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Tropical Cyclone GWENDA : JTWC Advisories
Season 1998-1999 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH]
---> Tropical Cyclone GWENDA Track Map and Data

WTXS21 PGTW 990404 06:30z
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
180 NM EITHER SIDE OF A LINE FROM 11.8S0 124.3E0 TO 13.5S9
116.3E1 WITHIN THE NEXT 12 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 20 TO 25 KNOTS.
METSAT IMAGERY AT 040530Z2 INDICATES THAT A CIRCULATION CENTER IS
LOCATED NEAR 11.9S1 123.3E9.  THE SYSTEM IS MOVING WEST-
SOUTHWESTWARD AT 16 KNOTS.
2. REMARKS: THE AREA OF CONVECTION HAS CONTINUED TO ORGANIZE DURING
THE PAST 12 HOURS. CYCLONIC ROTATION OF THE AREA IS EVIDENT IN
ANIMATED SATELLITE IMAGERY. PREVIOUS SYNOPTIC DATA HAS ALSO
SUGGESTED A LOW-LEVEL CIRCULATION CENTER (LLCC) ASSOCIATED WITH THE
CONVECTION. THE AREA IS WITHIN A REGION OF WEAK TO MODERATE VERTICAL
SHEAR AND DIRECTLY BENEATH THE AXIS OF THE 200MB RIDGE. THIS HAS
PROVIDED IMPROVED OUTFLOW ALOFT ALLOWING FOR FURTHER DEVELOPMENT.
MINIMUM SEA LEVEL PRESSURE IS IS ESTIMATED AT 1001 MB. THE POTENTIAL
FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE
NEXT 24 HOURS IS NOW UPGRADED TO GOOD.
3. THIS ALERT VALID UNTIL 050630Z4.//
=========================================================================
WTXS32 PGTW 990405 03:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S WARNING NR 001
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   050000Z5 --- NEAR 12.2S5 120.8E1
     MOVEMENT PAST SIX HOURS - 255 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT
   REPEAT POSIT: 12.2S5 120.8E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   051200Z8 --- 12.7S0 119.2E3
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   VECTOR TO 24 HR POSIT: 245 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   060000Z6 --- 13.4S8 117.8E7
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   RADIUS OF 035 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE
                            040 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 235 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   061200Z9 --- 14.3S8 116.4E2
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   RADIUS OF 035 KT WINDS - 060 NM SOUTHEAST SEMICIRCLE
                            050 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 235 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   070000Z7 --- 15.2S8 115.1E8
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   RADIUS OF 050 KT WINDS - 020 NM
   RADIUS OF 035 KT WINDS - 070 NM SOUTHEAST SEMICIRCLE
                            060 NM ELSEWHERE
    ---
REMARKS:
050300Z8 POSITION NEAR 12.3S6  120.4E7.
TROPICAL CYCLONE 32S HAS DEVELOPED NORTHWEST OF AUSTRALIA AND HAS
TRACKED TOWARDS THE WEST-SOUTHWEST AT 8 KNOTS DURING THE PAST 6
HOURS. THE WARNING POSITION IS BASED ON 042330Z2 SATELLITE IMAGERY
AND A PREVIOUS TRMM IMAGE. THE WARNING INTENSITY IS BASED ON
SATELLITE CURRENT INTENSITY ESTIMATES OF T2.0 (30 KNOTS). TC 32S HAS
BEEN STEERED BY THE SUBTROPICAL RIDGE TO THE SOUTH. THIS RIDGE IS
FORECAST TO REMAIN THE DOMINANT STEERING INFLUENCE AS THE SYSTEM
CONTINUES ON A WEST-SOUTHWESTWARD TRACK THROUGHOUT THE FORECAST
PERIOD. AN APPROACHING MID LATTITUDE TROUGH CURRENTLY WEST OF THE
SYSTEM MAY BEGIN TO FORCE A MORE SOUTHWESTWARD TRACK NEAR THE 48
HOUR FORECAST POSITION. CONDITIONS CONTINUE TO REMAIN FAVORABLE FOR
FURTHER DEVELOPMENT OF TC 32S. WEAK TO MODERATE VERTICAL SHEAR
AND GOOD OUTFLOW ALOFT SUPPORTED BY THE 200 MB RIDGE AXIS WILL ALLOW
THE SYSTEM TO INTENSIFY NEAR CLIMATOLOGICALLY DURING THE ENTIRE
FORECAST PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050000Z5 IS 12
FEET. THIS WARNING SUPERSEDES AND CANCELS NAVPACMETOCCEN 040621Z APR
99 TROPICAL CYCLONE FORMATION ALERT (WTXS22 PGTW 040630 ) NEXT
WARNINGS AT 051500Z1 (DTG 051351Z5) AND 060300Z9 (DTG 060151Z3).
