WTNT45 KNHC 151432

Post-Tropical Cyclone Theta Discussion Number 23
NWS National Hurricane Center Miami FL AL302020
300 PM GMT Sun Nov 15 2020

Theta has run out of theta-e. The cyclone has been without significant deep convection for many hours now and has been gradually spinning down today. It no longer meets the qualifications of a tropical cyclone, so this is the last advisory. The initial wind speed is set to 25 kt per the latest scatterometer pass.

The low is meandering this morning. It is expected to be picked up to the north-northeast by the next trough over the northeastern Atlantic, along with an increase in forward speed. The remnants of Theta should gradually lose strength due to strong shear, very dry air and little instability before dissipating in a day or two.

Additional information on this system can be found in High Seas Forecasts issued by the UK Met Office under WMO header FQNT21 EGRR and on the web at metoffice.gov.uk/weather/specialist-forecasts/coast-and-sea/high- seas-forecast/.


INIT 15/1500Z 31.5N 18.2W 25 KT 30 MPH...POST-TROPICAL 12H 16/0000Z 31.9N 18.1W 25 KT 30 MPH...POST-TROP/REMNT LOW 24H 16/1200Z 33.7N 17.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 36H 17/0000Z 36.5N 16.5W 20 KT 25 MPH...POST-TROP/REMNT LOW 48H 17/1200Z...DISSIPATED

$$ Forecaster Blake