alu

  三級強烈熱帶氣旋  
編號：11 F ( 31 P )
名稱：Vaianu

  基本資料  
擾動編號日期：2026 年 04 月 02 日 20 時
JTWC升格日期:2026 年 04 月 05 日 08 時
命名日期　　：2026 年 04 月 05 日 20 時
撤編日期　　：2026 年 04 月 00 日 00 時
登陸地點　　：暫無

  巔峰時期資料  
近中心最強風速
斐濟氣象局 (FMS)：85 kts
聯合颱風警報中心(JTWC)：100 kts ( Cat.3 )
海平面最低氣壓   ：945 百帕

  過去路徑圖   - 來源：維基百科

  擾動編號資料  
91P INVEST 260402 1200 7.8S 176.6E SHEM 15 1009


以上資料來自：FMS、JTWC、颱風論壇整理製作

alu

JTWC評級提升至LOW


AN AREA OF CONVECTION (INVEST 91P) HAS PERSISTED NEAR 9.0S
173.0E, APPROXIMATELY 590 NM NORTH-NORTHEAST OF PORT VILA. ANIMATED
ENHANCED MULTISPECTRAL SATELLITE IMAGERY (MSI) AND A 030047Z OCEANSAT
DEPICTS AN AREA OF CALMER WINDS (5-10 KTS) CLOSER TO THE CENTER, WHILE
MORE ELEVATED WINDS (10-15 KTS) ARE OBSERVED ALONG THE NORTHERN FLANK
OF THE CIRCULATION. WITHIN THE STRUCTURE OF 91P, MULTIPLE
MESOVORTICIES ROTATING CYCLONICALLY ARE IDENTIFIABLE. UPPER AIR
ANALYSIS INDICATES A MARGINALLY FAVORABLE ENVIRONMENT FOR FURTHER
DEVELOPMENT WITH LOW (10-15 KTS) VERTICAL WIND SHEAR, WARM (29-30 C)
SEA SURFACE TEMPERATURES AND A MODERATE POLEWARD OUTFLOW CHANNEL
ASSISTING THE SYSTEM. MODEL GUIDANCE IS IN GOOD AGREEMENT ON A
SOUTHWESTWARD TRACK WITH STEADY INTENSIFICATION OVER THE NEXT 24-48
HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 23 TO 28
KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN
THE NEXT 24 HOURS IS LOW.

king111807

FMS編號11F

Tropical Disturbance Summary For area Equator to 25S, 160E to 120W
ISSUED FROM RSMC NADI Apr 032047 UTC.

TROPICAL DISTURBANCE TD11F CENTRE [1000HPA] WAS ANALYSED NEAR 11.8S
171.5E AT 031800UTC. POSITION POOR BASED ON HIMAWARI-9 VIS/EIR
IMAGERY. TD11F SLOW MOVING.

DEEP CONVECTION REMAINS TO THE EAST AND SOUTHEAST OF THE SUPPOSED
LLCC. TD11F LIES IN A LOW SHEARED ENVIRONMENT, WITH WEAK UPPER
DIVERGENCE AND MODERATE LOWER CONVERGENCE. SST AROUND 29 DEGREES
CELSIUS.

HOWEVER, DRY AIR INTRUSION FROM THE SOUTHWEST OF THE SYSTEM AND
STRONG WIND SHEAR FROM THE SOUTH CAN HINDER FURTHER DEVELOPMENT.

GLOBAL MODELS HAVE PICKED UP THE SYSTEM AND MOVED IT SOUTHWARDS WITH
LITTLE INTENSIFICATION.

THE POTENTIAL FOR THIS SYSTEM TO DEVELOP INTO A TROPICAL CYCLONE IS
VERY LOW IN THE NEXT 24 HOURS.

