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jrchang5|2019-2-9 17:35
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本帖最後由 jrchang5 於 2019-2-9 17:44 編輯
JTWC判定09/06Z升格為四級颶風,近中心最大風速達115kts。
WTXS32 PGTW 090900
MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI//
SUBJ/TROPICAL CYCLONE 13S (GELENA) WARNING NR 014//
RMKS/
1. TROPICAL CYCLONE 13S (GELENA) WARNING NR 014
02 ACTIVE TROPICAL CYCLONES IN SOUTHIO
MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE
WIND RADII VALID OVER OPEN WATER ONLY
---
WARNING POSITION:
090600Z --- NEAR 17.9S 58.8E
MOVEMENT PAST SIX HOURS - 120 DEGREES AT 19 KTS
POSITION ACCURATE TO WITHIN 020 NM
POSITION BASED ON EYE FIXED BY SATELLITE
PRESENT WIND DISTRIBUTION:
MAX SUSTAINED WINDS - 115 KT, GUSTS 140 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
025 NM SOUTHWEST QUADRANT
035 NM NORTHWEST QUADRANT
RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT
055 NM SOUTHEAST QUADRANT
055 NM SOUTHWEST QUADRANT
060 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
105 NM SOUTHWEST QUADRANT
140 NM NORTHWEST QUADRANT
REPEAT POSIT: 17.9S 58.8E
---
FORECASTS:
12 HRS, VALID AT:
091800Z --- 19.2S 61.5E
MAX SUSTAINED WINDS - 130 KT, GUSTS 160 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
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
100 NM SOUTHWEST QUADRANT
110 NM NORTHWEST QUADRANT
VECTOR TO 24 HR POSIT: 120 DEG/ 13 KTS
---
24 HRS, VALID AT:
100600Z --- 20.5S 63.8E
MAX SUSTAINED WINDS - 120 KT, GUSTS 145 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
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
100 NM SOUTHEAST QUADRANT
110 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
VECTOR TO 36 HR POSIT: 125 DEG/ 12 KTS
---
36 HRS, VALID AT:
101800Z --- 21.8S 66.0E
MAX SUSTAINED WINDS - 100 KT, GUSTS 125 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 - 050 NM NORTHEAST QUADRANT
050 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
100 NM SOUTHWEST QUADRANT
100 NM NORTHWEST QUADRANT
VECTOR TO 48 HR POSIT: 120 DEG/ 10 KTS
---
EXTENDED OUTLOOK:
48 HRS, VALID AT:
110600Z --- 22.9S 67.9E
MAX SUSTAINED WINDS - 085 KT, GUSTS 105 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 - 050 NM NORTHEAST QUADRANT
060 NM SOUTHEAST QUADRANT
050 NM SOUTHWEST QUADRANT
050 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT
110 NM SOUTHEAST QUADRANT
110 NM SOUTHWEST QUADRANT
090 NM NORTHWEST QUADRANT
VECTOR TO 72 HR POSIT: 110 DEG/ 09 KTS
---
72 HRS, VALID AT:
120600Z --- 24.1S 71.7E
MAX SUSTAINED WINDS - 070 KT, GUSTS 085 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 - 040 NM NORTHEAST QUADRANT
040 NM SOUTHEAST QUADRANT
030 NM SOUTHWEST QUADRANT
040 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
080 NM SOUTHWEST QUADRANT
080 NM NORTHWEST QUADRANT
VECTOR TO 96 HR POSIT: 085 DEG/ 07 KTS
---
LONG RANGE OUTLOOK:
---
96 HRS, VALID AT:
130600Z --- 23.9S 74.6E
MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT
030 NM SOUTHEAST QUADRANT
020 NM SOUTHWEST QUADRANT
020 NM NORTHWEST QUADRANT
RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
060 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
VECTOR TO 120 HR POSIT: 095 DEG/ 07 KTS
---
120 HRS, VALID AT:
140600Z --- 24.2S 77.7E
MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT
WIND RADII VALID OVER OPEN WATER ONLY
RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT
090 NM SOUTHEAST QUADRANT
070 NM SOUTHWEST QUADRANT
070 NM NORTHWEST QUADRANT
---
REMARKS:
090900Z POSITION NEAR 18.2S 59.5E.
