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本帖最后由 pocketbox 于 2024-11-12 23:35 编辑
WTIO30 FMEE 130717
RSMC / TROPICAL CYCLONE CENTER / LA REUNION
TROPICAL CYCLONE FORECAST WARNING (SOUTH-WEST INDIAN OCEAN)
0.A WARNING NUMBER: 4/3/20242025
1.A ZONE OF DISTURBED WEATHER 3
2.A POSITION 2024/11/13 AT 0600 UTC:
WITHIN 20 NM RADIUS OF POINT 9.7 S / 76.2 E
(NINE DECIMAL SEVEN DEGREES SOUTH AND
SEVENTY SIX DECIMAL TWO DEGREES EAST)
MOVEMENT: WEST 2 KT
3.A DVORAK ANALYSIS: 2.0/2.0/S 0.0/6 H
4.A CENTRAL PRESSURE: 1003 HPA
5.A MAX AVERAGE WIND SPEED (10 MN): 25 KT
RADIUS OF MAXIMUM WINDS (RMW): NIL
6.A EXTENSION OF WIND BY QUADRANTS (KM):
NIL
7.A FIRST CLOSED ISOBAR (PRESSURE / AVERAGE DIAM): 1008 HPA / 700 KM
8.A VERTICAL EXTENSION OF CYCLONE CIRCULATION: MEDIUM
1.B FORECASTS (WINDS RADII IN KM):
12H: 2024/11/13 18 UTC: 10.7 S / 75.9 E, VENT MAX= 030 KT, TROPICAL
DEPRESSION
28 KT NE: 0 SE: 110 SW: 0 NW: 0
24H: 2024/11/14 06 UTC: 11.2 S / 75.4 E, VENT MAX= 035 KT, MODERATE
TROPICAL STORM
28 KT NE: 0 SE: 110 SW: 85 NW: 0
34 KT NE: 0 SE: 75 SW: 85 NW: 0
36H: 2024/11/14 18 UTC: 11.5 S / 75.1 E, VENT MAX= 040 KT, MODERATE
TROPICAL STORM
28 KT NE: 0 SE: 130 SW: 85 NW: 95
34 KT NE: 0 SE: 75 SW: 85 NW: 65
48H: 2024/11/15 06 UTC: 12.2 S / 74.5 E, VENT MAX= 040 KT, MODERATE
TROPICAL STORM
28 KT NE: 100 SE: 150 SW: 140 NW: 100
34 KT NE: 75 SE: 75 SW: 85 NW: 75
60H: 2024/11/15 18 UTC: 13.1 S / 73.2 E, VENT MAX= 045 KT, MODERATE
TROPICAL STORM
28 KT NE: 95 SE: 185 SW: 175 NW: 110
34 KT NE: 65 SE: 100 SW: 85 NW: 85
72H: 2024/11/16 06 UTC: 14.0 S / 71.7 E, VENT MAX= 050 KT, SEVERE
TROPICAL STORM
28 KT NE: 95 SE: 185 SW: 215 NW: 95
34 KT NE: 65 SE: 100 SW: 95 NW: 65
48 KT NE: 0 SE: 45 SW: 45 NW: 0
2.B LONGER-RANGE OUTLOOK:
96H: 2024/11/17 06 UTC: 14.8 S / 68.8 E, VENT MAX= 060 KT, SEVERE
TROPICAL STORM
28 KT NE: 130 SE: 150 SW: 185 NW: 120
34 KT NE: 85 SE: 85 SW: 110 NW: 95
48 KT NE: 35 SE: 55 SW: 45 NW: 45
120H: 2024/11/18 06 UTC: 15.3 S / 67.0 E, VENT MAX= 060 KT, SEVERE
TROPICAL STORM
28 KT NE: 130 SE: 175 SW: 165 NW: 120
34 KT NE: 85 SE: 100 SW: 110 NW: 95
48 KT NE: 50 SE: 60 SW: 50 NW: 50
2.C ADDITIONAL INFORMATION:
T=CI=2.0
OVER THE PAST 6 HOURS, THE SYSTEM HAS MAINTAINED A STRONG CONVECTIVE
ACTIVITY ON THE EDGE OF THE CENTER, PARTICULARLY IN THE NORTHEAST
QUADRANT, POORLY ORGANIZED IN THE FORM OF A WEAK CURVED BAND. THE
ASCAT-B PASS AT 0338Z SHOWS A CIRCULATION THAT IS STILL VERY
ELONGATED, ESTIMATING MAXIMUM WINDS AT 25 KT.
THE SYSTEM'S TRACK IS CURRENTLY QUASI-STATIONARY, WITH A SLIGHT
SOUTHWARD DRIFT THIS WEDNESDAY AS THE SUBTROPICAL RIDGE WEAKENS.
MOVEMENT SHOULD RESUME SOUTH TO SOUTH-SOUTH-WESTWARD ON THURSDAY,
ACCELERATING ONWARDS, HELPED BY THE STRENGTHENING OF THE
MID-TROPOSPHERE RIDGE TO THE SOUTHEAST AND THEN SOUTH. THE DISPERSION
BETWEEN MODELS REMAINS SIGNIFICANT, ILLUSTRATING A HIGH DEGREE OF
UNCERTAINTY ABOUT THE TRACK FOR THE END OF THE WEEK.
THE SYSTEM INTENSIFICATION SHOULD STAGNATE OVER THE NEXT FEW HOURS,
DUE TO A STILL MODERATE EAST TO NORTHEASTERLY SHEAR AND A STILL BROAD
LOW-LEVEL CIRCULATION. THIS SHEAR WILL EASE ON WEDNESDAY EVENING AND
THURSDAY MORNING. WITH HIGH OCEANIC POTENTIAL, GOOD LOW-LEVEL
CONVERGENCE AND EXCELLENT UPPER-LEVEL DIVERGENCE, THIS SHOULD ENABLE
TROPICAL STORM INTENSIFICATION OVER THE NEXT 24 HOURS. FROM FRIDAY
ONWARDS, UNCERTAINTY INCREASES SHARPLY. ALTHOUGH SOME TRANSIENT SHEAR
COULD TEMPORARILY CAP INTENSITY, THE ACCELERATION IN THE DIRECTION OF
THE SHEAR COULD, ON THE CONTRARY, MAINTAIN A FAVORABLE CONTEXT FOR
STRENGTHENING. THE PRESENT FORECAST SUGGESTS AN INTENSIFICATION TO
THE STAGE OF A SEVERE TROPICAL STORM OR EVEN A TROPICAL CYCLONE AT
THE END OF THE FORECAST PERIOD.
FOR THE NEXT 5 DAYS, THE SYSTEM POSES NO THREAT TO INHABITED LAND.= |
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