*********************************************************************
**************

NO OTHER SIGNIFICANT TROPICAL DISTURBANCE ANALYSED OR FORECAST IN THE
AREA.

alu

JTWC評級提升至HIGH




WTPS21 PGTW 041130
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE FORMATION ALERT (INVEST 91P)//
RMKS/
1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN
120 NM EITHER SIDE OF A LINE FROM 12.4S 171.0E TO 16.7S 172.7E
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 28 TO 33 KNOTS. METSAT
IMAGERY AT 040600Z INDICATES THAT A CIRCULATION CENTER IS LOCATED
NEAR 12.7S 171.2E. THE SYSTEM IS MOVING SOUTH-SOUTHWESTWARD AT 04
KNOTS.
2. REMARKS: THE AREA OF CONVECTION (INVEST 91P) PERVIOUSLY LOCATED NEAR
12.3S 171.3E, IS NOW LOCATED NEAR 12.7S 171.2E, APPROXIMATELY 345 NM
NORTH-NORTHEAST OF PORT VILA. MULTISPECTRAL SATELLITE IMAGERY (MSI)
REVEALS A BROAD LOW LEVEL CIRCULATION CENTER (LLCC) WITH AN ELONGATED
BUT SLOWLY CONSOLIDATING CENTER AND RECENTLY DEVELOPING DEEP CONVECTION
ALONG THE EASTERN SIDE OF THE CIRCULATION. A 040959Z ASCAT PASS SHOWS A
DEFINED CIRCULATION WITH STRONGER WINDS OF 25-30 KNOTS WRAPPING AROUND
THE SOUTH AND EASTERN SIDE OF THE CIRCULATION, WITH A FEW ISOLATED
PATCHES OF 35 KNOTS EMBEDDED UNDER THE DEEPEST CONVECTIVE CELLS.
ENVIRONMENTAL ANALYSIS REVEALS FAVORABLE CONDITIONS FOR DEVELOPMENT WITH
LOW TO MODERATE VERTICAL WIND SHEAR (15-20 KNOTS), GOOD DIFFLUENT
OUTFLOW ALOFT, AND WARM SEA SURFACE TEMPERATURES (29-30 C). GLOBAL
MODELS ARE IN FAIR AGREEMENT THAT INVEST 91P WILL CONTINUE TO HAVE
STEADY DEVELOPMENT AND A SOUTHWARD TRACK OVER THE NEXT 12 TO 24 HOURS.
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 28 TO 33 KNOTS.
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE
WITHIN THE NEXT 24 HOURS IS HIGH.
3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY
051130Z.//
NNNN

king111807

JTWC升格31P

WTPS32 PGTW 050300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 31P (THIRTYONE) WARNING NR 001//
REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/041121ZAPR2026//
AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.//
RMKS/
1. TROPICAL CYCLONE 31P (THIRTYONE) WARNING NR 001   
   02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   050000Z --- NEAR 13.8S 171.8E
     MOVEMENT PAST SIX HOURS - 130 DEGREES AT 05 KTS
     POSITION ACCURATE TO WITHIN 060 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   REPEAT POSIT: 13.8S 171.8E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   051200Z --- 14.7S 172.1E
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            020 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
                            130 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 145 DEG/ 04 KTS
    ---
   24 HRS, VALID AT:
   060000Z --- 15.4S 172.6E
   MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            020 NM SOUTHEAST QUADRANT
                            000 NM SOUTHWEST QUADRANT
                            000 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
                            140 NM SOUTHEAST QUADRANT
                            090 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 130 DEG/ 05 KTS
    ---
   36 HRS, VALID AT:
   061200Z --- 16.1S 173.4E
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            020 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
                            060 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
                            160 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 150 DEG/ 07 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   070000Z --- 17.3S 174.1E
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT
                            170 NM SOUTHEAST QUADRANT
                            110 NM SOUTHWEST QUADRANT
                            080 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 150 DEG/ 11 KTS
    ---
   72 HRS, VALID AT:
   080000Z --- 20.9S 176.5E
   MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 050 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 170 NM NORTHEAST QUADRANT
                            180 NM SOUTHEAST QUADRANT
                            140 NM SOUTHWEST QUADRANT
                            110 NM NORTHWEST QUADRANT
   VECTOR TO 96 HR POSIT: 145 DEG/ 10 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   090000Z --- 24.3S 179.0E
   MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT
                            090 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT
                            210 NM SOUTHEAST QUADRANT
                            150 NM SOUTHWEST QUADRANT
                            140 NM NORTHWEST QUADRANT
   VECTOR TO 120 HR POSIT: 150 DEG/ 08 KTS
    ---
   120 HRS, VALID AT:
   100000Z --- 27.0S 179.4W
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            080 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 210 NM NORTHEAST QUADRANT
                            280 NM SOUTHEAST QUADRANT
                            210 NM SOUTHWEST QUADRANT
                            190 NM NORTHWEST QUADRANT
    ---
REMARKS:
050300Z POSITION NEAR 14.0S 171.9E.
05APR26. TROPICAL CYCLONE 31P (THIRTYONE), LOCATED APPROXIMATELY
460 NM WEST-NORTHWEST OF SUVA, FIJI, HAS TRACKED SOUTHEASTWARD AT
05 KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 050000Z IS 994 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 050000Z IS 18 FEET.
NEXT WARNINGS AT 051500Z AND 060300Z.
REFER TO TROPICAL CYCLONE 30P (MAILA) WARNINGS (WTPS31 PGTW 050300)
FOR TWELVE-HOURLY UPDATES.
2. THIS CANCELS AND SUPERSEDES REF A (WTPS21 PGTW 041130).//
NNNN

