• ADVISORY: TS Eta 30

    From Weather Alert@21:1/175 to All on Saturday, November 07, 2020 16:25:00
    426
    WTNT34 KNHC 072053
    TCPAT4

    BULLETIN
    Tropical Storm Eta Advisory Number 30
    NWS National Hurricane Center Miami FL AL292020
    400 PM EST Sat Nov 07 2020

    ...ETA MOVING AWAY FROM THE CAYMAN ISLANDS AND TOWARD THE COAST OF
    CENTRAL CUBA...
    ...HURRICANE AND STORM SURGE WATCHES ISSUED FOR SOUTH FLORIDA AND
    THE FLORIDA KEYS...

    SUMMARY OF 400 PM EST...2100 UTC...INFORMATION ----------------------------------------------
    LOCATION...20.4N 80.7W
    ABOUT 85 MI...135 KM NNE OF GRAND CAYMAN
    ABOUT 195 MI...310 KM WSW OF CAMAGUEY CUBA
    MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
    PRESENT MOVEMENT...NE OR 50 DEGREES AT 16 MPH...26 KM/H
    MINIMUM CENTRAL PRESSURE...994 MB...29.36 INCHES


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

    A Storm Surge Watch is in effect for the coast of southern Florida
    from Golden Beach to Bonita Beach, including Biscayne Bay, and for
    the Florida Keys from Ocean Reef to the Dry Tortugas, incuding
    Florida Bay.

    A Hurricane Watch is in effect for the coast of southern Florida
    from Deerfield Beach to Bonita Beach, and for the Florida Keys from
    Ocean Reef to the Dry Tortugas, including Florida Bay.

    A Tropical Storm Warning is in effect from north of Golden Beach to
    Jupiter Inlet, Florida, and west of Chokoloskee, Florida to Bonita
    Beach, Florida, including Lake Okeechobee.

    SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

    A Storm Surge Watch is in effect for...
    * Florida coast from Golden Beach to Bonita Beach, including
    Biscayne Bay
    * Florida Keys from Ocean Reef to the Dry Tortugas, including
    Florida Bay

    A Hurricane Watch is in effect for...
    * Florida coast from Deerfield Beach to Bonita Beach
    * Florida Keys from Ocean Reef to the Dry Tortugas, including
    Florida Bay

    A Tropical Storm Warning is in effect for...
    * The Cayman Islands
    * The Cuban provinces of Camaguey, Ciego de Avila, Sancti Spiritus,
    Villa Clara, Cienfuegos, and Matanzas
    * Northwestern Bahamas, including the Abacos, Andros Island,
    Berry Islands, Bimini, Eleuthera, Grand Bahama Island, and New
    Providence
    * Florida coast from Jupiter Inlet to Bonita Beach, including
    Florida Bay
    * Florida Keys from Ocean Reef to the Dry Tortugas
    * Lake Okeechobee

    A Tropical Storm Watch is in effect for...
    * The Cuban provinces of La Habana, Artemisa, Mayabeque, Pinar del
    Rio, and the Isle of Youth
    * Florida coast from north of Jupiter Inlet to the Brevard/Volusia
    county line
    * Florida coast from north of Bonita Beach to Englewood

    A Storm Surge Watch means there is a possibility of life-
    threatening inundation, from rising water moving inland from the
    coastline, in the indicated locations during the next 48 hours.
    For a depiction of areas at risk, please see the National Weather
    Service Storm Surge Watch/Warning Graphic, available at
    hurricanes.gov.

    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.

    A Tropical Storm Watch means that tropical storm conditions are
    possible within the watch area, generally within 48 hours.

    Interests elsewhere in Cuba and the Florida peninsula should
    monitor the progress of this system as additional Tropical Storm
    Watches or Warnings could be required for some of these areas later
    today.

    For storm information specific to your area in the United
    States, including possible inland watches and warnings, please
    monitor products issued by your local National Weather Service
    forecast office. For storm information specific to your area
    outside of the United States, please monitor products issued by
    your national meteorological service.

