Atlantic hurricane map

Thursday, Sep 20, 2018

Hurricane Florence

National Hurricane Center - Public Advisory for Atlantic wallet 1

  1. 825
    WTNT31 KNHC 160844
    TCPAT1

    BULLETIN
    Tropical Depression Florence Advisory Number 68
    NWS National Hurricane Center Miami FL AL062018
    500 AM EDT Sun Sep 16 2018

    ...FLORENCE WEAKENS TO A DEPRESSION BUT FLASH FLOODING AND MAJOR
    RIVER FLOODING WILL CONTINUE OVER A SIGNIFICANT PORTION OF THE
    CAROLINAS...


    SUMMARY OF 500 AM EDT...0900 UTC...INFORMATION
    ----------------------------------------------
    LOCATION...33.8N 81.4W
    ABOUT 20 MI...35 KM SW OF COLUMBIA SOUTH CAROLINA
    MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H
    PRESENT MOVEMENT...W OR 280 DEGREES AT 8 MPH...13 KM/H
    MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES


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

    The Tropical Storm Warning from South Santee River South Carolina to
    Surf City North Carolina is discontinued.

    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

    There are no coastal watches or warnings in effect.

    Interests in the southeastern and mid-Atlantic states should monitor
    the progress of Florence due to the heavy rainfall threat.


    DISCUSSION AND OUTLOOK
    ----------------------
    At 500 AM EDT (0900 UTC), the center of Tropical Depression Florence
    was located near latitude 33.8 North, longitude 81.4 West. The
    depression is moving toward the west near 8 mph (13 km/h). A turn
    toward the northwest with an increase in forward speed is expected
    today, followed by a turn toward the north and northeast with an
    additional increase in forward speed on Monday. On the forecast
    track, Florence's center will move across the western Carolinas
    today and then recurve over the Ohio Valley and Northeast U.S.
    Monday and Tuesday.

    Maximum sustained winds have decreased to near 35 mph (55 km/h) with
    higher gusts. Continued gradual weakening is forecast during the
    next couple of days.

    The estimated minimum central pressure is 1000 mb (29.53 inches).


    HAZARDS AFFECTING LAND
    ----------------------
    RAINFALL: Florence is expected to produce heavy and excessive
    rainfall in the following areas...

    Central and western North Carolina into far southwest Virginia...

    An additional 5 to 10 inches, with storm total accumulations of 15
    to 20 inches in western North Carolina. These rainfall amounts will
    produce catastrophic flash flooding, prolonged significant river
    flooding, and an elevated risk for landslides in western North
    Carolina and far southwest Virginia.

    Southern North Carolina into Northern South Carolina...

    An additional 4 to 6 inches, isolated 8 inches. This rainfall will
    result in additional flash flooding while also exacerbating the
    river flooding. Storm total accumulations of 30 to 40 inches in
    southeast North Carolina.

    West-central Virginia, north of Roanoke and west of
    Charlottesville...

    2 to 4 inches, isolated 6 inches. This rainfall will result in
    flash flooding and potentially lead to some river flooding.

    TORNADOES: A few tornadoes remain possible across North Carolina
    and eastern South Carolina today and tonight.

    SURF: Swells generated by Florence are affecting Bermuda, portions
    of the U.S. East Coast, and the northwestern and central Bahamas.
    These swells are likely to cause life-threatening surf and rip
    current conditions. Please consult products from your local weather
    office.


    NEXT ADVISORY
    -------------
    This is the last advisory issued by the National Hurricane Center on
    Florence. Future information on Florence can be found in Public
    Advisories issued by the Weather Prediction Center beginning at 11
    AM EDT, under AWIPS header TCPAT1, WMO header WTNT31 KWNH, and on
    the web at https://www.wpc.ncep.noaa.gov.


    $$
    Forecaster Pasch