REFER TO TROPICAL CYCLONE  31S (FREDERIC-EVRINA) WARNINGS (WTXS31
PGTW) FOR TWELVE-HOURLY UPDATES.//
=========================================================================
WTXS32 PGTW 990405 15:00z
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 002
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   051200Z8 --- NEAR 13.1S5 118.5E5
     MOVEMENT PAST SIX HOURS - 245 DEGREES AT 11 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 035 KT WINDS - 075 NM SOUTHEAST SEMICIRCLE
                            065 NM ELSEWHERE
   REPEAT POSIT: 13.1S5 118.5E5
    ---
   FORECASTS:
   12 HRS, VALID AT:
   060000Z6 --- 14.2S7 116.5E3
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 035 KT WINDS - 100 NM SOUTHEAST SEMICIRCLE
                            085 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 235 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   061200Z9 --- 15.4S0 114.7E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 035 NM SOUTHEAST SEMICIRCLE
                            025 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 120 NM SOUTHEAST SEMICIRCLE
                            105 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 225 DEG/ 10 KTS
    ---
   36 HRS, VALID AT:
   070000Z7 --- 16.8S5 113.1E6
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM SOUTHEAST SEMICIRCLE
                            115 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 220 DEG/ 09 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   071200Z0 --- 18.1S0 111.9E2
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   RADIUS OF 050 KT WINDS - 045 NM SOUTHEAST SEMICIRCLE
                            035 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 150 NM SOUTHEAST SEMICIRCLE
                            125 NM ELSEWHERE
    ---
REMARKS:
051500Z1 POSITION NEAR 13.4S8  118.0E0.
TROPICAL CYCLONE 32S (GWENDA) HAS TRACKED TOWARDS THE WEST-SOUTHWEST
AT 11 KNOTS. THE WARNING POSITION IS BASED ON 051130Z0 SATELLITE
IMAGERY. THE WARNING INTENSITY IS BASED ON A SATELLITE CURRENT
INTENSITY ESTIMATE OF T3.0 (45 KNOTS). TC 32S HAS TRACKED UNDER THE
STEERING INFLUENCE OF THE SUBTROPICAL RIDGE TO THE SOUTH-SOUTHEAST.
THIS IS FORECAST TO CONTINUE STEERING THE SYSTEM IN GENERALLY THE
SAME DIRECTION DURING THE INITIAL 24 HOURS. AN APPROACHING MID-
LATTITUDE TROUGH IS EXPECTED TO BEGIN TURNING TC 32S (GWENDA) MORE
TOWARDS THE SOUTH AFTER THIS PERIOD AND THROUGHOUT THE REMAINDER OF
THE FORECAST. TC 32S HAS RAPIDLY INTENSIFIED AND CONSOLIDATED
OVER THE PAST 12 HOURS. CONTINUED INTENSIFICATION IS FORECAST DURING
THE NEXT 24 TO 36 HOURS. INCREASED VERTICAL SHEAR ASSOCIATED WITH
THE APPROACHING TROUGH IS EXPECTED TO BEGIN INHIBITING FURTHER
DEVELOPMENT AFTER THIS PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
051200Z8 IS 16 FEET. NEXT WARNINGS AT 060300Z9 (DTG 060153Z5) AND
061500Z2 (DTG 061353Z8). REFER TO TROPICAL CYCLONE 31S (FREDERIC-
EVRINA) WARNINGS (WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES.//
=========================================================================
WTXS32 PGTW 990406 03:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 003
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   060000Z6 --- NEAR 14.6S1 117.2E1
     MOVEMENT PAST SIX HOURS - 225 DEGREES AT 10 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 025 NM
   RADIUS OF 035 KT WINDS - 130 NM SOUTHEAST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: NEAR 14.6S1 117.2E1
    ---
   FORECASTS:
   12 HRS, VALID AT:
   061200Z9 --- 16.0S7 115.8E5
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 220 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   070000Z7 --- 17.5S3 114.4E0
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 220 DEG/ 10 KTS
    ---
   36 HRS, VALID AT:
   071200Z0 --- 19.1S1 113.0E5
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM SOUTHEAST SEMICIRCLE
                            145 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 215 DEG/ 10 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   080000Z8 --- 20.7S9 111.8E1
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   RADIUS OF 100 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 050 NM SOUTHEAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM SOUTHEAST SEMICIRCLE
                                   OVER WATER
                            145 NM ELSEWHERE
    ---
REMARKS:
060300Z9 POSITION NEAR 14.9S4 116.9E7.
