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Expires:No;;144384
WTNT34 KNHC 300838
TCPAT4

BULLETIN
Post-Tropical Cyclone Lee Advisory Number  49
NWS National Hurricane Center Miami FL       AL142017
500 AM AST Sat Sep 30 2017

...LEE BECOMES A POST-TROPICAL LOW OVER THE NORTH ATLANTIC...
...THIS IS THE LAST ADVISORY...


SUMMARY OF 500 AM AST...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...46.7N 35.6W
ABOUT 745 MI...1195 KM NNW OF THE AZORES
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NE OR 50 DEGREES AT 51 MPH...81 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES


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


DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 500 AM AST (0900 UTC), the center of Post-Tropical Cyclone Lee
was located near latitude 46.7 North, longitude 35.6 West.  Lee is
moving rapidly toward the northeast near 51 mph (81 km/h), and an
even faster northeastward motion is expected today before Lee
dissipates.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Lee is expected to degenerate into a trough of low pressure later
today.

Tropical-storm-force winds extend outward up to 150 miles (240 km)
from the center.

The estimated minimum central pressure is 998 mb (29.47 inches).


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


NEXT ADVISORY
-------------
This is the last public advisory issued by the National Hurricane
Center on this system.  Additional information on this system can be
found in High Seas Forecasts issued by Meteo France under WMO header
FQNT50 LFPW and in High Seas Forecasts issued by the UK Met Office
under WMO header FQNT21 EGRR.  These forecasts are available on the
web at http://www.meteofrance.com/previsions-meteo-marine/bulletin
and at http://www.metoffice.gov.uk/public/weather/marine-high-seas/.

$$
Forecaster Berg



 

More information

Expires:No;;144440
WTNT44 KNHC 300839
TCDAT4

Post-Tropical Cyclone Lee Discussion Number  49
NWS National Hurricane Center Miami FL       AL142017
500 AM AST Sat Sep 30 2017

Lee is now over water colder than 20 degrees Celsius and is being
blasted by 35 kt of west-northwesterly shear, and it has not been
producing deep convection for at least the past 12 hours.  The
cyclone has therefore become post tropical, and this will be the
last advisory.  Without any deep convection, subjective and
objective Dvorak numbers have decreased, and the initial intensity
is estimated to be 45 kt.

Lee continues to accelerate northeastward with an initial motion
estimate of 050/44 kt.  Continued acceleration is expected today,
although the global model fields indicate that Lee's circulation
will open up into a trough within the next 6 to 12 hours.  A
12-hour point is provided in the official forecast for continuity's
sake, but Lee will most likely have dissipated by then.

Additional information on this system can be found in High Seas
Forecasts issued by Meteo France under WMO header FQNT50 LFPW and in
High Seas Forecasts issued by the UK Met Office under WMO header
FQNT21 EGRR.  These forecasts are available on the web at
http://www.meteofrance.com/previsions-meteo-marine/bulletin and at
http://www.metoffice.gov.uk/public/weather/marine-high-seas/.

FORECAST POSITIONS AND MAX WINDS

INIT  30/0900Z 46.7N  35.6W   45 KT  50 MPH...POST-TROPICAL
 12H  30/1800Z 49.9N  24.6W   45 KT  50 MPH...POST-TROPICAL
 24H  01/0600Z...DISSIPATED

$$
Forecaster Berg



 
	

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