[Tropical] Hurricane Local Statement

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Hurricane Ida Local Statement Advisory Number 10
National Weather Service New Orleans LA  AL092021
437 PM CDT Sat Aug 28 2021

This product covers Southeast Louisiana and South Mississippi

**IDA CONTINUES TO STRENGTHEN AS IT MOVES ACROSS THE GULF OF MEXICO**


NEW INFORMATION
---------------

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Storm Surge Warning and Hurricane Warning are in effect for
      Ascension, Assumption, Eastern Orleans, Iberville, Livingston,
      Lower Jefferson, Lower Lafourche, Lower Plaquemines, Lower St.
      Bernard, Lower Terrebonne, Northwest St. Tammany, Southeast St.
      Tammany, Southern Tangipahoa, St. Charles, St. James, St. John
      The Baptist, Upper Jefferson, Upper Lafourche, Upper
      Plaquemines, Upper St. Bernard, and Upper Terrebonne
    - A Storm Surge Warning and Tropical Storm Warning are in effect
      for Hancock, Harrison, and Jackson
    - A Hurricane Warning is in effect for East Baton Rouge, East
      Feliciana, Northern Tangipahoa, Pointe Coupee, St. Helena,
      Washington, West Baton Rouge, West Feliciana, and Western
      Orleans
    - A Tropical Storm Warning is in effect for Amite, Pearl River,
      Pike, Walthall, and Wilkinson

* STORM INFORMATION:
    - About 330 miles southeast of New Orleans LA or about 320 miles
      southeast of Houma LA
    - 26.2N 87.0W
    - Storm Intensity 105 mph
    - Movement Northwest or 320 degrees at 16 mph

SITUATION OVERVIEW
------------------

Hurricane Ida is in the central Gulf of Mexico and continues to
strengthen as it moves to the northwest. Ida is expected
to make landfall as a major category four hurricane along the
southeast Louisiana coast Sunday bringing life-threatening storm surge
flooding, damaging winds, and flash flooding to portions of Southeast
Louisiana and Southwest and Coastal Mississippi. Conditions are
currently expected to deteriorate tonight into Sunday, so all
residents should rush preparations to completion by this evening
for this storm. Remember, if your local officials order an
evacauation, leave!

POTENTIAL IMPACTS
-----------------

* SURGE:
Protect against life-threatening surge having possible catastrophic
impacts across all of coastal southeast Louisiana and portions of
coastal Mississippi west of Biloxi. These life-threatening impacts
are expected to occur Sunday into Sunday night. Potential impacts in
this area
include:
    - Widespread deep inundation, with storm surge flooding greatly
      accentuated by powerful battering waves. Structural damage to
      buildings, with many washing away. Damage greatly compounded
      from considerable floating debris. Locations may be
      uninhabitable for an extended period.
    - Near-shore escape routes and secondary roads washed out or
      severely flooded. Flood control systems and barriers may become
      stressed.
    - Extreme beach erosion. New shoreline cuts possible.
    - Massive damage to marinas, docks, boardwalks, and piers.
      Numerous small craft broken away from moorings with many lifted
      onshore and stranded.

Also, protect against life-threatening surge having possible
significant to devastating impacts across portions of coastal
Mississippi east of Biloxi and along the shores of Lake Pontchartrain
outside of the hurricane levee protection and Lake Maurepas.  These
life-threatening impacts are expected to occur Sunday into Sunday
night.

* WIND:
Protect against life-threatening wind having possible devastating
impacts across portions of Southeast Louisiana including metro Baton
Rouge, western portions of metro New Orleans, and the Houma
metropolitan area. These life-threatening wind impacts are expected
to begin as early as late tonight along the Louisiana coast and then
spread inland to the New Orleans, Houma, and Baton Rouge metro areas
on Sunday
Potential impacts in this area include:
    - Structural damage to sturdy buildings, some with complete roof
      and wall failures. Complete destruction of mobile homes. Damage
      greatly accentuated by large airborne projectiles. Locations
      may be uninhabitable for weeks or months.
    - Numerous large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Many roads impassable from large debris, and more within urban
      or heavily wooded places. Many bridges, causeways, and access
      routes impassable.
    - Widespread power and communications outages.

