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000
WTNT43 KNHC 061435
TCDAT3

POST-TROPICAL CYCLONE BERTHA DISCUSSION NUMBER 23
NWS NATIONAL HURRICANE CENTER MIAMI FL AL032014
1100 AM AST WED AUG 06 2014

Satellite images indicate that Bertha has become associated with a frontal system and has acquired extratropical characteristics. The low-level center is devoid of deep convection and is on the cold air side of a frontal cloud band or trough extending from Nova Scotia southwestward to the Bahamas. In addition, there is a strong westerly upper-level jet over the system.

The low is moving toward the northeast or 055 degrees at 27 knots steered by the mid-latitude westerlies. Most of the global models keep the post-tropical cyclone moving rapidly northeastward and then eastward over the North Atlantic.

This is the last advisory issued by the NHC on Bertha. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service...under AWIPS header NFDHSFAT1 and WMO header FZNT01 KWBC.



FORECAST POSITIONS AND MAX WINDS

INIT 06/1500Z 40.2N 62.7W 45 KT 50 MPH...POST-TROP/EXTRATROP 12H 07/0000Z 42.3N 58.1W 45 KT 50 MPH...POST-TROP/EXTRATROP 24H 07/1200Z 45.0N 52.5W 40 KT 45 MPH...POST-TROP/EXTRATROP 36H 08/0000Z 47.5N 46.0W 40 KT 45 MPH...POST-TROP/EXTRATROP 48H 08/1200Z 48.5N 40.0W 40 KT 45 MPH...POST-TROP/EXTRATROP 72H 09/1200Z 48.0N 26.0W 35 KT 40 MPH...POST-TROP/EXTRATROP 96H 10/1200Z 48.5N 8.5W 35 KT 40 MPH...POST-TROP/EXTRATROP 120H 11/1200Z...Absorbed

$$ Forecaster Avila



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