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BULLETIN
Hurricane Humberto Advisory Number  24
NWS National Hurricane Center Miami FL       AL092019
1100 AM AST Wed Sep 18 2019

...AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS HUMBERTO
STRONGER AS THE MAJOR HURRICANE THREATENS BERMUDA...
...LARGE HURRICANE-FORCE WIND FIELD CONTINUES TO EXPAND...


SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...32.2N 68.1W
ABOUT 195 MI...310 KM W OF BERMUDA
MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H
PRESENT MOVEMENT...ENE OR 65 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...952 MB...28.12 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...
* Bermuda

For storm information specific to your area, please monitor
products issued by your national meteorological service.


DISCUSSION AND OUTLOOK
----------------------
At 1100 AM AST (1500 UTC), the center of Hurricane Humberto was
located and Air Force Reserve Hurricane Hunter aircraft near
latitude 32.2 North, longitude 68.1 West.  Humberto is now moving
toward the east-northeast near 16 mph (26 km/h).  This general
motion with an additional increase in forward speed is expected
through early Thursday, followed by a northeastward to north-
northeastward motion through Friday.  On the forecast track, the
core of Humberto is expected to pass just to the northwest and north
of Bermuda later tonight.

Reports from the reconnaissance aircraft indicate that maximum
sustained winds have increased to near 120 mph (195 km/h) with
higher gusts. Humberto is a category 3 hurricane on the Saffir-
Simpson Hurricane Wind Scale.  Some fluctuations in intensity
are likely during the next day or so, but Humberto should remain a
powerful hurricane through early Thursday while it passes close to
Bermuda.  A steady weakening trend should begin later on Thursday.

Humberto is a large hurricane and continues to grow in size.
Hurricane-force winds now extend outward up to 105 miles (165 km)
from the center and tropical-storm-force winds extend outward up to
195 miles (315 km) based on reports from the Hurricane Hunter
aircraft.

The minimum central pressure recently measured by the reconnaissance
aircraft was 952 mb (28.12 inches).


HAZARDS AFFECTING LAND
----------------------
WIND:  Hurricane conditions are expected to reach Bermuda this
evening and continue into early Thursday morning.  Winds are
expected to reach tropical-storm strength later this afternoon,
making outside preparations difficult or dangerous. Preparations to
protect life and property should be rushed to completion.

RAINFALL:  Humberto may bring periods of heavy rain to Bermuda
through Thursday, with rainfall accumulations of 2 to 4 inches with
maximum amounts of 6 inches expected.

SURF:  Large swells generated by Humberto will increase along the
coast of Bermuda today.  Dangerous breaking waves, especially
along south-facing beaches, will be possible Wednesday night into
Thursday, and could cause coastal flooding.  Wave heights exceeding
30 feet have already been reported by an offshore NOAA buoy.

Swells will continue to affect the northwestern Bahamas and the
southeastern coast of the United States from east-central Florida to
North Carolina during the next couple of days.

These swells could cause life-threatening surf and rip current
conditions.  Please consult products from your local weather office
and the Bermuda Weather Service.

STORM SURGE:  Storm surge and breaking waves could raise water
levels by 1 to 3 feet above normal tide levels along the immediate
southern coast of Bermuda.


NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM AST.
Next complete advisory at 500 PM AST.

$$
Forecaster Stewart

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