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有趣,MFR此前的报文显示10Z仍为TS,不知道是笔误还是两小时后就转化为了SS
AWIO20 FMEE 271155
TROPICAL CYCLONE CENTER / RSMC LA REUNION / METEO-FRANCE
BULLETIN FOR CYCLONIC ACTIVITY AND SIGNIFICANT TROPICAL WEATHER
IN THE SOUTHWEST INDIAN OCEAN
DATE: 27/04/2026 AT 1200 UTC
PART 1: WARNING SUMMARY
Nil, but system JULUKA will be monitored by RSMC La Réunion at 12 UTC.
PART 2 : TROPICAL WEATHER DISCUSSION
The basin exhibits a poorly defined near-equatorial trough (NET) configuration around 5°S and between 55°E and 75°E.
Convective activity is generally weak to moderate north of the NET and east of the Chagos Islands in the area where the
trade wind flow slows down. Outside the TPE, convective activity is also moderate to strong near Subtropical Storm
JULUKA, which is moving south of Madagascar near 34°S and 48°E.
A westward wind anomaly is expected to gradually set in along the equator over the next few days as the MJO moves
into our basin. Conditions should thus become more favorable for cyclogenesis, with the TPE becoming better defined.
An interaction between Kelvin and Rossby waves could also intensify vorticity and convection within this TPE, creating
conditions more conducive to cyclogenesis by the end of the week.
Tropical Storm JULUKA :
Information at 10 UTC :
Estimated position: 34.4S / 47.9
Movement : SSE, 07 kt
Maximum wind speed (averaged over 10 minutes): 35 kt
Estimated central pressure: 1000 hPa
For further information, please refer to bulletins WTIO24 and WTIO30 which will be issued at 12 UTC.
Development of a tropical storm is not expected over the next 5 days.
10-day outlook:
As the MJO moves across the Indian Ocean, the pattern is expected to continue improving in early May, with increasing
convergence within the NET. Consequently, models suggest a low risk of cyclogenesis over the central basin during the
week of May 4th but this risk is currently negligible. |
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