[Tropical] Hurricane Local Statement
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Tue Aug 25 10:30:13 CDT 2020
WTUS84 KHGX 251529
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Hurricane Laura Local Statement Advisory Number 23
National Weather Service Houston/Galveston TX AL132020
1029 AM CDT Tue Aug 25 2020
This product covers Southeast Texas
**Hurricane Laura Aiming For The Northwest Gulf Coast**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- The Tropical Storm Watch has been upgraded to a Tropical Storm
Warning for Brazoria Islands, Inland Brazoria, Inland Harris,
Montgomery, San Jacinto, Trinity, and Walker
- The Hurricane Watch has been upgraded to a Hurricane Warning
and the Storm Surge Watch has been upgraded to a Storm Surge
Warning for Chambers, Coastal Galveston, Coastal Harris, and
Galveston Island and Bolivar Peninsula
- The Hurricane Watch has been upgraded to a Hurricane Warning
and a Storm Surge Warning have been issued for Southern Liberty
- The Tropical Storm Watch has been upgraded to a Hurricane
Warning for Inland Galveston, Northern Liberty, and Polk
- The Storm Surge Watch has been upgraded to a Storm Surge
Warning and the Tropical Storm Watch has been upgraded to a
Tropical Storm Warning for Coastal Brazoria
- A Tropical Storm Warning has been issued for Fort Bend, Grimes,
Houston, Madison, and Waller
* CURRENT WATCHES AND WARNINGS:
- A Tropical Storm Warning is in effect for Fort Bend, Grimes,
Houston, Inland Brazoria, Inland Harris, Madison, Montgomery,
San Jacinto, Trinity, Walker, and Waller
- A Tropical Storm Warning and Storm Surge Watch are in effect
for Brazoria Islands
- A Storm Surge Warning and Hurricane Warning are in effect for
Chambers, Coastal Galveston, Coastal Harris, Galveston Island
and Bolivar Peninsula, and Southern Liberty
- A Hurricane Warning is in effect for Inland Galveston, Northern
Liberty, and Polk
- A Storm Surge Warning and Tropical Storm Warning are in effect
for Coastal Brazoria
* STORM INFORMATION:
- About 620 miles southeast of Galveston TX
- 23.7N 87.0W
- Storm Intensity 75 mph
- Movement West-northwest or 290 degrees at 16 mph
SITUATION OVERVIEW
------------------
Hurricane Laura continues its trek through the southern Gulf of
Mexico. As of 10 am CDT, Laura is moving west-northwest around 16 mph
with maximum winds of 75 mph. Laura will be moving through an environment
with favorable conditions for strengthening and is expected to become
a major hurricane by landfall Wednesday night in either southwest Louisiana
or Southeast Texas. Hurricane warnings are now in effect in the Galveston Bay
area, as well as Polk County. A tropical storm warning covers much of the rest
of Southeast Texas east of the Brazos River. The track has been slowly
shifting to the west since yesterday and additional adjustments to the track
may be necessary today. This may require additional warnings further
down the Southeast Texas Gulf Coast.
Specific impacts will be strongly dependent on the exact track and
intensity of the storm when it makes landfall. Stay alert to the
latest forecast information!
POTENTIAL IMPACTS
-----------------
* SURGE:
Protect against life-threatening surge having possible extensive
impacts across the Bolivar Peninsula. Potential impacts in this area include:
- Large areas of deep inundation with storm surge flooding
accentuated by battering waves. Structural damage to buildings,
with several washing away. Damage compounded by floating
debris. Locations may be uninhabitable for an extended period.
- Large sections of near-shore escape routes and secondary roads
washed out or severely flooded. Flood control systems and
barriers may become stressed.
- Severe beach erosion with significant dune loss.
- Major damage to marinas, docks, boardwalks, and piers. Many
small craft broken away from moorings, especially in
unprotected anchorages with some lifted onshore and stranded.
Also, protect against life-threatening surge having possible
significant impacts across the rest of the Galveston Bay area.
Also, protect against locally hazardous surge having possible limited
impacts across the rest of the Southeast Texas Gulf Coast to Matagorda Bay.
* WIND:
Protect against life-threatening wind having possible devastating
impacts across the eastern Galveston Bay area. 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 the western Galveston Bay area and down
the Texas Gulf Coast to Matagorda Bay.
* FLOODING RAIN:
Protect against dangerous rainfall flooding having possible
significant impacts across the Galveston Bay area and Pineywoods. 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 the rest of Southeast Texas.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
Listen to local official for recommended
preparedness actions, including possible evacuation. If ordered to
evacuate, do so immediately.
For those not under evacuation orders, assess
the risk from wind, falling trees, and flooding at your location. If
you decide to move, relocate to a safer location nearby. If you do
not relocate, help keep roadways open for those under evacuation
orders.
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.
If heading to a community shelter, become familiar with the shelter
rules before arrival, especially if you have special needs or have
pets. Be sure to check with local officials for the latest information
as shelter rules and procedures may be different this year!
Take essential items with you from your Emergency Supplies Kit.
It is important to remain calm, informed, and focused during an
emergency. Be patient and helpful with those you encounter.
* 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 Houston/Galveston TX around 10 PM CDT, or sooner if
conditions warrant.
$$
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