Post-Tropical Cyclone Bill Forecast Discussion Number 6
ActuCyclone
15 juin 2021
ZCZC MIATCDAT2 ALL TTAA00 KNHC DDHHMM Post-Tropical Cyclone Bill Discussion Number 7 NWS National Hurricane Center Miami FL AL022021 1100 PM AST Tue Jun 15 2021 Satellite imagery indicates that Bill has become extratropical over the north Atlantic. A partial scatterometer overpass showed 35-40 kt winds to the east-southeast of the center, so the initial intensity is lowered to a possibly generous 45 kt. The extratropical low should continue to weaken and move quickly toward the northeast until it weakens to a trough between 12-24 h. This is the last advisory on Bill by the National Hurricane Center. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php FORECAST POSITIONS AND MAX WINDS INIT 16/0300Z 43.5N 57.0W 45 KT 50 MPH...POST-TROP/EXTRATROP 12H 16/1200Z 46.5N 53.9W 40 KT 45 MPH...POST-TROP/EXTRATROP 24H 17/0000Z...DISSIPATED $$ Forecaster Beven NNNN