT OF LOW VERTICAL WIND SHEAR AND GOOD POLEWARD
OUTFLOW. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 240600Z2 IS 17 FEET.
NEXT WARNINGS AT 242100Z9 AND 250900Z6.//
=========================================================================
WTXS31 PGTW 20041224 21:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 003
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   241800Z5 --- NEAR 11.6S8 83.2E3
     MOVEMENT PAST SIX HOURS - 240 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 11.6S8 83.2E3
    ---
   FORECASTS:
   12 HRS, VALID AT:
   250600Z3 --- 12.6S9 81.4E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 230 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   251800Z6 --- 13.9S3 79.8E4
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 220 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   260600Z4 --- 15.3S9 78.6E1
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            085 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 215 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   261800Z7 --- 16.5S2 77.8E2
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 020 NM
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            085 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
    ---
REMARKS:
242100Z9 POSITION NEAR 11.9S1 82.8E8.
TROPICAL CYCLONE (TC) 06S, LOCATED APPROXIMATELY 690 NM EAST-
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED WEST-SOUTHWESTWARD AT
08 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED
ON 241730Z7 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING
INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES
OF 55 AND 65 KNOTS. TC 06S IS FORECAST TO TRACK SOUTHWESTWARD
ALONG THE NORTHWESTERN PERIPHERY OF A LOW TO MID-LEVEL ANTI-
CYCLONE ANCHORED TO THE SOUTHEAST OF THE SYSTEM. TC 06S IS
FORECAST TO INTENSIFY IN A FAVORABLE ENVIRONMENT THROUGH TAU 12,
AND WILL WEAKEN AFTER TAU 24 AS IT ENTERS AN AREA OFINCREASING
VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 241800Z5
IS 19 FEET. NEXT WARNINGS AT 250900Z6 AND 252100Z0.//
=========================================================================
WTXS31 PGTW 20041225 09:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 004
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   250600Z3 --- NEAR 12.9S2 81.9E8
     MOVEMENT PAST SIX HOURS - 225 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT
                            015 NM SOUTHEAST QUADRANT
                            015 NM SOUTHWEST QUADRANT
                            015 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 12.9S2 81.9E8
    ---
   FORECASTS:
   12 HRS, VALID AT:
   251800Z6 --- 14.2S7 80.5E3
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            065 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 230 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   260600Z4 --- 15.4S0 79.1E7
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            065 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 235 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   261800Z7 --- 16.2S9 78.0E5
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 064 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 240 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   270600Z5 --- 16.9S6 76.8E1
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 064 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
    ---
REMARKS:
250900Z6 POSITION NEAR 13.2S6 81.5E4.
TROPICAL CYCLONE (TC) 06S, LOCATED APPROXIMATELY 650 NM EAST-
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 08
KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED
ON 250530Z5 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING IN-
TENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF
77 KNOTS FROM ALL AGENCIES. RECENT ANIMATED ENHANCED WATER
VAPOR IMAGERY REVEALS STRONG POLEWARD OUTFLOW AND AN OVERALL
INCREASE IN DEEP CONVECTION AROUND THE LOW LEVEL CIRCULATION
CENTER. DURING THE NEXT 48 HOURS, TC 06S IS FORECAST TO TRACK
SOUTHWESTWARD AROUND THE NORTHWESTERN PERIPHERY OF THE MID-
LATITUDE STEERING RIDGE. A TRANSIENT MAJOR SHORTWAVE TROUGH
WILL SLIGHTLY WEAKEN THE RIDGE OVER THE NEXT 24 HOURS WHICH
WILL ALLOW THE SYSTEM TO TRACK MORE POLEWARD. HOWEVER, AFTER