TROPICAL CYCLONE 13S (GELENA), LOCATED APPROXIMATELY 157 NM
NORTH-NORTHEAST OF PORT LOUIS, MAURITIUS, HAS TRACKED EAST-
SOUTHEASTWARD AT 19 KNOTS OVER THE PAST SIX HOURS. ANIMATED
MULTISPECTRAL SATELLITE IMAGERY (MSI) SHOWS ROBUST DEEP CONVECTION
SURROUNDING A SMALL EYE. THE INITIAL POSITION IS BASED ON THE EYE
WITH HIGH CONFIDENCE. THE INITIAL INTENSITY IS ASSESSED AT 115 KNOTS
BASED ON MULTIAGENCY DVORAK CURRENT INTENSITY ESTIMATES OF T6.0 (115
KTS). TC 13S IS TAPPING INTO A MIDLATITUDE TROUGH TO ITS SOUTH AND
STRONG POLEWARD OUTFLOW, LOW VERTICAL WIND SHEAR, AND FAVORABLE SST
VALUES (29-30C) ARE FUELING CONTINUED INTENSIFICATION, WITH AN
EXPECTED PEAK AT 130 KTS AT TAU 12. TC 13S IS FORECAST TO TRACK EAST-
SOUTHEASTWARD TO EASTWARD THROUGH THE FORECAST PERIOD AS IT TRACKS
ALONG THE SOUTHERN PERIPHERY OF A NEAR-EQUATORIAL RIDGE. NUMERICAL
MODEL GUIDANCE REMAINS IN TIGHT AGREEMENT THROUGH TAU 72, BUT
UNCERTAINTY INCREASES SOMEWHAT AFTERWARDS IN ALONG-TRACK SPEED AND
NORTH-SOUTH SPREAD AS THE MIDLATITUDE TROUGH LEAVES TC 13S BEHIND.
AFTER TAU 72, ECMWF IS THE NORTHERN OUTLIER, WHILE NAVGEM AND GFS
BRING THE TRACK SOUTH OF THE MULTI-MODEL CONSENSUS; HOWEVER, ALL
MODELS AGREE ON A DUE EASTWARD TRACK AND SPREAD AT TAU 120 IS ONLY
150 NM. TC 13S IS EXPECTED TO WEAKEN STEADILY AFTER TAU 12 DUE TO
INCREASING WESTERLY VERTICAL WIND SHEAR AND UPPER-LEVEL CONVERGENCE
ASSOCIATED WITH THE SUBTROPICAL WESTERLIES. MESOSCALE MODEL
INTENSITY GUIDANCE HAS BACKED OFF IN THE NEAR TERM BUT STILL SHOWS
SLIGHT INTENSIFICATION THROUGH TAU 12. AFTERWARD, COAMPS-NAVGEM AND
HWRF MAINTAIN SYSTEM INTENSITY ABOVE 65 KTS THROUGHOUT THE FORECAST
PERIOD, ALTHOUGH VWS WILL REMAIN HIGH, DIVERGENCE ALOFT WILL BE
LIMITED BY UPPER-LEVEL SUBTROPICAL WESTERLIES, AND THE SYSTEM WILL
BE TRACKING INTO DRIER AIR. THE JTWC FORECAST FAVORS A WEAKENING AND
DISSIPATION SCENARIO DUE TO THE PERSISTENT MARGINAL TO UNFAVORABLE
ENVIRONMENT. OVERALL, THERE IS HIGH CONFIDENCE IN THE JTWC FORECAST
TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 090600Z IS 37 FEET. NEXT
WARNINGS AT 091500Z, 092100Z, 100300Z AND 100900Z.
REFER TO TROPICAL CYCLONE 12S (FUNANI) WARNINGS (WTXS31 PGTW)
FOR SIX-HOURLY UPDATES.//
NNNN
MFR亦認定此強烈熱帶氣旋於09/06Z近中心最大風速達105kts。
ZCZC 622
WTIO30 FMEE 090641
RSMC / TROPICAL CYCLONE CENTER / LA REUNION
TROPICAL CYCLONE FORECAST WARNING (SOUTH-WEST INDIAN OCEAN)
0.A WARNING NUMBER: 17/9/20182019
1.A INTENSE TROPICAL CYCLONE 9 (GELENA)
2.A POSITION 2019/02/09 AT 0600 UTC:
WITHIN 20 NM RADIUS OF POINT 17.8 S / 58.7 E
(SEVENTEEN DECIMAL EIGHT DEGREES SOUTH AND
FIFTY EIGHT DECIMAL SEVEN DEGREES EAST)
MOVEMENT: EAST-SOUTH-EAST 15 KT
3.A DVORAK ANALYSIS: 6.0/6.0/D 1.0/24 H
4.A CENTRAL PRESSURE: 945 HPA
5.A MAX AVERAGE WIND SPEED (10 MN): 105 KT
RADIUS OF MAXIMUM WINDS (RMW): 19 KM
