簽到天數: 3382 天 [LV.Master]伴壇終老
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king111807|2026-1-15 16:22
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MFR升格熱帶氣旋
WTIO30 FMEE 141909 CCA
***************CORRECTIVE**************
RSMC / TROPICAL CYCLONE CENTER / LA REUNION
TROPICAL CYCLONE FORECAST WARNING (SOUTH-WEST INDIAN OCEAN)
0.A WARNING NUMBER: 19/6/20252026
1.A TROPICAL CYCLONE 6 (DUDZAI)
2.A POSITION 2026/01/14 AT 1800 UTC:
WITHIN 20 NM RADIUS OF POINT 17.2 S / 75.9 E
(SEVENTEEN DECIMAL TWO DEGREES SOUTH AND
SEVENTY FIVE DECIMAL NINE DEGREES EAST)
MOVEMENT: WEST-SOUTH-WEST 6 KT
3.A DVORAK ANALYSIS: 4.5/4.5/D 0.5/6 H
4.A CENTRAL PRESSURE: 982 HPA
5.A MAX AVERAGE WIND SPEED (10 MN): 65 KT
RADIUS OF MAXIMUM WINDS (RMW): 28 KM
6.A EXTENSION OF WIND BY QUADRANTS (KM):
28 KT NE: 95 SE: 260 SW: 260 NW: 100
34 KT NE: 55 SE: 85 SW: 130 NW: 75
48 KT NE: 35 SE: 35 SW: 60 NW: 55
64 KT NE: 30 SE: 30 SW: 30 NW: 30
7.A FIRST CLOSED ISOBAR (PRESSURE / AVERAGE DIAM): 1012 HPA / 900 KM
8.A VERTICAL EXTENSION OF CYCLONE CIRCULATION: DEEP
1.B FORECASTS (WINDS RADII IN KM):
12H: 2026/01/15 06 UTC: 17.3 S / 74.4 E, VENT MAX= 080 KT, TROPICAL
CYCLONE
28 KT NE: 120 SE: 270 SW: 260 NW: 110
34 KT NE: 65 SE: 130 SW: 150 NW: 75
48 KT NE: 45 SE: 65 SW: 55 NW: 55
64 KT NE: 35 SE: 45 SW: 45 NW: 35
24H: 2026/01/15 18 UTC: 17.2 S / 72.9 E, VENT MAX= 085 KT, TROPICAL
CYCLONE
28 KT NE: 140 SE: 280 SW: 260 NW: 120
34 KT NE: 75 SE: 140 SW: 155 NW: 75
48 KT NE: 45 SE: 65 SW: 55 NW: 55
64 KT NE: 35 SE: 45 SW: 45 NW: 45
36H: 2026/01/16 06 UTC: 17.2 S / 71.5 E, VENT MAX= 070 KT, TROPICAL
CYCLONE
28 KT NE: 150 SE: 285 SW: 270 NW: 130
34 KT NE: 85 SE: 150 SW: 155 NW: 75
48 KT NE: 45 SE: 65 SW: 65 NW: 55
64 KT NE: 35 SE: 45 SW: 55 NW: 45
48H: 2026/01/16 18 UTC: 17.5 S / 69.8 E, VENT MAX= 060 KT, SEVERE
TROPICAL STORM
28 KT NE: 155 SE: 295 SW: 270 NW: 140
34 KT NE: 95 SE: 165 SW: 155 NW: 85
48 KT NE: 45 SE: 75 SW: 65 NW: 65
60H: 2026/01/17 06 UTC: 18.1 S / 68.3 E, VENT MAX= 055 KT, SEVERE
TROPICAL STORM
28 KT NE: 175 SE: 305 SW: 280 NW: 150
34 KT NE: 100 SE: 175 SW: 165 NW: 85
48 KT NE: 55 SE: 75 SW: 75 NW: 65
72H: 2026/01/17 18 UTC: 19.0 S / 66.5 E, VENT MAX= 050 KT, SEVERE
TROPICAL STORM
28 KT NE: 185 SE: 305 SW: 280 NW: 155
34 KT NE: 110 SE: 185 SW: 165 NW: 95
48 KT NE: 55 SE: 75 SW: 75 NW: 65
2.B LONGER-RANGE OUTLOOK:
96H: 2026/01/18 18 UTC: 20.6 S / 62.7 E, VENT MAX= 045 KT, MODERATE
TROPICAL STORM
28 KT NE: 215 SE: 325 SW: 285 NW: 175
34 KT NE: 130 SE: 205 SW: 175 NW: 100
120H: 2026/01/19 18 UTC: 22.2 S / 58.6 E, VENT MAX= 045 KT, MODERATE
TROPICAL STORM
28 KT NE: 240 SE: 335 SW: 295 NW: 195
34 KT NE: 150 SE: 220 SW: 175 NW: 110
2.C ADDITIONAL INFORMATION:
T=CI=4.5-
OVER THE LAST 6 HOURS, THE CONFIGURATION IN THE CENTRE OF THE STORM
HAS REMAINED THE SAME, WITH THE CENTRE MOVING SLIGHTLY MORE TOWARDS
THE CENTRE, ACCORDING TO DATA FROM SENTINEL1A AT 1323UTC AND METOP-3
AT 1636UTC. IN THE LAST FEW MOMENTS, AN EYE SEEMS TO BE REAPPEARING.