TAU 36, THE RIDGE IS FORECAST TO REBUILD AND CAUSE TC 06S TO
TRACK MORE WESTWARD. THE INTENSITY OF TC 06S WILL REMAIN REL-
ATIVELY CONSTANT AS NO SIGNIFICANT INCREASE IN VERTICAL WIND
SHEAR IS FORECAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 250600Z3
IS 23 FEET. NEXT WARNINGS AT 252100Z0 AND 260900Z7.//
=========================================================================
WTXS31 PGTW 20041225 21:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 005
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   251800Z6 --- NEAR 14.4S9 80.6E4
     MOVEMENT PAST SIX HOURS - 225 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            095 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   REPEAT POSIT: 14.4S9 80.6E4
    ---
   FORECASTS:
   12 HRS, VALID AT:
   260600Z4 --- 15.9S5 79.4E0
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            095 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 210 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   261800Z7 --- 17.2S0 78.6E1
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 210 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   270600Z5 --- 18.4S3 77.8E2
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            045 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            085 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 225 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   271800Z8 --- 19.3S3 76.9E2
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
                            045 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
                            100 NM SOUTHEAST QUADRANT
                            105 NM SOUTHWEST QUADRANT
                            085 NM NORTHWEST QUADRANT
    ---
REMARKS:
252100Z0 POSITION NEAR 14.8S3 80.3E1.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY 640 NM
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 10 KNOTS
OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 251730Z8
ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED
ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 KNOTS FROM ALL
AGENCIES. ANIMATED SATELLITE IMAGERY CONTINUES TO SHOW STRONG
POLEWARD OUTFLOW. TC 06S IS FORECAST TO TRACK SOUTHWESTWARD AROUND
THE NORTHWESTERN PERIPHERY OF THE STEERING RIDGE ANCHORED TO THE
SOUTHEAST. A SLIGHT WESTWARD TURN IS FORECAST AFTER TAU 36 AS THE
RIDGE BUILDS WESTWARD FOLLOWING THE PASSAGE OF A MID-LATITUDE SHORT-
WAVE TROUGH. TC 06S IS FORECAST TO CONTINUE INTENSIFYING OVER THE
NEXT 12 HOURS IN A FAVORABLE ENVIRONMENT OF WEAK VERTICAL WIND SHEAR
AND STRONG POLEWARD OUTFLOW. A SLIGHT WEAKENING IS FORECAST AFTER TAU
24 AS THE OUTFLOW BEGINS TO DECREASE. MAXIMUM SIGNIFICANT WAVE HEIGHT
AT 251800Z6 IS 27 FEET. NEXT WARNINGS AT 260900Z7 AND 262100Z1.//
=========================================================================
WTXS31 PGTW 20041226 09:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 006
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   260600Z4 --- NEAR 15.5S1 79.9E5
     MOVEMENT PAST SIX HOURS - 205 DEGREES AT 04 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT
                            065 NM SOUTHEAST QUADRANT
                            090 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   REPEAT POSIT: 15.5S1 79.9E5
    ---
   FORECASTS:
   12 HRS, VALID AT:
   261800Z7 --- 16.7S4 79.4E0
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 205 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   270600Z5 --- 17.9S7 78.8E3
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 220 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   271800Z8 --- 19.1S1 77.8E2
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 215 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   280600Z6 --- 20.2S4 77.0E4
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
    ---
REMARKS:
260900Z7 POSITION NEAR 15.8S4 79.8E4.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY 655 NM
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTH-SOUTHWESTWARD AT 04
KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON
260530Z6 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS
BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 AND 102 KNOTS.