king111807

FMS升格澳式C1，命名Vaianu

TROPICAL DISTURBANCE ADVISORY NUMBER A04 ISSUED FROM RSMC NADI
Apr 051342 UTC.

TROPICAL CYCLONE VAIANU CENTRE 992HPA CATEGORY 1 WAS LOCATED NEAR
14.9S 172.2E AT 051200 UTC.  POSITION POOR BASED ON HIMAWARI IR
IMAGERY AND PERIPHERAL SURFACE REPORTS. CYCLONE MOVING SOUTH AT ABOUT
05 KNOTS.  MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE ESTIMATED
AT ABOUT 40 KNOTS.

EXPECT WINDS OVER 33 KNOTS WITHIN 110 NAUTICAL MILES IN E SEMICIRCLE
                              
                       AND WITHIN 70 NAUTICAL MILES IN W SEMICIRCLE

DEEP CONVECTION REMAINS PERSISTENT OVER THE LLCC WITH PRIMARY BAND
WRAPPING ONTO THE LLCC FROM THE NORTH. ORGANIZATION HAS IMPROVED
SIGNIFICANTLY OVER THE PAST 24 HOURS. CYCLONIC CIRCULATION EXTENDS UP
TO 400HPA. SYSTEM LIES IN A MODERATE UPPER DIVERGENT AREA WITH A GOOD
POLEWARD OUTFLOW.CYCLONE LIES IN A LOW SHEARED ENVIRONMENT AND IS
MOVING IN TO AN AREA OF DECREASING SHEAR. SST AOUND 29 DEGREES
CELSIUS. DVORAK ANALYSIS BASED ON 0.7 WRAP YEILDS DT=3.0, PT= 3.5,
MET=3.0. FT BASED ON DT. THUS, YEILDING T3.0/3.0/D1.5/24HRS. DVORAK
FT CONTRAINT BROKEN.

GLOBAL MODELS HAVE PICKED UP THIS SYSTEM AND MOVE IT SOUTH AND THEN
SOUTHEAST WITH FURTHER INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 060000 UTC 15.9S 172.7E MOV SSE AT 06KT WITH 50 KT
CLOSE TO CENTRE
AT 24 HRS VALID AT 061200 UTC 16.8S 173.6E MOV SE AT O6 KT WITH 60 KT
CLOSE TO CENTRE

OUTLOOK :
AT 36 HRS VALID AT 070000 UTC 18.1S 174.4E MOV SE AT 07KT WITH 70 KT
CLOSE TO CENTRE
AT 48 HRS VALID AT 071200 UTC 19.6S 175.4E MOV SSE AT 08KT WITH 75 KT
CLOSE TO CENTRE

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL CYCLONE VAIANU
WILL BE ISSUED AT AROUND 052000UTC.

king111807

FMS升格澳式C2

WTPS11 NFFN 051800
TROPICAL DISTURBANCE ADVISORY NUMBER A05 ISSUED FROM RSMC NADI
Apr 052002 UTC.

