[Tropical] Hurricane Local Statement

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Hurricane Ida Local Statement Advisory Number 14
National Weather Service New Orleans LA  AL092021
1049 AM CDT Sun Aug 29 2021

This product covers Southeast Louisiana and South Mississippi

**EYE OF EXTREMELY DANGEROUS CATEGORY 4 HURRICANE IDA NEARING THE
SOUTHEASTERN COAST OF LOUISIANA**

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 80 miles south of New Orleans LA or about 70 miles
      southeast of Houma LA
    - 28.8N 90.0W
    - Storm Intensity 150 mph
    - Movement Northwest or 320 degrees at 13 mph

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

Category 4 Hurricane Ida is rapidly approaching landfall along
the Southeast Louisiana coast in Lafourche and Terrebonne Parishes.
Catastrophic impacts can be expected in these parishes as the storm
moves through over the next few hours.  Significant impacts
are expected across the remainder of Southeast Louisiana
and moderate impacts are expected across coastal Mississippi and
Southwest Mississippi from this afternoon through the overnight
hours tonight.  It is too late to evacuate at this time.  You are
advised to shelter in place until the storm passes through.

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 today into Monday. 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 today into Monday.

* WIND:
Protect against life-threatening wind having possible devastating
impacts across portions of Southeast Louisiana including metro New
Orleans, metro Baton Rouge, Hammond, Grand Isle, and the Houma
metropolitan area as well as portions of Southwest Mississippi
mainly between Woodville and McComb. These life-threatening wind
impacts have begun along the Louisiana coast and will spread inland to
the New Orleans, Houma, and Baton Rouge metro areas and Southwest
Mississippi through the late morning and afternoon hours.
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 coastal Mississippi, portions of the
Northshore including the cities of Slidell and Bogalusa, portions
of Southwest Mississippi including the city of Tylertown, and areas
along the Atchafalaya River west of Baton Rouge. These
life- threatening wind impacts are expected to occur this afternoon
through the overnight hours.

* 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 as well portions
of coastal Mississippi mainly west of Biloxi. These
life-threatening rainfall impacts have begun and will 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 have begun and will and continue through
Monday.

* TORNADOES:
Potential impacts from tornadoes are still unfolding across coastal
Mississippi. Remain well braced against a dangerous tornado
event having possible significant impacts. If realized, these impacts
include:
    - The occurrence of scattered tornadoes can hinder the execution
      of emergency plans during tropical events.
    - Several places may experience tornado damage with a few spots
      of considerable damage, power loss, and communications failures.
    - Locations could realize roofs torn off frame houses, mobile
      homes demolished, boxcars overturned, large trees snapped or
      uprooted, vehicles tumbled, and small boats tossed about.
      Dangerous projectiles can add to the toll.

Potential impacts from tornadoes are still unfolding across all of
Southeast Louisiana and Southwest Mississippi. Remain well braced
against a tornado event having possible limited impacts.

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

* EVACUATIONS:

Do not enter evacuated areas until officials have given the all
clear to return.

* OTHER PREPAREDNESS INFORMATION:
Now is the time to stay inside and away from windows. Listen for
updates and be ready in case you lose electrical power. Keep a
battery-powered radio, charged cell phone and flashlight handy.

During the peak of the storm be ready to move quickly. Keep your
shoes on and rain gear handy. Boots and athletic shoes offer the best
foot protection if you become unexpectedly exposed to the weather.

Keep your cell phone charged and in power-saving mode. If you lose
power, use it sparingly and mainly for personal emergencies and
check-ins.

Do not venture outside while in the eye of a hurricane as any
improvement in weather will only be temporary. Once the eye passes,
conditions will become life threatening as winds immediately return
to dangerous speeds, so remain safely sheltered from the storm.

Do not be a thrill seeker or risk your life for senseless photos or
videos.

If you are prone to flooding or in an area under a storm surge watch
or warning, be prepared for the possibility of a quick and dramatic
rise in water levels.

If a tornado warning is issued for your area, quickly move to the
safest place within your shelter. Protect your head and body.

If an Extreme Wind Warning is issued for your area, move to the
safest place within your shelter. Take the same life-saving actions
as if it were a violent tornado.

* 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 5 PM EDT, or sooner if conditions
warrant.

$$
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