[Tropical] Hurricane Local Statement

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Tropical Storm Ida Local Statement Advisory Number 18...RESENT
National Weather Service New Orleans LA  AL092021
Issued by National Weather Service Jacksonville FL
1043 AM CDT Mon Aug 30 2021

This product covers Southeast Louisiana and South Mississippi

**IDA WEAKENING WHILE MOVING NORTHWARD OVER WESTERN MISSISSIPPI**

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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Warning has been cancelled for Amite, East
      Baton Rouge, East Feliciana, St. Helena, West Feliciana,
      Western Orleans, and Wilkinson
    - The Storm Surge Warning has been cancelled for Ascension and
      St. James
    - A Tropical Storm Warning has been issued for Assumption, Lower
      Lafourche, Lower Terrebonne, Upper Lafourche, and Upper
      Terrebonne
    - The Storm Surge Warning and Tropical Storm Warning have been
      cancelled for Eastern Orleans, Livingston, Lower Jefferson,
      Lower Plaquemines, Lower St. Bernard, Northwest St. Tammany,
      Southeast St. Tammany, Southern Tangipahoa, St. Charles, St.
      John The Baptist, Upper Jefferson, Upper Plaquemines, and Upper
      St. Bernard

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Assumption, Lower
      Lafourche, Lower Terrebonne, Northern Tangipahoa, Pearl River,
      Pike, Upper Lafourche, Upper Terrebonne, Walthall, and
      Washington
    - A Storm Surge Warning and Tropical Storm Warning are in effect
      for Hancock, Harrison, and Jackson

* STORM INFORMATION:
    - About 140 miles north-northwest of New Orleans LA or about 140
      miles northwest of Gulfport MS
    - 31.9N 90.7W
    - Storm Intensity 40 mph
    - Movement North or 10 degrees at 9 mph

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

Tropical Storm Ida will continue to produce significant and life threatening
impacts through midday, including storm surge flooding and possible
flooding rains over southeast Louisiana and coastal Mississippi. These
conditions will slowly and gradually improve as Ida moves farther
inland and away from the area through the day today.

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

* SURGE:
Potential impacts from the main surge event are still unfolding across coastal
areas from Pearl River eastward over the forecast area. Remain well away
from life-threatening surge having additional significant impacts. If
realized, these impacts include:
    - Areas of inundation with storm surge flooding accentuated by
      waves. Damage to several buildings, mainly near the coast.
    - Sections of near-shore escape routes and secondary roads become
      weakened or washed out, especially in usually vulnerable low
      spots.
    - Major beach erosion with heavy surf breaching dunes. Strong and
      numerous rip currents.
    - Moderate damage to marinas, docks, boardwalks, and piers.
      Several small craft broken away from moorings, especially in
      unprotected anchorages.

Potential impacts from the main surge event are also now unfolding
across the rest of the area and on area lakes that are still elevated
from Ida impacts. Remain well away from locally hazardous surge having
possible limited impacts.

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
the area. Remain well guarded against life-threatening flood waters having
possible extensive impacts. If realized, these impacts include:
    - Major rainfall flooding may prompt many evacuations and rescues.
    - Rivers and tributaries may rapidly overflow their banks in
      multiple places. Small streams, creeks, canals, and ditches may
      become dangerous rivers. Flood control systems and barriers may
      become stressed.
    - Flood waters can enter many structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Many places where flood waters may cover escape routes.
      Streets and parking lots become rivers of moving water with
      underpasses submerged. Driving conditions become dangerous.
      Many road and bridge closures with some weakened or washed out.

* WIND:
Potential impacts from the main wind event are now unfolding across
southeast Louisiana. Remain well sheltered from hazardous wind
having possible limited impacts. If realized, these impacts include:
    - Damage to porches, awnings, carports, sheds, and unanchored
      mobile homes. Unsecured lightweight objects blown about.
    - Many large tree limbs broken off. A few trees snapped or
      uprooted, but with greater numbers in places where trees are
      shallow rooted. Some fences and roadway signs blown over.
    - A few roads impassable from debris, particularly within urban
      or heavily wooded places. Hazardous driving conditions on
      bridges and other elevated roadways.
    - Scattered power and communications outages.

Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.

* TORNADOES:
Potential impacts from tornadoes are still unfolding across over
southeast Louisiana and coastal Mississippi. Remain well braced against a
tornado event having possible limited impacts. If realized,
these 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.

Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.

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

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

* OTHER PREPAREDNESS INFORMATION:
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.

* 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 530 PM, or sooner if conditions
warrant.

$$
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