RECENT MICROWAVE IMAGERY SHOWS A RAGGED EYE, AND ANIMATED ENHANCED
WATER VAPOR IMAGERY REVEALS A STRONG POLEWARD OUTFLOW CHANNEL. DURING
THE NEXT 24 TO 36 HOURS, TC 06S IS FORECAST TO REMAIN ON A POLEWARD
TRACK AS A TRANSIENT MAJOR SHORTWAVE TROUGH WEAKENS THE STEERING
RIDGE. BY TAU 36, THE SYSTEM WILL BEGIN TO DRIFT MORE WESTWARD AS THE
RIDGE REGAINS STRENGTH. THE INTENSITY OF THE SYSTEM WILL REMAIN
STEADY AS FAVORABLE OUTFLOW IS ANTICIPATED THROUGH THE END OF THE
FORECAST PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 260600Z4 IS 30
FEET. NEXT WARNINGS AT 262100Z1 AND 270900Z8.//
=========================================================================
WTXS31 PGTW 20041226 21:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 007
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   261800Z7 --- NEAR 16.9S6 79.1E7
     MOVEMENT PAST SIX HOURS - 215 DEGREES AT 07 KTS
     POSITION ACCURATE TO WITHIN 020 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   REPEAT POSIT: 16.9S6 79.1E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   270600Z5 --- 18.0S9 78.3E8
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            025 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 225 DEG/ 07 KTS
    ---
   24 HRS, VALID AT:
   271800Z8 --- 19.0S0 77.3E7
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 230 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   280600Z6 --- 19.9S9 76.2E5
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 215 DEG/ 06 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   281800Z9 --- 20.8S0 75.5E7
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 035 NM
   RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            075 NM SOUTHWEST QUADRANT
                            065 NM NORTHWEST QUADRANT
    ---
REMARKS:
262100Z1 POSITION NEAR 17.2S0 078.9E4.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY 670 NM
SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 07
KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON
261730Z9 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY
IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 AND 102 KNOTS.
ANIMATED ENHANCED WATER VAPOR IMAGERY CONTINUES TO SHOW A STRONG
POLEWARD OUTFLOW CHANNEL. DURING THE FORECAST PERIOD, TC 06S IS
FORECAST TO REMAIN ON A POLEWARD TRACK AS A TRANSIENT MAJOR SHORTWAVE
TROUGH WEAKENS THE STEERING RIDGE. BY THE END OF THE FORECAST PERIOD,
THE SYSTEM WILL ENTER A WEAK STEERING ENVIRONMENT IN THE COL AREA
BETWEEN TWO RIDGES. THE INTENSITY OF THE SYSTEM WILL SLIGHTLY WEAKEN BY
THE END OF THE FORECAST PERIOD, AS SOME OF THE POLEWARD DIVERGENCE IS
EXPECTED TO SUBSIDE WITH THE PASSING OF THE MAJOR SHORTWAVE TROUGH.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 261800Z7 IS 33 FEET. NEXT WARNINGS
AT 270900Z8 AND 272100Z2.//
=========================================================================
WTXS31 PGTW 20041227 09:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 008
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   270600Z5 --- NEAR 17.9S7 78.5E0
     MOVEMENT PAST SIX HOURS - 215 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            045 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            090 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   REPEAT POSIT: 17.9S7 78.5E0
    ---
   FORECASTS:
   12 HRS, VALID AT:
   271800Z8 --- 19.1S1 77.5E9
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 225 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   280600Z6 --- 20.4S6 76.2E5
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            085 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 225 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   281800Z9 --- 21.5S8 75.0E2
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 215 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   290600Z7 --- 22.6S0 74.2E3
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
    ---
REMARKS:
270900Z8 POSITION NEAR 18.2S1 78.2E7.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY 725 NM
SOUTH-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 06
KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON
262330Z6 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS
BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 90 AND 102 KNOTS.
