Florence: 11 a.m. Thursday

by | September 13, 2018 10:52 am

Last Updated: September 13, 2018 at 10:55 am

NWS National Hurricane Center Miami FL       AL062018
1100 AM EDT Thu Sep 13 2018

...HEAVY RAINBANDS WITH TROPICAL-STORM-FORCE WINDS SPREADING ACROSS
THE OUTER BANKS AND COASTAL SOUTHEASTERN NORTH CAROLINA...
...LIFE-THREATENING STORM SURGE AND RAINFALL EXPECTED...


SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
-----------------------------------------------
LOCATION...33.4N 75.5W
ABOUT 145 MI...230 KM ESE OF WILMINGTON NORTH CAROLINA
ABOUT 195 MI...315 KM E OF MYRTLE BEACH SOUTH CAROLINA
MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...955 MB...28.20 INCHES


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

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for...
* South Santee River South Carolina to Duck North Carolina
* Albemarle and Pamlico Sounds, including the Neuse and Pamlico
Rivers

A Storm Surge Watch is in effect for...
* Edisto Beach South Carolina to South Santee River South Carolina
* North of Duck North Carolina to the North Carolina/Virginia border

A Hurricane Warning is in effect for...
* South Santee River South Carolina to Duck North Carolina
* Albemarle and Pamlico Sounds

A Hurricane Watch is in effect for...
* Edisto Beach South Carolina to South Santee River South Carolina

A Tropical Storm Warning is in effect for...
* North of Duck North Carolina to Cape Charles Light Virginia
* Chesapeake Bay south of New Point Comfort

Interests elsewhere in the southeastern and mid-Atlantic states
should monitor the progress of Florence.
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM EDT (1500 UTC), data from an Air Force Reserve Unit
Hurricane Hunter aircraft and NOAA Doppler weather radars from
indicate that Florence was located near latitude 33.4 North,
longitude 75.5 West.  Florence is moving toward the northwest near
10 mph (17 km/h).  This general motion, accompanied by a further
decrease in forward speed, is expected to continue through today. A
turn to the west-northwest and west at an even slower forward speed
is expected tonight and Friday, and a slow west-southwestward motion
is forecast Friday night and Saturday.  On the forecast track, the
center of Florence will approach the coasts of North and South
Carolina later today, then move near or over the coast of southern
North Carolina and northeastern South Carolina in the hurricane
warning area tonight and Friday. A slow motion across portions of
eastern South Carolina is forecast Friday night through Saturday
night.

Data from the aircraft and Doppler weather radars indicate that
maximum sustained winds have decreased to near 105 mph (165 km/h)
with higher gusts. Little change in strength is expected before the
center reaches the coast, with weakening expected after the center
moves inland.

Florence is a large hurricane. Hurricane-force winds extend outward
up to 80 miles (130 km) from the center and tropical-storm-force
winds extend outward up to 195 miles (315 km). NOAA Buoy 41025,
located near Diamond Shoals, North Carolina, recently reported a
sustained wind of 54 mph (87 km/h).

The latest minimum central pressure based on data from the aircraft
is 955 mb (28.20 inches).

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