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Tropical Storm Odalys Forecast Discussion Number 3
2020-11-04 13:13:09| National Hurricane Center (East Pacific)
Issued at 100 AM PST Wed Nov 04 2020 000 WTPZ45 KNHC 041212 CCA TCDEP5 Tropical Storm Odalys Discussion Number 3...Corrected NWS National Hurricane Center Miami FL EP202020 100 AM PST Wed Nov 04 2020 Corrected Time Zone Information Odalys continues to be characterized by a broad, northeast to southwest oriented circulation with rather sporadic deep convection near the center along with some banding features well displaced to the north and south. A pair of recent ASCAT overpasses showed little change in intensity, with an area of 30-35 kt winds in the northeast quadrant. Based on these values and the latest Dvorak estimate from TAFB, the initial intensity is being held at 35 kt. Strengthening is no longer anticipated, as Odalys has not been able to take advantage of the warm waters in an environment of ample atmospheric moisture and moderate wind shear. By Thursday morning, the cyclone is forecast to encounter strong southwesterly vertical wind shear while moving over waters of about 26 C. By late Thursday, the system will also enter a dry and stable atmospheric environment. These increasingly hostile conditions should cause Odalys to weaken, with the cyclone likely becoming devoid of deep convection in 2-3 days. The latest intensity forecast is in good agreement with the various intensity guidance models. Odalys is moving northwestward at 14 kt. A northwest to west-northwest motion is expected to continue with some decrease in forward speed for the next day or so as the storm moves on the southwestern side of a mid-level ridge that is centered over southern Texas and northern Mexico. As Odalys weakens later this week, a turn to the west and then the southwest is forecast as the weaker and more shallow cyclone should be steered by the low-level northeasterly trade winds. The models remain tightly clustered, and the latest NHC track forecast is very near the previous one. FORECAST POSITIONS AND MAX WINDS INIT 04/0900Z 15.6N 118.5W 35 KT 40 MPH 12H 04/1800Z 16.6N 120.0W 35 KT 40 MPH 24H 05/0600Z 17.7N 121.9W 35 KT 40 MPH 36H 05/1800Z 18.4N 123.5W 30 KT 35 MPH 48H 06/0600Z 18.2N 125.1W 25 KT 30 MPH 60H 06/1800Z 17.6N 126.3W 25 KT 30 MPH...POST-TROP/REMNT LOW 72H 07/0600Z 16.8N 127.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 08/0600Z 15.3N 129.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 09/0600Z...DISSIPATED $$ Forecaster Latto
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