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Tropical Storm Odalys Forecast Discussion Number 2
2020-11-04 03:41:15| National Hurricane Center (East Pacific)
Issued at 800 PM PDT Tue Nov 03 2020 000 WTPZ45 KNHC 040241 TCDEP5 Tropical Storm Odalys Discussion Number 2 NWS National Hurricane Center Miami FL EP202020 800 PM PDT Tue Nov 03 2020 Satellite images indicate that Odalys has not changed much since genesis earlier today. The cyclone still has a large curved band on the western side of the storm, but there is little organized convection to the east of the center. The overall circulation remains quite broad and appears elongated from northeast to southwest. The Dvorak classifications from TAFB and SAB were both T2.5/35 kt at 0000Z, and the ADT and SATCON numbers from CIMSS at the University of Wisconsin are about the same. Based on these estimates, the initial intensity is held at 35 kt. Odalys could strengthen slightly overnight and early Wednesday while it remains over warm water and in moderate wind shear conditions. However, the models agree that any opportunity for strengthening should end in about 24 hours when Odalys moves into a region of strong southerly to southwesterly vertical wind shear. The combination of the increasing shear, cooler waters, and drier and more stable air should cause Odalys to begin weakening by Wednesday night or early Thursday. The cyclone is now forecast to degenerate into a remnant low on Friday, but that could occur even sooner. The NHC intensity forecast is unchanged from the previous one, and is in line with the majority of the guidance. The tropical storm is moving west-northwestward at about 13 kt on the southwestern side of a mid-level ridge that is centered over southern Texas and northern Mexico. A continued west-northwest to northwest motion, but at a slower pace, is expected during the next 24 to 36 hours. After that time, a turn to the west and then the southwest is forecast as the weaker and more shallow Odalys should be steered by the low-level northeasterly trade winds. The models are tightly clustered, and the NHC track forecast is just an update of the previous one. FORECAST POSITIONS AND MAX WINDS INIT 04/0300Z 14.9N 117.2W 35 KT 40 MPH 12H 04/1200Z 16.0N 118.9W 40 KT 45 MPH 24H 05/0000Z 17.3N 120.8W 40 KT 45 MPH 36H 05/1200Z 18.1N 122.6W 35 KT 40 MPH 48H 06/0000Z 18.5N 124.3W 30 KT 35 MPH 60H 06/1200Z 18.1N 125.8W 25 KT 30 MPH 72H 07/0000Z 17.3N 126.9W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 08/0000Z 15.6N 129.1W 20 KT 25 MPH...POST-TROP/REMNT LOW 120H 09/0000Z...DISSIPATED $$ Forecaster Cangialosi
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