TROPICAL CYCLONE VAIANU CENTRE 975HPA CATEGORY 2 WAS LOCATED NEAR
15.1S 172.6E AT 051800 UTC.  POSITION POOR BASED ON HIMAWARI IR
IMAGERY AND PERIPHERAL SURFACE REPORTS. CYCLONE MOVING SOUTHEAST AT
ABOUT 04 KNOTS.  MAXIMUM 10-MINUTE AVERAGE WINDS NEAR THE CENTRE
ESTIMATED AT ABOUT 55 KNOTS.

EXPECT WINDS OVER 47 KNOTS WITHIN 40 NAUTICAL MILES OF CENTRE AND

EXPECT WINDS OVER 33 KNOTS WITHIN 120 NAUTICAL MILES IN NE QUADRANT
                       AND WITHIN 110 NAUTICAL MILES IN SE QUADRANT
                        AND WITHIN 90 NAUTICAL MILES IN SW QUADRANT
                        AND WITHIN 70 NAUTICAL MILES IN NW QUADRANT

DEEP CONVECTION REMAINS PERSISTENT AND ORGANIZATION REMAINS GOOD
ORGANISATION WITH EYE DISCERNIBLE ON HIMAWARI IR IMAGERY. CYCLONIC
CIRCULATION EXTENDS UP TO 300HPA. SYSTEM LIES IN A GOOD UPPER
DIVERGENT AREA WITH A GOOD POLEWARD OUTFLOW. CYCLONE LIES IN A LOW
SHEARED ENVIRONMENT AND IS MOVING IN TO AN AREA OF DECREASING SHEAR.
SST AROUND 29 DEGREES CELSIUS. DVORAK ANALYSIS BASED ON W EYE AND CMG
SURROUND THUS YIELDS DT=4.5, PT=4.0 MET=3.0. FT BASED ON PT. THUS,
YIELDING T4.0/4.0/D1.5/24HRS. DVORAK FT CONSTRAINT BROKEN.

GLOBAL MODELS HAVE PICKED UP THIS SYSTEM AND MOVE IT SOUTH AND THEN
SOUTHEAST WITH FURTHER INTENSIFICATION.

FORECASTS :
AT 12 HRS VALID AT 060600 UTC 16.0S 173.2E MOV SE AT 05KT WITH 55 KT
CLOSE TO CENTRE
AT 24 HRS VALID AT 061800 UTC 17.0S 174.1E MOV SE AT 06KT WITH 65 KT
CLOSE TO CENTRE

OUTLOOK :
AT 36 HRS VALID AT 070600 UTC 18.4S 175.1E MOV SE AT 07 KT WITH 70 KT
CLOSE TO CENTRE
AT 48 HRS VALID AT 071800 UTC 20.0S 176.4E MOV SE AT 08 KT WITH 75 KT
CLOSE TO CENTRE.

THE NEXT TROPICAL DISTURBANCE ADVISORY ON TROPICAL CYCLONE VAIANU
WILL BE ISSUED AROUND 060200UTC.