TROPICAL CYCLONE 32S (GWENDA) HAS TRACKED SOUTHWESTWARD NORTHWEST OF
AUSTRALIA AT 10 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION
AND INTENSITY ARE BASED UPON 052330Z3 ANIMATED VISIBLE SATELLITE
IMAGERY WITH CURRENT INTENSITY ESTIMATES OF 65 AND 75 KNOTS.
SATELLITE IMAGERY INDICATES TC 32S CONTINUES TO INTENSIFY RAPIDLY AS
IT TRACKS UNDER THE STEERING INFLUENCE OF THE SUBTROPICAL RIDGE TO
THE SOUTHEAST. TROPICAL CYCLONE 32S IS FORECAST TO TRACK
SOUTHWESTWARD THROUGHOUT THE FORECAST PERIOD AS THE AFOREMENTIONED
RIDGE IS WEAKENED BY AN APPROACHING MID-LATITUDE TROUGH. ALTHOUGH TC
32S IS FORECAST TO INTENSIFY OVER THE NEXT 24 HOURS AT THE NORMAL
RATE, INCREASED VERTICAL SHEAR ASSOCIATED WITH THE APPROACHING
TROUGH IS EXPECTED TO BEGIN INHIBITING FURTHER DEVELOPMENT OF TC 32S.
INDEED, A LOW PROBABILITY FORECAST SCENARIO EXISTS IN WHICH TC 32S
UNDERGOES SIGNIFICANT VERTICAL WIND SHEAR AFTER 36 HOURS AND BEGINS
TO WEAKEN. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 060000Z6 IS 18 FEET.
THE JOINT TYPHOON WARNING CENTER IS SWITCHING TO SIX-HOURLY WARNINGS
ON THIS SYSTEM UNTIL FURTHER NOTICE. NEXT WARNINGS AT 060900Z5
(DTG 060753Z1), 061500Z2 (DTG 061353Z8), 062100Z9 (DTG 061953Z4) AND
070300Z0 (DTG 070153Z6). REFER TO TROPICAL CYCLONE 31S (FREDERIC)
WARNINGS (WTXS31 PGTW) FOR TWELVE-HOURLYUPDATES.//
=========================================================================
WTXS32 PGTW 990406 09:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 004
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   060600Z2 --- NEAR 15.4S0 116.9E7
     MOVEMENT PAST SIX HOURS - 200 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   RADIUS OF 050 KT WINDS - 030 NM
   RADIUS OF 035 KT WINDS - 130 NM SOUTHEAST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: 15.4S0 116.9E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   061800Z5 --- 16.6S3 116.0E8
   MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
   RADIUS OF 100 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 150 NM SOUTHEAST SEMICIRCLE
                            130 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 205 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   070600Z3 --- 18.0S9 115.3E0
   MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
   RADIUS OF 100 KT WINDS - 015 NM
   RADIUS OF 050 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM SOUTHEAST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 205 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   071800Z6 --- 19.3S3 114.7E3
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 170 NM EAST SEMICIRCLE
                                   OVER WATER
                            150 NM ELSEWHERE
   VECTOR TO 48 HR POSIT: 190 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   080600Z4 --- 20.7S9 114.5E1
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 180 NM EAST SEMICIRCLE
                                   OVER WATER
                            160 NM ELSEWHERE OVER WATER
   VECTOR TO 72 HR POSIT: 170 DEG/ 08 KTS
    ---
   72 HRS, VALID AT:
   090600Z5 --- 23.9S4 115.0E7
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 040 NM EAST SEMICIRCLE
