ZCZC MIATCDEP2 ALL TTAA00 KNHC DDHHMM Post-Tropical Cyclone Genevieve Discussion Number 22 NWS National Hurricane Center Miami FL EP122020 200 PM PDT Fri Aug 21 2020 Cool waters and less favorable thermodynamic conditions have continued to take a toll on Genevieve. The system has not had any deep convection for more than 12 hours, and it is unlikely that any organized deep convection will return. As a result, Genevieve has become a post-tropical cyclone and this will be the final NHC advisory on this system. The initial wind speed is set at 35 kt, which is in agreement with recent scatterometer data. The post-tropical cyclone should continue to gradually weaken over cooler water during the next couple of days, and the global model guidance indicates that the circulation will become an open trough within 72 hours. The cyclone continues to move northwestward at about 10 kt. A northwestward motion is forecast to continue over the next couple of days, but the forward speed of the system is expected to slow as it becomes increasing shallow and is steered by the weaker low-level flow. The track guidance remains tightly clustered and the new foreast is an extension of the previous advisory. This is the final NHC advisory on Genevieve. Additional information on the post-tropical cyclone can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php FORECAST POSITIONS AND MAX WINDS INIT 21/2100Z 25.8N 115.5W 35 KT 40 MPH...POST-TROPICAL 12H 22/0600Z 27.0N 117.0W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 22/1800Z 28.3N 119.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 23/0600Z 29.2N 120.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 23/1800Z 30.2N 121.9W 15 KT 15 MPH...POST-TROP/REMNT LOW 60H 24/0600Z...DISSIPATED $$ Forecaster Brown NNNN
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Page last modified: Thursday, 31-Dec-2020 12:11:25 UTC