king111807

JTWC升格C1

WTPS32 PGTW 060300
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 31P (VAIANU) WARNING NR 003//
RMKS/
1. TROPICAL CYCLONE 31P (VAIANU) WARNING NR 003   
   02 ACTIVE TROPICAL CYCLONES IN SOUTHPAC
   MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
   WIND RADII VALID OVER OPEN WATER ONLY
    ---
   WARNING POSITION:
   060000Z --- NEAR 15.7S 173.1E
     MOVEMENT PAST SIX HOURS - 140 DEGREES AT 08 KTS
     POSITION ACCURATE TO WITHIN 030 NM
     POSITION BASED ON CENTER LOCATED BY SATELLITE
   PRESENT WIND DISTRIBUTION:
   MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT
                            050 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            070 NM NORTHWEST QUADRANT
   REPEAT POSIT: 15.7S 173.1E
    ---
   FORECASTS:
   12 HRS, VALID AT:
   061200Z --- 16.7S 174.0E
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
                            055 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT
                            140 NM SOUTHEAST QUADRANT
                            110 NM SOUTHWEST QUADRANT
                            085 NM NORTHWEST QUADRANT
   VECTOR TO 24 HR POSIT: 150 DEG/ 08 KTS
    ---
   24 HRS, VALID AT:
   070000Z --- 18.0S 174.8E
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            050 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 150 NM NORTHEAST QUADRANT
                            140 NM SOUTHEAST QUADRANT
                            120 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   VECTOR TO 36 HR POSIT: 150 DEG/ 10 KTS
    ---
   36 HRS, VALID AT:
   071200Z --- 19.7S 175.8E
   MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            040 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT
                            075 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT
                            150 NM SOUTHEAST QUADRANT
                            120 NM SOUTHWEST QUADRANT
                            110 NM NORTHWEST QUADRANT
   VECTOR TO 48 HR POSIT: 150 DEG/ 12 KTS
    ---
   EXTENDED OUTLOOK:
   48 HRS, VALID AT:
   080000Z --- 21.8S 177.2E
   MAX SUSTAINED WINDS - 095 KT, GUSTS 115 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
                            040 NM SOUTHEAST QUADRANT
                            040 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 080 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            060 NM SOUTHWEST QUADRANT
                            050 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 160 NM NORTHEAST QUADRANT
                            170 NM SOUTHEAST QUADRANT
                            130 NM SOUTHWEST QUADRANT
                            110 NM NORTHWEST QUADRANT
   VECTOR TO 72 HR POSIT: 150 DEG/ 11 KTS
    ---
   72 HRS, VALID AT:
   090000Z --- 25.5S 179.5E
   MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
                            030 NM SOUTHEAST QUADRANT
                            030 NM SOUTHWEST QUADRANT
                            030 NM NORTHWEST QUADRANT
   RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
                            070 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 180 NM NORTHEAST QUADRANT
                            200 NM SOUTHEAST QUADRANT
                            160 NM SOUTHWEST QUADRANT
                            140 NM NORTHWEST QUADRANT
   VECTOR TO 96 HR POSIT: 165 DEG/ 08 KTS
    ---
   LONG RANGE OUTLOOK:
    ---
   96 HRS, VALID AT:
   100000Z --- 28.5S 179.7W
   MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   BECOMING EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT
                            080 NM SOUTHEAST QUADRANT
                            070 NM SOUTHWEST QUADRANT
                            060 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 190 NM NORTHEAST QUADRANT
                            250 NM SOUTHEAST QUADRANT
                            220 NM SOUTHWEST QUADRANT
                            180 NM NORTHWEST QUADRANT
   VECTOR TO 120 HR POSIT: 200 DEG/ 09 KTS
    ---
   120 HRS, VALID AT:
   110000Z --- 32.0S 178.9E
   MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
   WIND RADII VALID OVER OPEN WATER ONLY
   EXTRATROPICAL
   RADIUS OF 050 KT WINDS - 110 NM NORTHEAST QUADRANT
                            120 NM SOUTHEAST QUADRANT
                            100 NM SOUTHWEST QUADRANT
                            090 NM NORTHWEST QUADRANT
   RADIUS OF 034 KT WINDS - 250 NM NORTHEAST QUADRANT
                            290 NM SOUTHEAST QUADRANT
                            270 NM SOUTHWEST QUADRANT
                            220 NM NORTHWEST QUADRANT
    ---
REMARKS:
060300Z POSITION NEAR 16.0S 173.3E.
06APR26. TROPICAL CYCLONE 31P (VAIANU), LOCATED APPROXIMATELY 337
NM WEST-NORTHWEST OF SUVA, FIJI, HAS TRACKED SOUTHEASTWARD AT 08
KNOTS OVER THE PAST SIX HOURS.
MINIMUM CENTRAL PRESSURE AT 060000Z IS 971 MB. MAXIMUM
SIGNIFICANT WAVE HEIGHT AT 060000Z IS 26 FEET. NEXT WARNINGS AT
060900Z, 061500Z, 062100Z AND 070300Z.
REFER TO TROPICAL CYCLONE 30P (MAILA) WARNINGS (WTPS31 PGTW 060300)
FOR SIX-HOURLY UPDATES.//
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