[Tropical] Hurricane Local Statement

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Hurricane Laura Local Statement Advisory Number 29
National Weather Service New Orleans LA  AL132020
1027 PM CDT Wed Aug 26 2020

This product covers Southeast Louisiana and South Mississippi

**POWERFUL CATEGORY 4 HURRICANE LAURA IS APPROACHING THE UPPER TEXAS
AND SOUTHWESTERN LOUISIANA COAST AND FORECAST TO LANDFALL TONIGHT.**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Iberville, Pointe
      Coupee, and West Baton Rouge
    - A Storm Surge Warning and Tropical Storm Warning are in effect
      for Assumption, Lower Jefferson, Lower Lafourche, Lower
      Plaquemines, Lower Terrebonne, Upper Lafourche, and Upper
      Terrebonne

* STORM INFORMATION:
    - About 190 miles west-southwest of New Orleans LA or about 150
      miles west-southwest of Houma LA
    - 29.0N 93.2W
    - Storm Intensity 150 mph
    - Movement North-northwest or 340 degrees at 15 mph

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

Hurricane Laura is currently moving west-northwest into the
south-central Gulf of Mexico. The hurricane is expected to strengthen
as it approaches coast of Southwest Louisiana and Upper Texas on
Wednesday and Thursday.

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

* SURGE:
Protect against life-threatening surge having possible significant
impacts across coastal areas of Southeast Louisiana and across
coastal areas of Southern Mississippi west of Ocean Springs.
Potential impacts in this area 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.

Also, protect against locally hazardous surge having possible limited
impacts across coastal areas of Southern Mississippi east of Ocean
Springs.

* WIND:
Protect against dangerous wind having possible significant impacts
across the Atchafalaya River Basin. Potential impacts in this area
include:
    - Some damage to roofing and siding materials, along with damage
      to porches, awnings, carports, and sheds. A few buildings
      experiencing window, door, and garage door failures. Mobile
      homes damaged, especially if unanchored. Unsecured lightweight
      objects become dangerous projectiles.
    - Several large trees snapped or uprooted, but with greater
      numbers in places where trees are shallow rooted. Several
      fences and roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. A few bridges, causeways, and access
      routes impassable.
    - Scattered power and communications outages, but more prevalent
      in areas with above ground lines.

Also, protect against hazardous wind having possible limited impacts
across the remainder of Southeast Lousiana, Southwest Mississippi,
and Coastal Mississippi.

* TORNADOES:
Protect against a tornado event having possible limited impacts
across Southeast Louisiana and Southwest 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.


* FLOODING RAIN:
Protect against dangerous rainfall flooding having possible
significant impacts across the New Orleans, Houma, and Baton Rouge
regions, Southwest Mississippi, and portions of Coastal Mississippi
mainly west of Gulfport. Potential impacts include:
    - Moderate rainfall flooding may prompt several evacuations and
      rescues.
    - Rivers and tributaries may quickly become swollen with swifter
      currents and overspill their banks in a few places, especially
      in usually vulnerable spots. Small streams, creeks, canals, and
      ditches overflow.
    - Flood waters can enter some structures or weaken foundations.
      Several places may experience expanded areas of rapid
      inundation at underpasses, low-lying spots, and poor drainage
      areas. Some streets and parking lots take on moving water as
      storm drains and retention ponds overflow. Driving conditions
      become hazardous. Some road and bridge closures.

Protect against locally hazardous rainfall flooding having possible
limited impacts across Coastal Mississippi.

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

* OTHER PREPAREDNESS INFORMATION:
Always heed the advice of local officials and comply with orders that
are issued. Do not needlessly jeopardize your life or the lives of
others.

Closely monitor weather.gov, NOAA Weather Radio and local news
outlets for official storm information. Listen for possible changes
to the forecast.

There is a threat from tornadoes with this storm. Have multiple ways
to receive Tornado Warnings. Be ready to shelter quickly.

* 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 2 AM CDT, or sooner if conditions
warrant.

$$
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