6.A EXTENSION OF WIND BY QUADRANTS (KM):
28 KT NE: 310 SE: 190 SW: 230 NW: 300
34 KT NE: 220 SE: 130 SW: 140 NW: 140
48 KT NE: 90 SE: 70 SW: 80 NW: 80
64 KT NE: 60 SE: 60 SW: 60 NW: 60
7.A FIRST CLOSED ISOBAR (PRESSURE / AVERAGE DIAM): 1009 HPA / 600 KM
8.A VERTICAL EXTENSION OF CYCLONE CIRCULATION: DEEP
1.B FORECASTS:
12H: 2019/02/09 18 UTC: 19.4 S / 61.7 E, VENT MAX= 110 KT, INTENSE
TROPICAL CYCLONE
24H: 2019/02/10 06 UTC: 20.7 S / 64.2 E, VENT MAX= 095 KT, INTENSE
TROPICAL CYCLONE
36H: 2019/02/10 18 UTC: 22.0 S / 66.5 E, VENT MAX= 085 KT, TROPICAL
CYCLONE
48H: 2019/02/11 06 UTC: 23.4 S / 68.5 E, VENT MAX= 075 KT, TROPICAL
CYCLONE
60H: 2019/02/11 18 UTC: 24.4 S / 70.7 E, VENT MAX= 065 KT, TROPICAL
CYCLONE
72H: 2019/02/12 06 UTC: 24.5 S / 72.6 E, VENT MAX= 055 KT, SEVERE
TROPICAL STORM
2.B LONGER-RANGE OUTLOOK:
96H: 2019/02/13 06 UTC: 24.1 S / 75.2 E, VENT MAX= 040 KT, MODERATE
TROPICAL STORM
120H: 2019/02/14 06 UTC: 24.4 S / 78.2 E, VENT MAX= 030 KT, FILLING
UP
2.C ADDITIONAL INFORMATION:
T=6.0+, CI=6.0+
EXTREMELY DANGEROUS CYCLONE GELENA HEADING TOWARDS RODRIGUES !
OVER THE PAST 6 HOURS, THE EYE PATTERN OF GELENA HAS CONTINUED TO
IMPROVE WITH A WARMING EYE AND COLDER CLOUD TOPS. THE INITIAL
INTENSITY IS RAISED AT 105 KT BASED ON LATEST DVORAK ANALYSIS.
SHORTLY BEFORE 06 UTC, THE RAW DT NUMBERS ARE NOW AT 6.5.
GELENA IS NOW ACCELERATING EAST-SOUTH-EASTWARDS AND GELENA IS STILL
EXPECTED TO RACE ON THIS TRACK UNTIL TOMORROW MORNING BEFORE A
GRADUAL DECREASE IN FORWARD MOTION. THE DEEP UPPER-TO-MID LEVELS
TROUGH LOCATED SOUTH OF THE MASCARENES ALONG WITH A STRENGTHENING
NEAR EQUATORIAL RIDGE IN THE NORTH-EAST ARE STILL STEERING THE
CYCLONE. THESE TWO SYNOPTIC FEATURES ARE FUNNELING THE TRACK AND
PROVIDE GOOD CONFIDENCE FOR THE NEXT TWO DAYS. FROM MONDAY THERE IS A
LOT MORE SPREAD IN THE GUIDANCE IN RELATIONSHIP WITH THE RATE OF
WEAKENING. THE CURRENT TRACK LIES MORE CLOSER TO THE GFS SOLUTION AT
THE INITIAL STAGE AND THEN IS CLOSE TO THE MULTI-ENSEMBLE LATER IN
THE FORECAST PERIOD.
THE CURRENT RAPID MOTION OF GELENA ALLOW IT TO ESCAPE THE HARMFUL
EFFECTS OF OF AN INCREASE OF THE SHEAR AT PRESENT TIME. GIVEN THE
CURRENT TREND, SOME ADDITIONAL STRENGTHENING IS LIKELY TODAY BEFORE A
WEAKENING TREND THAT SHOULD START LATER TONIGHT AND TOMORROW.
ON THIS TRACK, GELENA IS EXPECTED TO PASS VERY CLOSE OR OVER
RODRIGUES ISLANDS LATER TONIGHT OR TOMORROW MORNING. THIS IS A VERY
SERIOUS SITUATION AND THE INHABITANTS OF RODRIGUES ARE INVITED TO
CLOSELY MONITOR THE PROGRESS OF GELENA THROUGH THE NEXT WARNINGS AND
PRODUCTS FROM MMS. DYNAMICAL FETCH SHOULD TRIGGER A SIGNIFICANT SWELL
EVENT ALONG WITH ANOMALOUS SEA LEVEL RISING THAT COULD REACH 2 METERS
OVER SOME EXPOSED AREAS.=
NNNN
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