Tropical Depression Victor Forecast Discussion Number 20
ActuCyclone
4 octobre 2021
000 WTNT45 KNHC 040856 TCDAT5 Tropical Depression Victor Discussion Number 20 NWS National Hurricane Center Miami FL AL202021 500 AM AST Mon Oct 04 2021 Strong southerly vertical wind shear in excess of 25 kt along with entrainment of very dry mid-level air (less than 40 percent relative humidity) has continued to take its toll on Victor. Deep convection has been weakening during the past couple of hours and is now displaced more than 100 nmi north and northeast of the elongated low-level center. The shear is forecast by the global models to increase to more than 30 kt in the next 6-12 hours, while the surrounding environment becomes drier and more stable. As a result, the cyclone is forecast to degenerate into a remnant low later today and likely dissipate by Tuesday, if not sooner. Victor is moving west-northwestward or 300/12 kt, and this general motion is expected to continue through today based on the latest NHC model guidance. As a result, no significant changes were made to the previous track forecast. FORECAST POSITIONS AND MAX WINDS INIT 04/0900Z 18.1N 43.6W 25 KT 30 MPH 12H 04/1800Z 19.2N 45.6W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 05/0600Z...DISSIPATED $$ Forecaster Stewart