                                   OVER WATER
                            030 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                                   OVER WATER
                            115 NM ELSEWHERE OVER WATER
    ---
REMARKS:
060900Z5 POSITION NEAR 15.7S3  116.7E5. TROPICAL CYCLONE 32S
(GWENDA) HAS TRACKED SOUTHWARD NORTHWEST OF AUSTRALIA AT 10 KNOTS
OVER THE PAST 06 HOURS. THE WARNING POSITION AND INTENSITY ARE BASED
UPON 065330Z7 ANIMATED VISIBLE SATELLITE IMAGERY WITH CURRENT
INTENSITY ESTIMATES OF 90 KNOTS. SATELLITE IMAGERY INDICATES TC 32S
CONTINUES TO INTENSIFY RAPIDLY AS IT TRACKS UNDER THE STEERING
INFLUENCE OF THE SUBTROPICAL RIDGE TO THE SOUTHEAST. TROPICAL
CYCLONE 32S IS FORECAST TO TRACK SOUTHWESTWARD THEN MORE SOUTHERLY
THROUGHOUT THE FORECAST PERIOD AS THE AFOREMENTIONED RIDGE IS
WEAKENED BY AN APPROACHING MID-LATITUDE TROUGH. TC 32S IS FORECAST
TO INTENSIFY RAPIDLY OVER THE NEXT 48 HOURS, WHEN INCREASING
VERTICAL WIND SHEAR ASSOCIATED WITH THE APPROACHING TROUGH IS
EXPECTED TO INHIBIT FURTHER DEVELOPMENT, THEN WEAKEN IT RAPIDLY.
LANDFALL TO THE EAST OF EXMOUTH GULF IS EXPECTED WITHIN 60 HOURS
AND WILL CONTRIBUTE TO THE DISSIPATION OF THE SYSTEM. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 060600Z2 IS 17 FEET. NEXT WARNINGS AT
061500Z2 (DTG 061353Z8), 062100Z9 (DTG 061953Z4), 070300Z0
(DTG 070153Z6) AND 070900Z6 (DTG 070753Z2). REFER TO TROPICAL
CYCLONE 31S (FREDERIC) WARNINGS (WTXS31 PGTW) FOR TWELVE-HOURLY
UPDATES.//
=========================================================================
WTXS32 PGTW 990406 15:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 005
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   061200Z9 --- NEAR 16.2S9 116.6E4
     MOVEMENT PAST SIX HOURS - 200 DEGREES AT 09 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: 16.2S9 116.6E4
    ---
   FORECASTS:
   12 HRS, VALID AT:
   070000Z7 --- 18.1S0 116.0E8
   MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
   RADIUS OF 100 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM EAST SEMICIRCLE
                            120 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 195 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   071200Z0 --- 20.0S2 115.5E2
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 36 HR POSIT: 180 DEG/ 09 KTS
    ---
   36 HRS, VALID AT:
   080000Z8 --- 21.8S1 115.5E2
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 100 KT WINDS - 030 NM OVER WATER
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            040 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 180 DEG/ 10 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   081200Z1 --- 23.7S2 115.6E3
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 015 NM EAST SEMICIRCLE
                                   OVER WATER
                            010 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 080 NM EAST SEMICIRCLE
                                   OVER WATER
                            065 NM ELSEWHERE OVER WATER
   VECTOR TO 72 HR POSIT: 150 DEG/ 11 KTS
    ---
   72 HRS, VALID AT:
   091200Z2 --- 27.3S2 118.0E0
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
