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BULLETIN
Tropical Storm Sebastien Advisory Number  18
NWS National Hurricane Center Miami FL       AL202019
500 PM AST Sat Nov 23 2019

...SEBASTIEN GALLOPING QUICKLY NORTHEASTWARD...


SUMMARY OF 500 PM AST...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...32.4N 45.4W
ABOUT 1105 MI...1780 KM WSW OF THE AZORES
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...NE OR 45 DEGREES AT 28 MPH...44 KM/H
MINIMUM CENTRAL PRESSURE...997 MB...29.44 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 Tropical Storm Sebastien was
located near latitude 32.4 North, longitude 45.4 West. Sebastien is
moving quickly toward the northeast near 28 mph (44 km/h). A fast
northeastward motion is expected for the next couple of days.

Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts. Little change in the maximum winds is expected during the
next couple of days. Sebastien is forecast to become post-tropical
on Sunday and dissipate early next week.

Tropical-storm-force winds extend outward up to 90 miles (150 km)
from the center.

The estimated minimum central pressure is 997 mb (29.44 inches).


HAZARDS AFFECTING LAND
----------------------
WIND AND RAIN: Regardless of its status, Sebastien or its remnants
are expected to bring gusty winds and rain to the Azores beginning
Sunday. Please see products issued by the Portuguese Institute for
the Sea and the Atmosphere (IPMA) for more information.

SURF:  Swells generated by Sebastien are expected to reach the
Azores early next week. These swells are likely to cause
life-threatening surf and rip current conditions.


NEXT ADVISORY
-------------
Next complete advisory at 1100 PM AST.

$$
Forecaster Zelinsky

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