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WTNT44 KNHC 130834
TCDAT4

Post-Tropical Cyclone Eta Discussion Number 52
NWS National Hurricane Center Miami FL AL292020
400 AM EST Fri Nov 13 2020

While the cyclone is still generating a cluster of strong convection to the northeast of the center, satellite imagery, surface observations and scatterometer data indicate that Eta has merged with a baroclinic zone and become an extratropical cyclone off the southeastern coast of the United States. The scatterometer data showed vectors of 40-50 kt along a front or convergence zone northeast of the center, but these vectors were in the strong convective region and their reliability is uncertain. This, the initial intensity is held at a possibly conservative 40 kt. Eta is forecast to strengthen as a baroclinic low until the system is absorbed by another low pressure area in about 48 h.

The initial motion is 060/18. The post-tropical cyclone cyclone should continue this general motion with an increase in forward speed until it is absorbed.

This is the last advisory issued by the National Hurricane Center on Eta. 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 13/0900Z 33.3N 76.8W 40 KT 45 MPH...POST-TROP/EXTRATROP 12H 13/1800Z 35.0N 73.1W 40 KT 45 MPH...POST-TROP/EXTRATROP 24H 14/0600Z 37.9N 66.1W 45 KT 50 MPH...POST-TROP/EXTRATROP 36H 14/1800Z 41.1N 57.8W 45 KT 50 MPH...POST-TROP/EXTRATROP 48H 15/0600Z...ABSORBED BY AN EXTRATROPICAL LOW

$$ Forecaster Beven

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