Hurricane ida


Florida News weather

Mass Devastation… Life Thratening Storm Surge… “Catastrophic” Wind Damage Expected…

Hurricane Ida forecast track as of late Saturday morning, August 28, 2021.


BOCA RATON, FL ( (Copyright © 2021 MetroDesk Media, LLC) — Hurricane Ida is expected to rapidly intensify over the next several hours as it prepares to strike Louisiana with winds hitting 130 mph. The National Hurricane Center expects “catastrophic wind damage.”

This is the latest update from the NHC:

NWS National Hurricane Center Miami FL AL092021
1000 AM CDT Sat Aug 28 2021

The satellite presentation of Ida has continued to improve this
morning with the center embedded within a fairly symmetric Central
Dense Overcast and hints of the eye in both visible in infrared
satellite imagery. Earlier microwave imagery revealed a well-
defined low- to mid-level eye and excellent spiral banding over the
northern semicircle. Both NOAA and Air Force Reserve hurricane
hunter aircraft, somewhat surprisingly, have not found a
significantly deepening tropical cyclone yet, but given the very
recent increase in organization and structure, the winds are likely
to catch up to the satellite appearance very soon. Using the latest
flight-level and SFMR wind data from the aircraft and satellite
intensity estimates the initial wind speed remains 75 kt for this
advisory. The aircraft data does indicate that Ida’s wind field has
expanded, and the NHC wind radii have been adjusted accordingly.

Given the improved inner-core structure Ida appears poised to
rapidly intensify during the next 12 to 24 hours as it remains
within a favorable environment of low vertical wind shear and over
warm water. Although the interpolated intensity guidance has
lowered somewhat due to the fact that Ida has not significantly
strengthened yet, the explicit forecasts from the dynamical models
continue to support significant deepening, and the latest runs of
the HWRF and HMON models indicate Ida will reach Category 4 strength
before landfall. The new NHC intensity forecast calls for rapid
intensification to Category 4 strength during the next 24 hours.
After that time, fluctuations in intensity are possible due to
eyewall replacement cycles as Ida approaches the northern Gulf
coast. After landfall, rapid weakening is expected and Ida is
forecast to weaken to a tropical depression by Monday night, and
become a post-tropical cyclone as it moves over the Tennessee Valley
by mid-week.

Ida has been moving steadily northwestward or 315/14 kt. A deep
layer ridge near the southeastern United States coast is forecast to
shift westward during the next day or so, and this should continue
to steer Ida northwestward through landfall on Sunday. The track
guidance remains in remarkably good agreement through 36 hours, and
the new NHC track forecast is essentially unchanged during that
time, and continues to indicate that Ida will reach the coast of
Louisiana on Sunday. After landfall, Ida will be near the western
extent of the ridge and should turn northward and then northeastward
as it recurves into the southern portion of the mid-latitude
westerlies. The track guidance has shifted slightly westward beyond
48 hours, and the track forecast over the southern U.S. and the
Tennessee Valley has been adjusted accordingly. Users are again
reminded to not focus on the exact details of the track forecast as
storm surge, wind, and rainfall impacts will extend far from the
center. Wind and rainfall impacts will also penetrate inland
through early next week after Ida makes landfall.

Key Messages:

  1. There is a danger of life-threatening storm surge inundation
    Sunday along the coasts of Louisiana and Mississippi within the
    Storm Surge Warning area. Extremely life-threatening inundation of
    9 feet or greater above ground level is possible somewhere within
    the area from Morgan City, Louisiana, to the coast of Mississippi.
    Overtopping of local levees outside of the Hurricane and Storm
    Damage Risk Reduction System is possible where local inundation
    values may be higher. Interests throughout the warning area should
    follow any advice given by local officials.
  2. Ida is expected to be an extremely dangerous major hurricane when
    it reaches the coast of Louisiana. Hurricane-force winds are
    expected Sunday in portions of the Hurricane Warning area along the
    Louisiana coast, including metropolitan New Orleans, with
    potentially catastrophic wind damage possible where the core of Ida
    moves onshore. Actions to protect life and property should be rushed
    to completion today in the warning area.
  3. Ida is likely to produce heavy rainfall Sunday and Monday across
    the central Gulf Coast from southeast Louisiana to coastal
    Mississippi, resulting in life-threatening flash and urban flooding
    and significant river flooding impacts. As Ida moves inland,
    significant flooding impacts are likely across portions of the Lower
    Mississippi and Tennessee Valleys Monday and Tuesday.


INIT 28/1500Z 24.8N 86.1W 75 KT 85 MPH
12H 29/0000Z 26.3N 87.9W 100 KT 115 MPH
24H 29/1200Z 28.0N 89.8W 115 KT 130 MPH
36H 30/0000Z 29.4N 91.0W 115 KT 130 MPH…INLAND
48H 30/1200Z 31.0N 91.5W 60 KT 70 MPH…INLAND
60H 31/0000Z 32.7N 91.0W 30 KT 35 MPH…INLAND
72H 31/1200Z 34.4N 89.8W 25 KT 30 MPH…INLAND
96H 01/1200Z 36.8N 85.3W 20 KT 25 MPH…POST-TROP/INLAND
120H 02/1200Z 37.9N 79.9W 20 KT 25 MPH…POST-TROP/INLAND

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