IN THIS CONTEXT, A DVORAK ANALYSIS WITH A CDO OF 4.5 CAN BE MADE,
ALLOWING DUDZAI TO RETURN TO TROPICAL CYCLONE STATUS WITH AVERAGE
WINDS OF 65KT. THIS ANALYSIS IS SLIGHTLY ABOVE OTHER SUBJECTIVE AND
OBJECTIVE ESTIMATES, BUT SHOWS THE POTENTIAL FOR DUDZAI TO
REINTENSIFY, WHICH SEEMS TO BE REAPPEARING IN THE LATEST DATA,
VALIDATED BY THE LATEST RCM3 DATA.
LITTLE CHANGE IN TERMS OF TRACK: DUDZAI IS FOLLOWING A WESTERLY TRACK
IN LINE WITH THE STRENGTHENING OF THE SUBTROPICAL MID-TROPOSPHERE
RIDGE IN THE SOUTH-WEST. THIS SCENARIO IS RELATIVELY IN LINE WITH ALL
MODELS, ALTHOUGH THERE IS STILL SOME DISPERSION REGARDING THE SPEED
OF MOVEMENT. AT THE END OF THE WEEK, IN CONNECTION WITH A WEAKNESS IN
THE SUBTROPICAL RIDGE IN THE SOUTH-WEST AND ITS EXPANSION TO THE
EAST, THE SYSTEM IS EXPECTED TO MOVE WEST-SOUTH-WEST. THE RSMC
FORECAST OPTED FOR A SCENARIO SLIGHTLY NORTH OF THE COMPROMISE
BETWEEN THE BEST GUIDANCES AVAILABLE. IT SHOULD BE NOTED THAT THE
DISPERSION IS DOWN COMPARED TO PREVIOUS ANALYSIS TIME, INDICATING
FAIRLY GOOD CONFIDENCE IN THE SYSTEM'S TRACK. IN THIS SCENARIO, THE
SYSTEM IS EXPECTED TO PASS NEAR RODRIGUES BY SUNDAY.
IN TERMS OF INTENSITY, THE SYSTEM IS GRADUALLY RETURNING TO A MORE
FAVOURABLE ENVIRONMENT WITH MODERATE VERTICAL SHEAR AND GREATER
OCEANIC POTENTIAL IN CONNECTION WITH ITS MOVEMENT. IT SHOULD
THEREFORE CONTINUE TO INTENSIFY OVER THE NEXT 24 HOURS. FROM FRIDAY
ONWARDS, THE WEST-NORTHWEST SHEAR SHOULD STRENGTHEN AGAIN AND LEAD TO
A GRADUAL WEAKENING. HOWEVER, THE SMALL SIZE OF THE SYSTEM COULD
CAUSE IT TO REACT MORE QUICKLY TO THIS SHEARING ENVIRONMENT.
CONSEQUENTLY, THE INTENSITY FORECAST REMAINS UNCERTAIN, BUT CONTINUED
WEAKENING REMAINS THE MOST LIKELY OUTCOME FROM FRIDAY ONWARDS, WITH
THE SYSTEM AT THE STAGE OF A STRONG TROPICAL STORM OR LESS AS IT
PASSES CLOSEST TO RODRIGUES.
NO IMPACT IS EXPECTED ON INHABITED LAND OVER THE NEXT 72 HOURS.=
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