061500Z2 POSITION NEAR 16.7S4  116.5E3. TROPICAL CYCLONE 32S
(GWENDA) HAS TRACKED SOUTHWARD NORTHWEST OF AUSTRALIA AT 10 KNOTS
OVER THE PAST 06 HOURS. THE WARNING POSITION AND INTENSITY ARE BASED
UPON 061130Z1 ANIMATED VISIBLE SATELLITE IMAGERY WITH CURRENT
INTENSITY ESTIMATES OF 115 KNOTS. SATELLITE IMAGERY INDICATES TC
32S CONTINUES TO INTENSIFY RAPIDLY AS IT TRACKS UNDER THE STEERING
INFLUENCE OF THE SUBTROPICAL RIDGE TO THE EAST-SOUTHEAST. TROPICAL
CYCLONE 32S IS FORECAST TO TRACK SOUTHWESTWARD THROUGHOUT THE
FORECAST PERIOD AS THE AFOREMENTIONED RIDGE IS WEAKENED BY AN
APPROACHING MID-LATITUDE TROUGH. TC 32S IS FORECAST TO INTENSIFY
RAPIDLY OVER THE NEXT 36 HOURS, WHEN INCREASING VERTICAL SHEAR
ASSOCIATED WITH THE APPROACHING TROUGH IS EXPECTED TO INHIBIT
FURTHER DEVELOPMENT, THEN WEAKEN GWENDA RAPIDLY. LANDFALL OVER
ONSLOW IS EXPECTED WITHIN 48 HOURS AND WILL ENHANCE THE WEAKENING
EFFECTS OF THE VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE
HEIGHT AT  061200Z9 IS 28 FEET. NEXT WARNINGS AT 0622100Z1 (DTG
061953Z4), 070300Z0 (DTG 070153Z6), 070900Z6 (DTG 070753Z2), AND
071500Z3 (DTG 071353Z9). REFER TO TROPICAL CYCLONE  31S (FREDERIC)
WARNINGS (WTXS31 PGTW) FOR TWELVE-HOURLY UPDATES.//
=========================================================================
WTXS32 PGTW 990406 21:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 006
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   061800Z5 --- NEAR 16.8S5 116.6E4
     MOVEMENT PAST SIX HOURS - 180 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON EYE FIXED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 125 KT, GUSTS 150 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 130 NM WEST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: NEAR 16.8S5 116.6E4
    ---
   FORECASTS:
   12 HRS, VALID AT:
   070600Z3 --- 18.0S9 116.3E1
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM WEST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM WEST SEMICIRCLE
                            120 NM ELSEWHERE
   VECTOR TO 24 HR POSIT: 190 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   071800Z6 --- 19.2S2 116.1E9
   MAX SUSTAINED WINDS - 140 KT, GUSTS 170 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 050 NM WEST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM WEST SEMICIRCLE
                            140 NM ELSEWHERE
   VECTOR TO 36 HR POSIT: 180 DEG/ 07 KTS
    ---
   36 HRS, VALID AT:
   080600Z4 --- 20.6S8 116.0E8
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 030 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 180 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   081800Z7 --- 22.1S5 116.0E8
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 015 NM EAST SEMICIRCLE
                            010 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 080 NM EAST SEMICIRCLE
                                   OVER WATER
                            065 NM ELSEWHERE OVER WATER
   VECTOR TO 72 HR POSIT: 160 DEG/ 11 KTS
    ---
   72 HRS, VALID AT:
   091800Z8 --- 26.3S1 117.5E4
   MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
062100Z9 POSITION NEAR 17.1S9  116.5E3.