RECENT ANIMATED ENHANCED WATER VAPOR IMAGERY REVEALS CONTINUED POLE-
WARD OUTFLOW, HOWEVER DEEP CONVECTION AROUND THE EYE HAS BECOME
WEAKER. DURING THE NEXT 48 HOURS, TC 06S WILL REMAIN ON A GENERAL
SOUTHWEST TRACK AS IT CONTINUES TO MOVE POLEWARD. AFTER TAU 48, THE
SYSTEM IS EXPECTED TO DRIFT WESTWARD AND TRACK INTO A SLIGHTLY
WEAKER STEERING ENVIRONMENT. THE INTENSITY WILL SLOWLY DECREASE DUE
TO INCREASED VERTICAL WIND SHEAR FROM THE MIDLATITUDE WESTERLIES.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 270600Z5 IS 33 FEET. NEXT
WARNINGS AT 272100Z2 AND 280900Z9.//
=========================================================================
WTXS31 PGTW 20041227 21:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 009
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   271800Z8 --- NEAR 19.1S1 77.7E1
     MOVEMENT PAST SIX HOURS - 200 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT
                            060 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   REPEAT POSIT: 19.1S1 77.7E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   280600Z6 --- 20.2S4 76.2E5
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            025 NM SOUTHEAST QUADRANT
                            025 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 225 DEG/ 09 KTS
    ---
   24 HRS, VALID AT:
   281800Z9 --- 21.4S7 74.8E9
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 064 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            035 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT
                            085 NM SOUTHEAST QUADRANT
                            085 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 220 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   290600Z7 --- 22.6S0 73.8E8
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 064 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 205 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   291800Z0 --- 24.1S7 73.1E1
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            035 NM SOUTHEAST QUADRANT
                            035 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            075 NM NORTHWEST QUADRANT
    ---
REMARKS:
272100Z2 POSITION NEAR 19.4S4 77.3E7.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY 770 NM
SOUTH-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTH-SOUTHWESTWARD AT
08 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON
271730Z0 ENHANCED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED
ON SATELLITE CURRENT INTENSITY ESTIMATES OF 77 AND 90 KNOTS. RECENT
ANIMATED ENHANCED WATER VAPOR IMAGERY REVEALS CONTINUED STRONG POLE-
WARD OUTFLOW, HOWEVER THE DEEP CONVECTION IS BEING SHEARED AS THE
SYSTEM HAS TRACKED INTO AN ENVIRONMENT OF HIGHER VERTICAL WIND SHEAR
CAUSING THE INTENSITY TO BEGIN TO DECREASE. TC 06S WILL CONTINUE TO
TRACK SOUTHWESTWARD ALONG THE NORTHWESTERN PERIPHERY OF THE MID-LEVEL
STEERING RIDGE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 271800Z8 IS 35
FEET. NEXT WARNINGS AT 280900Z9 AND 282100Z3.//
=========================================================================
WTXS31 PGTW 20041228 09:00z
MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE WARNING//
RMKS/
1. TROPICAL CYCLONE 06S (CHAMBO) WARNING NR 010
   01 ACTIVE TROPICAL CYCLONE IN SOUTHIO
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   280600Z6 --- NEAR 19.3S3 75.3E5
     MOVEMENT PAST SIX HOURS - 255 DEGREES AT 11 KTS
     POSITION ACCURATE TO WITHIN 040 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   REPEAT POSIT: 19.3S3 75.3E5
    ---
   FORECASTS:
   12 HRS, VALID AT:
   281800Z9 --- 20.0S2 73.0E0
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
    ---
REMARKS:
280900Z9 POSITION NEAR 19.5S5 74.7E8.
TROPICAL CYCLONE (TC) 06S (CHAMBO), LOCATED APPROXIMATELY
735 NM SOUTH-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED WEST-
SOUTHWESTWARD AT 11 KNOTS OVER THE PAST 06 HOURS. THE
WARNING POSITION IS BASED ON 280530Z8 MULTISPECTRAL SATEL-
LITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE
FINAL-T SHEAR ESTIMATES OF 30, 35 AND 45 KNOTS AND QUICKSCAT
DATA SHOWING 35 TO 40 KNOT WINDS ASSOCIATED WITH THE CIR-
CULATION CENTER. CURRENT INTENSITY ESTIMATES REMAIN AT 45
AND 55 KNOTS BY CONSTRAINTS. RECENT MICROWAVE AND ANIMATED
VISIBLE IMAGERY REVEAL THE FULLY EXPOSED LOW LEVEL CIR-
CULATION CENTER DISPLACED OVER 85 NM NORTHEAST OF THE
REMAINING DEEP CONVECTION. TC 06S WILL CONTINUE TO TRACK
SOUTHWESTWARD ALONG THE PERIPHERY OF THE LOW TO MID LEVEL
RIDGE AND SHOULD DISSIPATE WITHIN 12 HOURS OVER COOLER
WATER IN A HIGH VERTICAL WIND SHEAR ENVIRONMENT MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 280600Z6 IS 12 FEET. THIS IS
THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON
WARNING CENTER (NAVPACMETOCCEN). THE SYSTEM WILL BE CLOSELY
MONITORED FOR SIGNS OF REGENERATION.//

Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.


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Document: tropical_cyclone_chambo_jtwc_advisories.htm Updated: 2 May 2017