    DISCUSSION AND OUTLOOK
    ----------------------
    At 400 PM EST (2100 UTC), the center of Tropical Storm Eta was
    located near latitude 20.4 North, longitude 80.7 West. Eta is moving
    toward the northeast near 16 mph (26 km/h) and this motion is
    expected to continue tonight. A turn toward the north and
    northwest at a slower forward speed is expected on Sunday and Sunday
    night, followed by a westward motion on Monday. On the forecast
    track, the center of Eta will cross central Cuba tonight, approach
    south Florida and the Florida Keys on Sunday, and pass near or over
    south Florida and the Florida Keys Sunday night and Monday.

    Maximum sustained winds are near 60 mph (95 km/h) with higher gusts.
    Some strengthening is possible through Sunday night, and Eta could
    be near hurricane strength as it approaches Florida.

    Tropical-storm-force winds extend outward up to 105 miles (165 km)
    from the center.

    The estimated minimum central pressure is 994 mb (29.36 inches).

    HAZARDS AFFECTING LAND
    ----------------------
    Key messages for Eta can be found in the Tropical Cyclone Discussion
    under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the
    web at www.hurricanes.gov/text/MIATCDAT4.shtml.

    RAINFALL: Eta is expected to produce the following rainfall
    amounts through Thursday morning:

    Jamaica: An additional 2 to 4 inches (50 to 125 mm), isolated
    maximum storm totals of 15 inches (380 mm).

    The Cayman Islands into portions of Cuba: an additional 5 to 10
    inches (200 to 400 mm), isolated maximum storm totals of 25 inches
    (650 mm).

    The Bahamas and portions of the central and southern Florida
    peninsula, including the Keys: 6 to 12 inches (150 to 300 mm),
    isolated maximum totals of 18 inches (450 mm).

    Significant, life-threatening flash and river flooding will be
    possible in Cuba, along with landslides in areas of higher terrain.
    Flash and urban flooding will also be possible for the Cayman
    Islands, Jamaica, the Bahamas, and Southern Florida. Isolated minor
    river flooding is also possible for Central Florida.

    STORM SURGE: The combination of a dangerous storm surge and the
    tide will cause normally dry areas near the coast to be flooded by
    rising waters moving inland from the shoreline. The water could
    reach the following heights above ground somewhere in the indicated
    areas if the peak surge occurs at the time of high tide...

    Bonita Beach, FL to Golden Beach, FL including Biscayne Bay...2-4 ft
    Florida Keys from Ocean Reef to the Dry Tortugas including Florida
    Bay...2-4 ft
    Flagler/Volusia County Line to Altamaha Sound...2-3 ft
    Golden Beach to Flagler/Volusia County Line...1-2 ft

    The deepest water will occur along the immediate coast in areas of
    onshore winds, where the surge will be accompanied by large and
    dangerous waves. Surge-related flooding depends on the relative
    timing of the surge and the tidal cycle, and can vary greatly over
    short distances. For information specific to your area, please see
    products issued by your local National Weather Service forecast
    office.

    WIND: Tropical storm conditions are expected in the Cayman Islands
    for a few more hours, as well as in the warning areas in Cuba
    tonight and Sunday, in the northwestern Bahamas on Sunday, and in
    south Florida and the Florida Keys late Sunday and Sunday night.
    Hurricane conditions are possible in the hurricane watch area in
    Florida Sunday night and Monday. Tropical storm conditions are
    possible in the tropical storm watch area in Cuba tonight and
    Sunday and in the watch area in Florida by late Sunday or early
    Monday.

    TORNADOES: A tornado or two may occur Sunday evening and Sunday
    night over south Florida and the Keys.

    SURF: Swells generated by Eta are expected to spread northeastward
    and affect the Cayman Islands, Jamaica, the southern coast of
    Cuba, the northwestern Bahamas, and southern Florida and the
    Florida Keys during the next couple of days. These swells are
    likely to cause life-threatening surf and rip current conditions.
    Please consult products from your local weather office.

    NEXT ADVISORY
    -------------
    Next intermediate advisory at 700 PM EST.
    Next complete advisory at 1000 PM EST.

    $$
    Forecaster Beven
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