簽到天數: 1650 天 [LV.Master]伴壇終老
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老農民版夜神月|2020-2-10 23:00
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JTWC10/12Z判定其已升格為C1,定強65KT,並預測其24H後上望75KT
WTPS31 PGTW 101500
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 15P (UESI) WARNING NR 007//
RMKS/
1. TROPICAL CYCLONE 15P (UESI) WARNING NR 007
01 ACTIVE TROPICAL CYCLONE IN SOUTHPAC
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
101200Z --- NEAR 17.6S 162.5E
MOVEMENT PAST SIX HOURS - 205 DEGREES AT 04 KTS
POSITION ACCURATE TO WITHIN 030 NM
POSITION BASED ON CENTER LOCATED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
020 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
045 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
160 NM SOUTHEAST QUADRANT
135 NM SOUTHWEST QUADRANT
085 NM NORTHWEST QUADRANT
REPEAT POSIT: 17.6S 162.5E
---
FORECASTS:
12 HRS, VALID AT:
110000Z --- 18.5S 162.5E
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 000 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
000 NM SOUTHWEST QUADRANT
000 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT
170 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 175 DEG/ 05 KTS
---
24 HRS, VALID AT:
111200Z --- 19.5S 162.6E
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 000 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
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 - 100 NM NORTHEAST QUADRANT
160 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 180 DEG/ 05 KTS
---
36 HRS, VALID AT:
120000Z --- 20.5S 162.6E
MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
130 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 195 DEG/ 05 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
121200Z --- 21.5S 162.3E
MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT
010 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
010 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
150 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 215 DEG/ 08 KTS
---
72 HRS, VALID AT:
131200Z --- 24.2S 160.4E
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING SUBTROPICAL
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
070 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
200 NM SOUTHEAST QUADRANT
150 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 220 DEG/ 11 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
141200Z --- 27.5S 157.2E
MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT
WIND RADII VALID OVER OPEN WATER ONLY
SUBTROPICAL
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
040 NM SOUTHWEST QUADRANT
030 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT
220 NM SOUTHEAST QUADRANT
140 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
---
REMARKS:
101500Z POSITION NEAR 17.8S 162.5E.
10FEB20. TROPICAL CYCLONE (TC) 15P (UESI), LOCATED APPROXIMATELY 332
NM WEST OF PORT VILA, VANUATU, HAS TRACKED SOUTH-SOUTHWESTWARD AT
04 KNOTS OVER THE PAST SIX HOURS. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY INDICATES A CONSOLIDATING SYSTEM WITH A CENTRAL
DENSE OVERCAST OBSCURING THE LOW-LEVEL CIRCULATION CENTER (LLCC). A
101029Z MHS 89GHZ MICROWAVE IMAGE DEPICTS TIGHTLY-CURVED BANDING
WRAPPING INTO THE LLCC. THE INITIAL POSITION IS BASED ON A 101030Z
ASCAT-B BULLSEYE IMAGE SHOWING A WELL-DEFINED CENTER WITH 50-55 KNOT
WINDS OVER THE WESTERN QUADRANT. THE 34-KNOT AND 50-KNOT WIND RADII
HAVE BEEN ADJUSTED AND ARE BASED ON A DETAILED ANALYSIS OF THIS
ASCAT IMAGERY. THE INITIAL INTENSITY IS ASSESSED AT 65 KNOTS BASED
ON PGTW/KNES/NFFN DVORAK ESTIMATES OF T4.0 (65 KNOTS). ADDITIONALLY,
THIS IS ALSO SUPPORTED BY A 100736Z SMAP IMAGE, WHICH SHOWS MAXIMUM
1-MINUTE AVERAGE WINDS OF 62.4 KNOTS. TC UESI WILL TRACK SOUTHWARD
TO SOUTH-SOUTHWESTWARD THROUGH TAU 72 ALONG THE WESTERN PERIPHERY OF
A SUBTROPICAL RIDGE (STR) POSITIONED TO THE EAST AND SOUTHEAST.
AFTER TAU 72, TC UESI WILL TURN SOUTHWESTWARD AS THE STR RE-ORIENTS.
OVERALL, ENVIRONMENTAL CONDITIONS REMAIN FAVORABLE WITH LOW (15
KNOTS) VERTICAL WIND SHEAR (VWS), ROBUST POLEWARD OUTFLOW AND WARM
SST VALUES (28C). THESE CONDITIONS SHOULD ALLOW TC 15P TO INTENSIFY
OVER THE NEXT DAY WITH A PEAK INTENSITY OF 75 KNOTS AT TAU 24. AFTER
TAU 24, VWS WILL INCREASE THROUGH THE FORECAST PERIOD RANGING FROM
25 TO 40 KNOTS AS THE SYSTEM ENCOUNTERS INCREASING NORTHWESTERLY
UPPER-LEVEL FLOW ASSOCIATED WITH AN APPROACHING SHORTWAVE TROUGH.
NEAR TAU 72, THE SYSTEM WILL UNDERGO SUBTROPICAL TRANSITION AS IT
BECOMES EMBEDDED WITHIN A BROAD 500MB LOW EAST OF AUSTRALIA AND
ENCOUNTERS INCREASING BAROCLINICITY AND COOLING SST VALUES (24-26C).
THE SYSTEM SHOULD COMPLETE SUBTROPICAL TRANSITION BY TAU 96. OVERALL
CONFIDENCE IN THE JTWC FORECAST TRACK REMAINS FAIR WITH MODEL
GUIDANCE SPREAD INCREASING TO 277NM AT TAU 96. MAXIMUM SIGNIFICANT
WAVE HEIGHT AT 101200Z IS 20 FEET. NEXT WARNINGS AT 102100Z,
110300Z, 110900Z AND 111500Z.//
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