• ADVISORY: Tropical Storm Melissa Intermediate Advisory Number 15a

    From COD Weather Processor@1:2320/105 to wx-atlan@lists.illinois.edu on Saturday, October 25, 2025 05:41:40
    451
    WTNT33 KNHC 250541
    TCPAT3

    BULLETIN
    Tropical Storm Melissa Intermediate Advisory Number 15A
    NWS National Hurricane Center Miami FL AL132025
    200 AM EDT Sat Oct 25 2025

    ...AIR FORCE HURRICANE HUNTER DATA SUGGEST MELISSA IS ALMOST A
    HURRICANE...
    ...LIFE-THREATENING AND CATASTROPHIC FLASH FLOODING AND LANDSLIDES
    EXPECTED IN PORTIONS OF SOUTHERN HISPANIOLA AND JAMAICA THROUGH THE
    WEEKEND...


    SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ----------------------------------------------
    LOCATION...16.3N 74.9W
    ABOUT 170 MI...275 KM SE OF KINGSTON JAMAICA
    ABOUT 235 MI...375 KM SW OF PORT AU PRINCE HAITI
    MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
    PRESENT MOVEMENT...NW OR 315 DEGREES AT 3 MPH...6 KM/H
    MINIMUM CENTRAL PRESSURE...986 MB...29.12 INCHES


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

    None.

    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

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

    A Hurricane Watch is in effect for...
    * Southwestern peninsula of Haiti from the border with the
    Dominican Republic to Port-Au-Prince

    A Tropical Storm Warning in effect for...
    * Southwestern peninsula of Haiti from the border with the
    Dominican Republic to Port-Au-Prince

    A Hurricane Warning means that hurricane conditions are expected
    somewhere within the warning area. A warning is typically issued
    36 hours before the anticipated first occurrence of
    tropical-storm-force winds, conditions that make outside
    preparations difficult or dangerous. Preparations to protect life
    and property should be rushed to completion.

    A Hurricane Watch means that hurricane conditions are possible
    within the watch area. A watch is typically issued 48 hours before
    the anticipated first occurrence of tropical-storm-force winds,
    conditions that make outside preparations difficult or dangerous.

    A Tropical Storm Warning means that tropical storm conditions are
    expected somewhere within the warning area within 36 hours.

    Interests elsewhere in Haiti, the Dominican Republic, and eastern
    Cuba, the Bahamas, and the Turks and Caicos Islands should monitor
    the progress of Melissa. Watches could be required for portions of
    eastern Cuba later today.

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


    DISCUSSION AND OUTLOOK
    ----------------------
    At 200 AM EDT (0600 UTC), the center of Tropical Storm Melissa was
    located near latitude 16.3 North, longitude 74.9 West. Melissa is
    moving toward the northwest near 3 mph (6 km/h). A turn to the west
    is forecast today, and this general motion is expected to continue
    through Monday. A turn to the north and northeast is forecast on
    Tuesday and Wednesday. On the forecast track, the center of Melissa
    is expected to move near or over Jamaica during the weekend and
    early next week, and it could be near or over eastern Cuba by the
    middle of next week.

    Maximum sustained winds have increased to near 70 mph (110 km/h)
    with higher gusts. Rapid intensification is expected to begin soon.
    Melissa is forecast to become a hurricane today and a major
    hurricane by Sunday.

    Tropical-storm-force winds extend outward up to 140 miles (220 km)
    from the center.

    The minimum central pressure based on Air Force Reserve Hurricane
    Hunter dropsonde data is 986 mb (29.12 inches).


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

    WIND: Hurricane conditions are expected in the warning area in
    Jamaica beginning Sunday, with tropical storm conditions beginning
    later today. Hurricane conditions are possible within the watch
    area in Haiti later this weekend, with tropical storm conditions
    expected to begin today.

    RAINFALL: Melissa is expected to bring total rainfall of 15 to 25
    inches to portions of southern Hispaniola and Jamaica through
    Tuesday, with local maxima of 35 inches possible across the Tiburon
    Peninsula of Haiti. Additional heavy rainfall is likely beyond
    Tuesday; uncertainty at that time range precludes exact storm
    totals. Potential catastrophic flash flooding and landslides are
    possible across portions of Jamaica and the southern Dominican
    Republic, while catastrophic flash flooding is anticipated in
    southern Haiti.

    For eastern Cuba, total rainfall of 4 to 8 inches, with local
    amounts to 12 inches, are possible into Tuesday. Additional heavy
    rainfall is likely beyond Tuesday; uncertainty at that time range
    precludes exact storm totals.

    For a complete depiction of forecast rainfall associated with
    Melissa, please see the National Weather Service Storm Total
    Rainfall Graphic, available at
    hurricanes.gov/graphics_at3.shtml?rainqpf

    STORM SURGE: Minor coastal flooding is likely along the coast of
    Jamaica starting today in areas of onshore winds as tropical storm
    conditions begin to reach the area.

    However, there is a risk of a more life-threatening storm surge,
    especially along the south coast of Jamaica, later in the
    weekend or early next week. Peak storm surge heights could reach 5
    to 10 feet above ground level, near and to the east of where the
    center of Melissa makes landfall. This storm surge will be
    accompanied by large and destructive waves.

    SURF: Swells generated by Melissa are expected to affect portions
    of Hispaniola, Jamaica, and eastern Cuba during the next several
    days. Please consult products from your local weather office.


    NEXT ADVISORY
    -------------
    Next complete advisory at 500 AM EDT.

    $$
    Forecaster Berg/Hagen


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