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Expires:No;;576544
WTNT33 KNHC 101443
TCPAT3

BULLETIN
Post-Tropical Cyclone Gabrielle Advisory Number  29
NWS National Hurricane Center Miami FL   AL082019
Issued by the NWS Weather Prediction Center College Park MD
1100 AM AST Tue Sep 10 2019

...GABRIELLE BECOMES AN EXTRATROPICAL CYCLONE...
...THIS IS THE FINAL ADVISORY...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...43.9N 37.8W
ABOUT 695 MI...1115 KM NW OF THE AZORES
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...NE OR 55 DEGREES AT 29 MPH...46 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES


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


DISCUSSION AND OUTLOOK
----------------------
At 1100 AM AST (1500 UTC), the center of Post-Tropical Cyclone
Gabrielle was located near latitude 43.9 North, longitude 37.8 West.
The post-tropical cyclone is moving toward the northeast near 29 mph
(46 km/h), and this general motion with an increase in forward
speed is expected over the next couple of days.

Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Gabrielle is expected to weaken over the next two days and dissipate
over the far North Atlantic west of the British Isles on Thursday.

Tropical-storm-force winds extend outward up to 125 miles (205 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 the National Weather Service,
under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available
on the Web at http://ocean.weather.gov/shtml/NFDHSFAT1.shtml

$$
Forecaster Hamrick/Blake



 

More information

Expires:No;;576547
WTNT43 KNHC 101444
TCDAT3

Post-Tropical Cyclone Gabrielle Discussion Number  29
NWS National Hurricane Center Miami FL       AL082019
Issued by the NWS Weather Prediction Center College Park MD
1100 AM AST Tue Sep 10 2019

Gabrielle has now completed its transition to an extratropical
cyclone this morning based on the latest GOES-16 satellite imagery.
The center of the storm has now become exposed with convection
displaced to the north of the center, and a well-defined baroclinic
zone has become established in association with the low center.
Thus Gabrielle is now an extratropical low, and this is the latest
advisory on this system.  The intensity remains 45 knots based on
scatterometer data and TAFB Dvorak intensity estimates. Models are
in excellent agreement that the cyclone will move northeastward and
slowly weaken through midweek with the system evolving into an open
trough and dissipating beyond 36 hours prior to reaching the British
Isles.


FORECAST POSITIONS AND MAX WINDS

INIT  10/1500Z 43.9N  37.8W   45 KT  50 MPH...POST-TROPICAL
 12H  11/0000Z 45.9N  33.4W   40 KT  45 MPH...POST-TROP/EXTRATROP
 24H  11/1200Z 49.2N  25.7W   35 KT  40 MPH...POST-TROP/EXTRATROP
 36H  12/0000Z 52.5N  16.5W   25 KT  30 MPH...POST-TROP/EXTRATROP
 48H  12/1200Z...DISSIPATED

$$
Forecaster Hamrick/Blake



 
	

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