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Post-Tropical Cyclone BERTHA Forecast Discussion


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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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Page last modified: Wednesday, 06-Aug-2014 14:35:18 UTC