TROPICAL CYCLONE (TC) 32S (GWENDA) HAS TRACKED SOUTHWARD OFF THE
NORTHWEST COAST OF AUSTRALIA AT 06 KNOTS OVER THE PAST 06 HOURS. THE
WARNING POSITION AND INTENSITY ARE BASED UPON 061730Z7 ANIMATED
INFRARED SATELLITE IMAGERY WITH CURRENT INTENSITY ESTIMATES OF 125
AND 140 KNOTS. SATELLITE IMAGERY INDICATES TC 32S CONTINUES TO
INTENSIFY AND HAS A 16 NM DIAMETER EYE, BUT SOME DEEP CONVECTION IS
NOW BEING DRAWN TO THE SOUTHEAST AS THE VERTICAL WIND SHEAR BEGINS
TO INCREASE. THE TRACK PHILOSOPHY REMAINS UNCHANGED AS TROPICAL
CYCLONE 32S CONTINUES TO BE STEERED BY THE AFOREMENTIONED SUBTROPICAL
RIDGE, BUT THE FORECAST TRACK IS SLIGHTLY EAST OF THE PREVIOUS
FORECAST DUE TO THE RECENT SOUTHWARD JOG IN THE TRACK. UW-CIMSS SHEAR
CHARTS INDICATE THE VERTICAL WIND SHEAR IS INCREASING OVER TC 32S,
WHICH WOULD INHIBIT FURTHER DEVELOPMENT. HENCE, TC 32S IS FORECAST
TO INTENSIFY OVER THE NEXT 12 HOURS AND THEN REMAIN AT THAT INTENSITY
BY THE 48 HOUR FORECAST POSITION. THE WIND RADII HAVE BEEN REVERSED
FOR THE FIRST THREE WARNING POSITIONS DUE TO SATELLITE ANALYSIS OF
THE CLOUD SHIELD WHICH SHOWS MORE DEEP CONVECTION WEST OF THE SYSTEM.
VE HEIGHT AT 061800Z5 IS 25 FEET. NEXT WARNINGS AT 070300Z0
(DTG 070153Z6), 070900Z6 (DTG 070753Z2), 071500Z3 (DTG 071353Z9) AND
072100Z0 (DTG 071953Z5). REFER TO TROPICAL CYCLONE  31S
(FREDERIC-EVRINA) WARNINGS (WTXS31 PGTW)FOR TWELVE-HOURLY
UPDATES.//
=========================================================================
WTXS32 PGTW 990407 03:00z
SUBJ: TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 007
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   070000Z7 --- NEAR 17.4S2 116.8E6
     MOVEMENT PAST SIX HOURS - 160 DEGREES AT 06 KTS
     POSITION ACCURATE TO WITHIN 045 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 130 KT, GUSTS 160 KT
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                            115 NM ELSEWHERE
   REPEAT POSIT: 17.4S2 116.8E6
    ---
   FORECASTS:
   12 HRS, VALID AT:
   071200Z0 --- 18.5S4 116.8E6
   MAX SUSTAINED WINDS - 120 KT, GUSTS 145 KT
   RADIUS OF 100 KT WINDS - 025 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 140 NM EAST SEMICIRCLE
                            120 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 180 DEG/ 06 KTS
    ---
   24 HRS, VALID AT:
   080000Z8 --- 19.8S8 116.8E6
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 155 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 36 HR POSIT: 175 DEG/ 08 KTS
    ---
   36 HRS, VALID AT:
   081200Z1 --- 21.3S6 117.0E9
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                                   OVER WATER
                            040 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 160 NM EAST SEMICIRCLE
                                   OVER WATER
                            140 NM ELSEWHERE OVER WATER
   VECTOR TO 48 HR POSIT: 165 DEG/ 08 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   090000Z9 --- 22.9S3 117.4E3
   MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 035 KT WINDS - 080 NM EAST SEMICIRCLE
                                   OVER WATER
                            065 NM ELSEWHERE OVER WATER
    ---
REMARKS:
070300Z0 POSITION NEAR 17.7S5 116.8E6.