Also, protect against life-threatening wind having possible limited
to extensive impacts across portions of Southeast Louisiana to the
east of the I-55 corridor including eastern portions of metro New
Orleans and the Northshore as well as all of Coastal and Southwest
Mississippi.  These life-threatening wind impacts are expected to
occur as early as Sunday.

* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
devastating impacts across most of Southeast Louisiana including
the Baton Rouge, New Orleans, and Houma metro areas and across
portions of Southwest Mississippi along the I-55 corridor.  These
life-threatening rainfall impacts are expected to begin as
early as tonight and continue through Monday. Potential
impacts include:
    - Extreme rainfall flooding may prompt numerous evacuations and
      rescues.
    - Rivers and tributaries may overwhelmingly overflow their banks
      in many places with deep moving water. Small streams, creeks,
      canals, and ditches may become raging rivers. Flood control
      systems and barriers may become stressed.
    - Flood waters can enter numerous structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Numerous places where flood waters may cover escape
      routes. Streets and parking lots become rivers of raging water
      with underpasses submerged. Driving conditions become very
      dangerous. Numerous road and bridge closures with some weakened
      or washed out.

Protect against life-threatening rainfall flooding having possible
extensive impacts across the remainder of Southeast Louisiana,
Southwest Mississippi, and Coastal Mississippi. These life-threatening
impacts are expected to begin as early as tonight and continue through
Monday.

* TORNADOES:
Protect against a tornado event having possible limited impacts
across Southeast Louisiana and South Mississippi. Potential impacts
include:
    - The occurrence of isolated tornadoes can hinder the execution
      of emergency plans during tropical events.
    - A few places may experience tornado damage, along with power
      and communications disruptions.
    - Locations could realize roofs peeled off buildings, chimneys
      toppled, mobile homes pushed off foundations or overturned,
      large tree tops and branches snapped off, shallow-rooted trees
      knocked over, moving vehicles blown off roads, and small boats
      pulled from moorings.

PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------

* EVACUATIONS:
Listen to local official for recommended preparedness actions,
including possible evacuation. If ordered to evacuate, do so
immediately.

For those not under evacuation orders, assess the risk from wind,
falling trees, and flooding at your location. If you decide to move,
relocate to a safer location nearby. If you do not relocate, help
keep roadways open for those under evacuation orders.

If evacuating, leave with a destination in mind and allow extra time
to get there. Take your emergency supplies kit. Gas up your vehicle
ahead of time.

Let others know where you are going prior to departure. Secure loose
items and pets in the car, and avoid distracted driving.

If evacuating, follow designated evacuation routes. Seek traffic
information on roadway signs, the radio, and from official sources.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to complete all preparations to protect life and
property in accordance with your emergency plan. Ensure you are in a
safe location before the onset of strong winds or possible flooding.

If you are relocating to safe shelter, leave as early as possible.
Allow extra time to reach your destination. Many roads and bridges
will be closed once strong winds arrive. Check the latest weather
forecast before departing and drive with caution.

Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.

It is important to remain calm, informed, and focused during an
emergency. Be patient and helpful with those you encounter.

Storm surge is the leading killer associated with tropical storms and
hurricanes! Make sure you are in a safe area away from the surge
zone. Even if you are not in a surge-prone area, you could find
yourself cutoff by flood waters during and after the storm. Heed
evacuation orders issued by the local authorities.

Rapidly rising flood waters are deadly. If you are in a flood-prone
area, consider moving to higher ground. Never drive through a flooded
roadway. Remember, turn around don't drown!

Closely monitor weather.gov, NOAA Weather radio or local news outlets
for official storm information. Be ready to adapt to possible changes
to the forecast. Ensure you have multiple ways to receive weather
warnings.

* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org

NEXT UPDATE
-----------

The next local statement will be issued by the National Weather
Service in New Orleans LA around 11 PM CDT, or sooner if conditions
warrant.

$$
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