[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Tue Aug 25 10:46:08 CDT 2020
WTUS84 KLCH 251545
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LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-252345-
Hurricane Laura Local Statement Advisory Number 23
National Weather Service Lake Charles LA AL132020
1045 AM CDT Tue Aug 25 2020
This product covers Southwest Louisiana and Southeast Texas
**HURRICANE AND SURGE WARNINGS ISSUED **
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- The Hurricane Watch has been upgraded to a Tropical Storm
Warning for Lafayette and Upper St. Martin
- The Storm Surge Watch has been upgraded to a Storm Surge
Warning and a Tropical Storm Warning have been issued for
Iberia, Lower St. Martin, and St. Mary
- The Hurricane Watch has been upgraded to a Hurricane Warning
and the Storm Surge Watch has been upgraded to a Storm Surge
Warning for Acadia, Calcasieu, East Cameron, Jefferson,
Jefferson Davis, Orange, Vermilion, and West Cameron
- The Tropical Storm Watch has been upgraded to a Hurricane
Warning and a Storm Surge Warning have been issued for Southern
Newton
- The Tropical Storm Watch has been upgraded to a Hurricane
Warning for Allen, Beauregard, Evangeline, Hardin, Northern
Jasper, Northern Newton, Rapides, Southern Jasper, Tyler, and
Vernon
- The Tropical Storm Watch has been upgraded to a Tropical Storm
Warning for Avoyelles and St. Landry
* CURRENT WATCHES AND WARNINGS:
- A Storm Surge Warning and Hurricane Warning are in effect for
Acadia, Calcasieu, East Cameron, Jefferson, Jefferson Davis,
Orange, Southern Newton, Vermilion, and West Cameron
- A Storm Surge Warning, Tropical Storm Warning, and Hurricane
Watch are in effect for Iberia, Lower St. Martin, and St. Mary
- A Hurricane Warning is in effect for Allen, Beauregard,
Evangeline, Hardin, Northern Jasper, Northern Newton, Rapides,
Southern Jasper, Tyler, and Vernon
- A Tropical Storm Warning is in effect for Avoyelles, Lafayette,
St. Landry, and Upper St. Martin
* STORM INFORMATION:
- About 590 miles southeast of Sabine Pass TX or about 570 miles
southeast of Cameron LA or about 530 miles southeast of
Intracoastal City LA or about 490 miles south-southeast of
Morgan City LA or about 590 miles southeast of Lake Charles LA
or about 600 miles southeast of Port Arthur TX
- 23.7N 87.0W
- Storm Intensity 75 mph
- Movement West-northwest or 290 degrees at 16 mph
SITUATION OVERVIEW
------------------
As of 10 AM CDT, the center of Hurricane Laura was located in the
southeast Gulf of Mexico. Laura was moving to the west-northwest at
16 mph and this general motion should continue today. A turn toward
the northwest is forecast by Wednesday, and a northwestward to north-
northwestward motion should continue through Wednesday night. On the
forecast track, the center of Laura will move across the southeastern
Gulf of Mexico today. Laura is then forecast to move over the central
and northwestern Gulf of Mexico tonight and Wednesday, approach the
Upper Texas and Southwest Louisiana coasts on Wednesday night and move
inland near those areas on Thursday.
Showers and thunderstorms ahead of the center will begin to overspread
southwest Louisiana and southeast Texas during Wednesday, with an
increasing risk of localized flash flooding. Isolated tornadoes will
also be possible, especially over southwest Louisiana.
Tropical storm force winds are expected to spread across southwest
Louisiana on Wednesday afternoon and southeast Texas by Wednesday
evening. Hurricane force winds, mainly in frequent gusts, will be
likely beginning Wednesday night across southwest Louisiana and
southeast Texas.
Storm surge of 7 to 13 feet above ground level will be possible along
the coast through Thursday, along and to the east of where the center
comes ashore.
POTENTIAL IMPACTS
-----------------
* SURGE:
Protect against life-threatening surge having possible devastating
impacts across mainly along and south of the I-10 corridor. 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.
- Escape routes and secondary roads washed out or severely
flooded. Flood control systems and barriers may become stressed
or overtopped.
- Extreme beach erosion. New shoreline cuts possible.
- Massive damage to marinas, docks, and piers. Numerous small
craft broken away from moorings with many lifted onshore and
stranded.
Elsewhere across Southwest Louisiana and Southeast Texas, little to
no impact is anticipated.
* WIND:
Protect against life-threatening wind having possible devastating
impacts across southeast Texas, southwest Louisiana, and west central
Louisiana. 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 and access routes
impassable.
- Widespread power and communications outages.
Also, protect against life-threatening wind having possible
significant to extensive impacts across south central and east central
Louisiana.
* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
extensive impacts across southeast Texas and southwest Louisiana.
Potential 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.
Protect against dangerous rainfall flooding having possible
significant impacts across central and south central Louisiana.
* TORNADOES:
Protect against a tornado event having possible limited impacts
across Southwest Louisiana and Southeast Texas. 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:
WATCH/WARNING PHASE - Listen to local official for recommended
preparedness actions, including possible evacuation. If ordered to
evacuate, do so immediately.
WATCH/WARNING PHASE - 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.
* 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.
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.
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 Lake Charles LA around 5:30 PM CDT, or sooner if
conditions warrant.
$$
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