[Tropical] Hurricane Local Statement

EMWIN Server emwin at nashvilleweather.net
Thu Aug 27 13:12:22 CDT 2020


WTUS84 KLIX 271812
HLSLIX
LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-280215-

Tropical Storm Laura Local Statement Intermediate Advisory Number 31A
National Weather Service New Orleans LA  AL132020
112 PM CDT Thu Aug 27 2020

This product covers Southeast Louisiana and South Mississippi

**LAURA CONTINUES TO BRING MOSTLY MINOR IMPACTS TO SOUTHEAST
LOUISIANA AND SOUTHERN MISSISSIPPI**

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

* CHANGES TO WATCHES AND WARNINGS:
    - The Tropical Storm Warning has been cancelled for Assumption,
      Iberville, Lower Jefferson, Lower Lafourche, Lower Plaquemines,
      Lower Terrebonne, Pointe Coupee, Upper Lafourche, Upper
      Terrebonne, and West Baton Rouge

* CURRENT WATCHES AND WARNINGS:
    - A Storm Surge Warning is in effect for Lower Lafourche and
      Lower Terrebonne

* STORM INFORMATION:
    - About 250 miles northwest of New Orleans LA or about 280 miles
      northwest of Gulfport MS
    - 32.9N 92.8W
    - Storm Intensity 65 mph
    - Movement North or 10 degrees at 15 mph

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

Tropical Storm Laura is currently located near the Louisiana and
Arkansas border, and is moving north at 15 mph. Laura is expected
to turn more to the northwest later tonight and move across the
middle Mississippi River Valley on Friday. Rapid weakening is
expected to continue. Local impacts should continue to lessen.

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

* FLOODING RAIN:
Potential impacts from the flooding rain are still possible across
much of southeast Louisiana and southern Mississippi. 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.

* TORNADOES:
Potential impacts from tornadoes are still unfolding across Southeast
Louisiana and South 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.

* SURGE:
Impacts from the main surge event are beginning to recede across
coastal portions of southeast Louisiana and Mississippi. Remain well
away from any life-threatening surge having possible 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.

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

* WIND:
Potential impacts from the main wind event are lessening across
southeast Louisiana and southern Mississippi. 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.

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

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

* OTHER PREPAREDNESS INFORMATION:
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 CDT, or sooner if conditions
warrant.

$$
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