[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS84 KLCH 230315
HLSLCH
LAZ029-033-044-045-052>055-231115-

Tropical Storm Marco Local Statement Advisory Number 11
National Weather Service Lake Charles LA  AL142020
1015 PM CDT Sat Aug 22 2020

This product covers Southwest Louisiana and Southeast Texas

...MARCO MOVING NORTH-NORTHWESTWARD ACROSS THE SOUTHERN GULF OF
MEXICO...
...STORM SURGE AND HURRICANE WATCHES IN EFFECT FOR PORTIONS OF
THE NORTHERN GULF COAST...

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Storm Surge Watch and Hurricane Watch are in effect for
      Iberia, St. Mary, and Vermilion
    - A Tropical Storm Watch is in effect for Avoyelles, Lafayette,
      Lower St. Martin, St. Landry, and Upper St. Martin
    - A Storm Surge Watch is in effect for East Cameron and West
      Cameron

* STORM INFORMATION:
    - About 600 miles southeast of Intracoastal City LA or about 560
      miles south-southeast of Morgan City LA
    - 22.8N 86.3W
    - Storm Intensity 65 mph
    - Movement North-northwest or 335 degrees at 13 mph

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

Marco is forecast to continue moving north-northwestward across the
central Gulf of Mexico on Sunday and will approach the northern Gulf
Coast on Monday. A gradual turn toward the west with a decrease in
forward speed is expected after Marco moves inland on Monday and on
Tuesday.

Data from an Air Force Reserve Hurricane Hunter aircraft indicate that
the maximum sustained winds remain near 65 mph with higher gusts. Some
strengthening is anticipated and Marco is forecast to become a
hurricane on Sunday. Marco is expected to be at or near hurricane
strength when it approaches the northern Gulf Coast on Monday. Rapid
weakening is expected after Marco moves inland.

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

* WIND:
Prepare for life-threatening wind having possible extensive impacts
across South Central Louisiana. Potential impacts in this area
include:
    - Considerable roof damage to sturdy buildings, with some having
      window, door, and garage door failures leading to structural
      damage. Mobile homes severely damaged, with some destroyed.
      Damage accentuated by airborne projectiles. Locations may be
      uninhabitable for weeks.
    - Many large trees snapped or uprooted along with fences and
      roadway signs blown over.
    - Some roads impassable from large debris, and more within urban
      or heavily wooded places. Several bridges and access routes
      impassable.
    - Large areas with power and communications outages.

Also, prepare for dangerous wind having possible limited to
significant impacts across Central Louisiana.

* SURGE:
Prepare for life-threatening surge having possible significant impacts
across South Central Louisiana. Potential impacts in this area
include:
    - Areas of inundation with storm surge flooding accentuated by
      waves. Damage to non-elevated structures is possible.
    - Sections of 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, and piers. Several small
      craft broken away from moorings, especially in unprotected
      anchorages.

Elsewhere across Southwest Louisiana and Southeast Texas, little to no
impact is anticipated.

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across South Central and Central Louisiana. 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.

Prepare for locally hazardous rainfall flooding having possible
limited impacts across Southwest Louisiana and Southeast Texas.

* TORNADOES:
Little to no impacts are anticipated at this time across Southwest
Louisiana and 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.


* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and emergency supplies
kit and take necessary actions to protect your family and secure your
home or business.

When making safety and preparedness decisions, do not focus on the
exact forecast track since hazards such as flooding rain, damaging
wind gusts, storm surge, and tornadoes extend well away from the
center of the storm.

If you live in a place particularly vulnerable to flooding, such as
near the ocean or a large inland lake, in a low-lying or poor drainage
area, in a valley, or near an already swollen river, plan to move to
safe shelter on higher ground.


* 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 AM, or sooner if conditions
warrant.

$$
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