簽到天數: 3382 天 [LV.Master]伴壇終老
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king111807|2026-1-12 13:03
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MFR升格熱帶氣旋
WTIO30 FMEE 111848
RSMC / TROPICAL CYCLONE CENTER / LA REUNION
TROPICAL CYCLONE FORECAST WARNING (SOUTH-WEST INDIAN OCEAN)
0.A WARNING NUMBER: 7/6/20252026
1.A TROPICAL CYCLONE 6 (DUDZAI)
2.A POSITION 2026/01/11 AT 1800 UTC:
WITHIN 20 NM RADIUS OF POINT 15.8 S / 77.2 E
(FIFTEEN DECIMAL EIGHT DEGREES SOUTH AND
SEVENTY SEVEN DECIMAL TWO DEGREES EAST)
MOVEMENT: SOUTH-EAST 3 KT
3.A DVORAK ANALYSIS: 4.5/4.5/D 0.5/6 H
4.A CENTRAL PRESSURE: 979 HPA
5.A MAX AVERAGE WIND SPEED (10 MN): 65 KT
RADIUS OF MAXIMUM WINDS (RMW): 19 KM
6.A EXTENSION OF WIND BY QUADRANTS (KM):
28 KT NE: 100 SE: 95 SW: 95 NW: 85
34 KT NE: 75 SE: 65 SW: 65 NW: 55
48 KT NE: 35 SE: 35 SW: 40 NW: 35
64 KT NE: 20 SE: 20 SW: 20 NW: 20
7.A FIRST CLOSED ISOBAR (PRESSURE / AVERAGE DIAM): 1009 HPA / 400 KM
8.A VERTICAL EXTENSION OF CYCLONE CIRCULATION: DEEP
1.B FORECASTS (WINDS RADII IN KM):
12H: 2026/01/12 06 UTC: 16.4 S / 77.8 E, VENT MAX= 080 KT, TROPICAL
CYCLONE
28 KT NE: 140 SE: 150 SW: 130 NW: 120
34 KT NE: 95 SE: 95 SW: 85 NW: 75
48 KT NE: 55 SE: 45 SW: 65 NW: 45
64 KT NE: 45 SE: 35 SW: 35 NW: 30
24H: 2026/01/12 18 UTC: 17.0 S / 77.9 E, VENT MAX= 085 KT, TROPICAL
CYCLONE
28 KT NE: 140 SE: 165 SW: 150 NW: 120
34 KT NE: 95 SE: 100 SW: 85 NW: 75
48 KT NE: 55 SE: 55 SW: 65 NW: 45
64 KT NE: 45 SE: 45 SW: 35 NW: 35
36H: 2026/01/13 06 UTC: 17.4 S / 77.6 E, VENT MAX= 090 KT, INTENSE
TROPICAL CYCLONE
28 KT NE: 140 SE: 185 SW: 165 NW: 120
34 KT NE: 95 SE: 100 SW: 95 NW: 75
48 KT NE: 55 SE: 55 SW: 65 NW: 45
64 KT NE: 45 SE: 45 SW: 45 NW: 35
48H: 2026/01/13 18 UTC: 17.6 S / 77.1 E, VENT MAX= 090 KT, INTENSE
TROPICAL CYCLONE
28 KT NE: 150 SE: 220 SW: 195 NW: 120
34 KT NE: 95 SE: 120 SW: 110 NW: 85
48 KT NE: 55 SE: 65 SW: 75 NW: 65
64 KT NE: 45 SE: 55 SW: 45 NW: 45
60H: 2026/01/14 06 UTC: 17.7 S / 76.5 E, VENT MAX= 090 KT, INTENSE
TROPICAL CYCLONE
28 KT NE: 150 SE: 260 SW: 215 NW: 140
34 KT NE: 100 SE: 140 SW: 130 NW: 85
48 KT NE: 55 SE: 65 SW: 75 NW: 65
64 KT NE: 45 SE: 55 SW: 45 NW: 45
72H: 2026/01/14 18 UTC: 17.7 S / 75.7 E, VENT MAX= 085 KT, TROPICAL
CYCLONE
28 KT NE: 155 SE: 280 SW: 220 NW: 130
34 KT NE: 100 SE: 140 SW: 130 NW: 85
48 KT NE: 65 SE: 65 SW: 75 NW: 65
64 KT NE: 45 SE: 55 SW: 45 NW: 45
2.B LONGER-RANGE OUTLOOK:
96H: 2026/01/15 18 UTC: 17.6 S / 73.5 E, VENT MAX= 065 KT, TROPICAL
CYCLONE
28 KT NE: 195 SE: 415 SW: 285 NW: 150
34 KT NE: 130 SE: 215 SW: 185 NW: 100
48 KT NE: 65 SE: 75 SW: 85 NW: 65
64 KT NE: 55 SE: 65 SW: 45 NW: 45