TROPICAL CYCLONE (TC) 32S (GWENDA) HAS TRACKED SOUTH-SOUTHEASTWARD
OFF THE NORTHWEST COAST OF AUSTRALIA AT 06 KNOTS OVER THE PAST 06
HOURS. THE WARNING POSITION AND INTENSITY ARE BASED UPON 062330Z4
ANIMATED VISIBLE AND INFRARED SATELLITE IMAGERY WITH CURRENT
INTENSITY ESTIMATES OF 125 AND 140 KNOTS. SATELLITE IMAGERY INDICATES
THE VERTICAL WIND SHEAR CONTINUES TO INCREASE AND TC 32S IS BEGINNING
TO ELONGATE AS THE EYE FEATURE BECOMES LESS WELL DEFINED. TROPICAL
CYCLONE 32S HAS MOVED SOUTH OF THE 200 MB RIDGE AXIS AND MUCH OF THE
DEEP CONVECTION IS NOW DRAWING OFF TO THE SOUTHEAST. HENCE, TC 32S
HAS PROBABLY PEAKED IN INTENSITY AND IS FORECAST TO BEGIN TO WEAKEN
AS IT CONTINUES SOUTHWARD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT
070000Z7 IS 25 FEET. NEXT WARNINGS AT 070900Z6 (DTG 070753Z2),
071500Z3 (DTG 071353Z9), 072100Z0 (DTG 071953Z5) AND 080300Z1
(DTG 080153Z7). REFER TO TROPICAL CYCLONE 31S (FREDERIC-EVRINA)
WARNINGS (WTXS31 PGTW) FOR THE FINAL WARNING OF THIS SYSTEM.//
=========================================================================
WTXS32 PGTW 990407 09:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 008
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   070600Z3 --- NEAR 18.6S5 117.4E3
     MOVEMENT PAST SIX HOURS - 155 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 100 KT WINDS - 020 NM
   RADIUS OF 050 KT WINDS - 050 NM EAST SEMICIRCLE
                            040 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 130 NM EAST SEMICIRCLE
                                   OVER WATER
                            100 NM ELSEWHERE
   REPEAT POSIT: 18.6S5 117.4E3
    ---
   FORECASTS:
   12 HRS, VALID AT:
   071800Z6 --- 20.4S6 118.1E1
   MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 040 NM EAST SEMICIRCLE
                                   OVER WATER
                            030 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 110 NM EAST SEMICIRCLE
                                   OVER WATER
                            085 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 150 DEG/ 10 KTS
    ---
   24 HRS, VALID AT:
   080600Z4 --- 22.1S5 119.1E2
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 025 NM OVER WATER
                            025 NM ELSEWHERE OVER WATER
   RADIUS OF 035 KT WINDS - 095 NM EAST SEMICIRCLE
                                   OVER WATER
                            060 NM ELSEWHERE OVER WATER
    ---
REMARKS:
070900Z6 POSITION NEAR 19.0S0 117.6E5. TROPICAL CYCLONE (TC) 32S
(GWENDA) HAS TRACKED SOUTH-SOUTHEASTWARD OFF THE NORTHWEST COAST OF
AUSTRALIA AT 13 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION
AND INTENSITY ARE BASED UPON 070530Z5 ANIMATED VISIBLE AND INFRARED
SATELLITE IMAGERY WITH INTENSITY ESTIMATES OF 90 AND 115 KNOTS.
SATELLITE IMAGERY INDICATES THE VERTICAL WIND SHEAR CONTINUES TO
WEAKEN THE SYSTEM AS IT MOVES CLOSER TO SHORE. MOST OF THE
CONVECTION IS BEING ADVECTED OFF TO THE SOUTHEAST. THE STRONG
VERTICAL WIND SHEAR AND LAND FALL IN THE NEXT 12 HOURS WILL WEAKEN
GWENDA RAPIDLY THROUGH THE FORECAST PERIOD. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 070600Z3 IS 25 FEET. NEXT WARNINGS AT 071500Z3
(DTG 071353Z9), 072100Z0 (DTG 071953Z5) AND 080300Z1 (DTG 080153Z7).
REFER TO TROPICAL CYCLONE 31S (FREDERIC-EVRINA) WARNING (WTXS31
PGTW) FOR FINAL UPDATE.//
=========================================================================
WTXS32 PGTW 990407 15:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 009
   02 ACTIVE TROPICAL CYCLONES IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   071200Z0 --- NEAR 19.6S6 118.2E2
     MOVEMENT PAST SIX HOURS - 145 DEGREES AT 13 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER
   RADIUS OF 050 KT WINDS - 040 NM EAST SEMICIRCLE
                            030 NM ELSEWHERE
   RADIUS OF 035 KT WINDS - 115 NM EAST SEMICIRCLE
                                   OVER WATER
                            090 NM ELSEWHERE OVER WATER
   REPEAT POSIT: 19.6S6 118.2E2
    ---
   FORECASTS:
   12 HRS, VALID AT:
   080000Z8 --- 21.2S5 119.3E4
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 050 KT WINDS - 025 NM OVER WATER
   RADIUS OF 035 KT WINDS - 070 NM EAST SEMICIRCLE
                                   OVER WATER
                            055 NM ELSEWHERE OVER WATER
   VECTOR TO 24 HR POSIT: 160 DEG/ 11 KTS
    ---
   24 HRS, VALID AT:
   081200Z1 --- 23.3S8 120.1E4
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 035 KT WINDS - 060 NM EAST SEMICIRCLE
                                   OVER WATER
                            045 NM ELSEWHERE OVER WATER
    ---
REMARKS:
071500Z3 POSITION NEAR 20.0S2  118.5E5.
