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Expires:No;;811140
WTNT34 KNHC 092036
TCPAT4

BULLETIN
Post-Tropical Cyclone Debby Advisory Number  10
NWS National Hurricane Center Miami FL       AL042018
500 PM AST Thu Aug 09 2018

...DEBBY BECOMES POST-TROPICAL...
...LIKELY TO DISSIPATE TONIGHT...


SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...45.5N 40.5W
ABOUT 865 MI...1390 KM NW OF THE AZORES
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 23 MPH...37 KM/H
MINIMUM CENTRAL PRESSURE...1004 MB...29.65 INCHES


WATCHES AND WARNINGS
--------------------
There are no coastal watches or warnings in effect.


DISCUSSION AND OUTLOOK
----------------------
At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone Debby
was located near latitude 45.5 North, longitude 40.5 West. The
post-tropical cyclone is moving toward the northeast near 23 mph (37
km/h).  This general motion is expected to continue for the next
few hours until the cyclone dissipates later tonight.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts.
Little change in strength is forecast until Debby dissipates later
tonight.

Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center.

The estimated minimum central pressure is 1004 mb (29.65 inches).


HAZARDS AFFECTING LAND
----------------------
None.


NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on Debby.  Additional information can be found in High Seas
Forecasts issued by the National Weather Service, under AWIPS header
NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at
https://ocean.weather.gov/shtml/NFDHSFAT1.shtml.

$$
Forecaster Zelinsky



 

More information

Expires:No;;811144
WTNT44 KNHC 092036
TCDAT4

Post-Tropical Cyclone Debby Discussion Number  10
NWS National Hurricane Center Miami FL       AL042018
500 PM AST Thu Aug 09 2018

Debby has become post-tropical. The circulation of the cyclone has
become ill defined, and it is no longer producing enough organized
deep convection to be classified as a tropical cyclone.  Therefore,
Debby has become post-tropical, and this is the last advisory. The
cyclone is accelerating northeastward ahead of a shortwave trough,
and this should continue for the next few hours until Debby opens up
into a trough of low pressure and merges with a larger frontal
boundary later tonight.

Debby is likely still producing gale-force winds to the southeast
of its center, however all of the guidance indicates that these
winds will gradually decrease through early tomorrow.  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 available on the Web
at https://ocean.weather.gov/shtml/NFDHSFAT1.shtml.


FORECAST POSITIONS AND MAX WINDS

INIT  09/2100Z 45.5N  40.5W   35 KT  40 MPH...POST-TROPICAL
 12H  10/0600Z...DISSIPATED

$$
Forecaster Zelinsky



 
	

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