120H: 2026/01/16 18 UTC: 17.7 S / 70.4 E, VENT MAX= 060 KT, SEVERE
TROPICAL STORM
28 KT NE: 205 SE: 555 SW: 350 NW: 155
34 KT NE: 130 SE: 285 SW: 230 NW: 100
48 KT NE: 60 SE: 70 SW: 70 NW: 60
2.C ADDITIONAL INFORMATION:
T=CI=4.5-
OVER THE LAST 6 HOURS, DUDZAI HAS DEVELOPED A CURVED BAND PATTERN,
EVEN LOOKING LIKE A RAGGED EYE. BUT THE NOTABLE FEATURE IS THE
STRENGTHENING OF CONVECTION, WITH VERY COLD PEAKS DISPOSED ALMOST
SYMMETRICALLY AROUND THE CENTER. IN ADDITION, A EVACUATION CHANNEL ON
THE POLAR SIDE OF THE SYSTEM IS HIGHLIGHTED BY SATELLITE IMAGES,
UNDERLINING AN EFFICIENT ALTITUDE DIVERGENCE. THE OCCASIONAL
APPEARANCE OF AN EYE IN THE MIDDLE OF THE CONVECTION HAS MADE IT
POSSIBLE TO POSITION THE CENTER. IN TERMS OF DVORAK ANALYSIS, THE DT
IS 4.5 AND THE MET IS 3.5, ADJUSTED TO 4.0 BY THE PT. THE FINAL T
NUMBER IS A COMPROMISE AT 4.5-. OBJECTIVE ANALYSES WERE NOT USED AS
THEY WERE CONSIDERED TOO WEAK. THE AVERAGE MAXIMUM WIND SPEED VALUE
CHOSEN IS THEREFORE 65KT AND THE SYSTEM IS CLASSIFIED AS A TROPICAL
CYCLONE.
THE SYSTEM IS EXPECTED TO TRACK SOUTH-SOUTH-EAST UNTIL MONDAY, DRIVEN
BY THE MID-LEVEL RIDGE LOCATED TO THE NORTHEAST THEN EAST. AROUND
TUESDAY, WHEN IT IS EXPECTED TO REACH ITS MAXIMUM INTENSITY, IT WILL
BE CAUGHT IN CONTRADICTORY STEERING FLOWS AND IS EXPECTED TO SLOW
DOWN SIGNIFICANTLY. FROM TUESDAY NIGHT OR WEDNESDAY ONWARDS, THE
STRENGTHENING OF THE SUBTROPICAL MID-LEVEL RIDGE SOUTHWEST SHOULD
LEAD TO A GRADUAL WESTWARD TURN. THE MOVEMENT IS EXPECTED TO
ACCELERATE AT THE END OF THE WEEK AS THE RIDGE STRENGTHENS SOUTH OF
THE SYSTEM. MODEL SPREAD IS QUITE HIGH REGARDING THE WESTWARD TURN
AND THEN ABOUT HOW FAR SOUTH THE SYSTEM WILL TRACK AT THE END OF THE
WEEK.
IN TERMS OF INTENSITY, DUDZAI IS EXPECTED TO KEEP BENEFITING FROM
FAVORABLE ENVIRONMENTAL CONDITIONS FOR THE NEXT 48 TO 60 HOURS (LOW
VERTICAL SHEAR, WARM WATERS NEAR 28C THEN 27C, STRONG UPPER
DIVERGENCE WITH A POLEWARD OUTFLOW CHANNEL). DUDZAI SHOULD THEREFORE
CONTINUE TO STRENGTHEN, WITH A POSSIBILITY OF RAPID INTENSIFICATION.
ITS PEAK INTENSITY IS EXPECTED AROUND TUESDAY AND COULD REACH INTENSE
TROPICAL CYCLONE STAGE, WHICH IS SUPPORTED BY AN INCREASING AMOUNT OF
MODELS. FROM WEDNESDAY, INCREASING WESTERLY TO NORTHWESTERLY SHEAR IS
EXPECTED TO CAUSE A GRADUAL WEAKENING TREND. UNCERTAINTY ABOUT THE
INTENSITY FORECAST IS SIGNIFICANT AT THE END OF THE WEEK: THE
FORECAST HAS BEEN REVISED SLIGHTLY UPWARD IN LINE WITH A GROWING
NUMBER OF MODELS SUGGESTING LESS SIGNIFICANT WEAKENING.
NO IMPACT IS EXPECTED ON INHABITED LAND OVER THE NEXT 72 HOURS.=
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