• PTC Chantal Final Advisor

    From Mike Powell@1:2320/105 to All on Tue Jul 8 08:42:00 2025
    023
    WTNT33 KWNH 080227
    TCPAT3

    BULLETIN
    Post-Tropical Cyclone Chantal Advisory Number 14
    NWS Weather Prediction Center College Park MD AL032025
    1100 PM EDT Mon Jul 07 2025

    ...THE FLASH FLOOD THREAT FROM POST-TROPICAL CYCLONE CHANTAL
    HAS WANED...


    SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION -----------------------------------------------
    LOCATION...39.6N 73.6W
    ABOUT 85 MI...135 KM NE OF CAPE MAY NEW JERSEY
    ABOUT 220 MI...355 KM WSW OF NANTUCKET MASSACHUSETTS
    MAXIMUM SUSTAINED WINDS...25 MPH...35 KM/H
    PRESENT MOVEMENT...NE OR 55 DEGREES AT 25 MPH...41 KM/H
    MINIMUM CENTRAL PRESSURE...1011 MB...29.86 INCHES


    WATCHES AND WARNINGS
    --------------------
    There are no flood watches in effect.


    DISCUSSION AND OUTLOOK
    ----------------------
    At 1100 PM EDT (0300 UTC), the center of Post-Tropical Cyclone
    Chantal was located near latitude 39.6 North, longitude 73.6 West.
    The post-tropical cyclone is moving toward the northeast near 25 mph
    (41 km/h) and this motion is expected to continue with an increase
    in forward speed Monday night into Tuesday.

    Maximum sustained winds are near 25 mph (35 km/h) with higher gusts.
    Due to its forward motion and modest wind field, the cyclone's wind
    field is becoming less defined. Post-Tropical Cyclone Chantal
    could open up into a trough of low pressure by Tuesday morning.

    The estimated minimum central pressure is 1011 mb (29.86 inches).


    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Post-Tropical Cyclone Chantal can be found in the
    Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO
    header WTNT43 KNHC.

    RAINFALL: Post-Tropical Cyclone Chantal could produce an
    additional inch of rain across portions of New Jersey and Long
    Island Monday tonight into Tuesday morning, with an inch or two of
    rain being possible across portions of Cape Cod, Martha's Vineyard,
    and Nantucket early Tuesday morning. Any flash flooding would be
    isolated.

    For a complete depiction of forecast rainfall and flash flooding
    associated with Post-Tropical Cyclone Chantal, please see the
    National Weather Service Storm Total Rainfall Graphic, available at hurricanes.gov/graphics_at3.shtml?rainqpf

    For a list of rainfall observations (and wind reports) associated
    this storm, see the companion storm summary at WBCSCCNS4 with the
    WMO header ACUS44 KWBC or at the following link: http://www.wpc.ncep.noaa.gov/discussions/nfdscc4.html .

    SURF: Life-threatening surf and rip current conditions are expected
    to continue at beaches along the U.S. east coast from northeastern
    Florida to the Mid-Atlantic states during the next day or so.

    A depiction of rip current risk for the United States can be found
    at: hurricanes.gov/graphics_at3.shtml?ripCurrents


    NEXT ADVISORY
    -------------
    This is the last public advisory issued by the Weather Prediction
    Center on this system.

    $$
    Forecaster Roth
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