TROPICAL CYCLONE (TC) 32S (GWENDA) HAS TRACKED SOUTHWESTWARD OFF THE
NORTHWEST COAST OF AUSTRALIA AT 13 KNOTS OVER THE PAST 06 HOURS. THE
WARNING POSITION AND INTENSITY ARE BASED UPON 071130Z2 ANIMATED
INFRARED SATELLITE IMAGERY WITH INTENSITY ESTIMATES OF 90 AND 115
KNOTS. SATELLITE IMAGERY INDICATES THE SYSTEM IS WEAKENING AS IT
BEGINS TO MAKE LANDFALL. STRONG VERTICAL WIND SHEAR AND LANDFALL
SHOULD DISSIPATE THE SYSTEM OVER WESTERN AUSTRALIA IN THE NEXT 12 TO
24 HOURS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 071200Z0 IS 22 FEET.
NEXT WARNINGS AT 072100Z0 (DTG 071953Z5), 080300Z1 (DTG 080153Z7),
AND 080900Z7 (DTG 080753Z3). REFER TO TROPICAL CYCLONE 31S
(FREDERIC-EVRINA) WARNING (WTXS31 PGTW) FOR FINAL UPDATE.//
=========================================================================
WTXS32 PGTW 990407 21:00z
SUBJ:  TROPICAL CYCLONE WARNING
1. TROPICAL CYCLONE 32S (GWENDA) WARNING NR 010
   01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
    ---
   WARNING POSITION:
   071800Z6 --- NEAR 20.7S9 119.6E7
     MOVEMENT PAST SIX HOURS - 130 DEGREES AT 17 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY A COMBINATION OF
     SATELLITE AND SYNOPTIC DATA
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
   DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
   RADIUS OF 035 KT WINDS - 060 NM EAST SEMICIRCLE
                                   OVER WATER
                            030 NM ELSEWHERE
   REPEAT POSIT: 20.7S9 119.6E7
    ---
   FORECASTS:
   12 HRS, VALID AT:
   080600Z4 --- 22.5S9 120.5E8
   MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT
   DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND
    ---
REMARKS:
072100Z0 POSITION NEAR 21.1S4 119.8E9.
TROPICAL CYCLONE (TC) 32S (GWENDA) HAS TRACKED SOUTHEASTWARD AT 17
KNOTS OVER THE PAST 6 HOURS. TC 32S MADE LANDFALL ABOUT 25NM EAST
OF PORT HEDLAND, ALONG THE NORTHWEST COAST OF AUSTRALIA. LANDFALL
TIME IS ESTIMATED NEAR 071600Z4 AND INTENSITY AT LANDFALL IS
ESTIMATED AT 60 KNOTS. THE CURRENT WARNING POSITION AND CURRENT
INTENSITY (50 KNOTS) ARE BASED ON A COMBINATION OF 071730Z8 INFRARED
SATELLITE IMAGERY AND AVAILABLE SYNOPTIC DATA. SATELLITE IMAGERY
SHOWS THE SYSTEM CONTINUES TO WEAKEN DUE TO LANDFALL AND INCREASING
VERTICAL WINDSHEAR. TC 32S IS EXPECTED TO MOVE SOUTHWARD AND
DISSIPATE IN THE NEXT 12 HOURS. THIS IS THE FINAL WARNING ON THIS
SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVPACMETOCCEN WEST GU).
THE SYSTEM WILL BECLOSELY MONITORED FOR SIGNS OF REGENERATION.//

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


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Document: tropical_cyclone_gwenda_jtwc_advisories.htm Updated: 4 September 2016