[Tropical] Hurricane Local Statement

EMWIN Server emwin at nashvilleweather.net
Tue Aug 29 07:02:34 CDT 2017


WTUS84 KLCH 291201
HLSLCH
LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-292015-

Tropical Storm Harvey Local Statement Intermediate Advisory Number 36A
National Weather Service Lake Charles LA  AL092017
701 AM CDT Tue Aug 29 2017

This product covers SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS

**CONTINUED HEAVY RAINFALL TODAY IS EXPECTED TO WORSEN THE FLOOD
SITUATION IN SOUTHEASTERN TEXAS AND SOUTHWESTERN LOUISIANA**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning and Storm Surge Watch are in effect
      for East Cameron, Jefferson, Vermilion, and West Cameron
    - A Storm Surge Watch is in effect for Iberia and St. Mary

* STORM INFORMATION:
    - About 140 miles southwest of Cameron LA or about 160 miles
      south-southwest of Lake Charles LA
    - 28.2N 94.6W
    - Storm Intensity 45 mph
    - Movement East-northeast or 60 degrees at 3 mph

SITUATION OVERVIEW
------------------
As of 7 AM CDT, the center of Tropical Storm Harvey was over the Gulf of
Mexico around 145 miles south-southwest of Port Arthur, Texas. Harvey
was moving east-northeast at 3 mph and this motion is expected to continue
through this morning. A turn toward the northeast is expected later today
and tonight, followed by a turn toward the north-northeast on Wednesday.
On this forecast track, the center of Harvey is expected to be just offshore
of the middle and upper coasts of Texas through tonight, then move inland
west of Cameron on Wednesday.

Areas of rain with embedded heavier showers and thunderstorms well
north and northeast of the center will continue to develop and track
northward across much of the area today and tonight, with an increased
risk of localized flash flooding. Isolated tornadoes are also be
possible, especially over the coastal counties and parishes.

Tropical storm force winds, mainly in the form of gusts, are expected
to spread across coastal Southeast Texas and Southwest Louisiana by
late this afternoon as the center moves closer to the coast.

Storm surge of 1 to 3 feet above ground level will be possible along the
coast through Wednesday night, primarily around the times of
astronomical high tides.

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

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
Southeast Texas and Southwest Louisiana. Remain well guarded against
life- threatening flood waters having additional devastating impacts.
If realized, these impacts include:
    - Extreme rainfall flooding may prompt numerous evacuations and
      rescues.
    - Rivers and tributaries may overwhelmingly overflow their banks
      in many places with deep moving water. Small streams, creeks,
      canals, and ditches may become raging rivers. Flood control
      systems and barriers may become stressed.
    - Flood waters can enter numerous structures within multiple
      communities, some structures becoming uninhabitable or washed
      away. Numerous places where flood waters may cover escape
      routes. Streets and parking lots become rivers of raging water
      with underpasses submerged. Driving conditions become very
      dangerous. Numerous road and bridge closures with some weakened
      or washed out.

Potential impacts from the flooding rain are still unfolding across
Central and South Central Louisiana. Remain well guarded against
life-threatening flood waters having additional limited to extensive impacts.

* SURGE:
Potential impacts from the main surge event are now unfolding across
Coastal Southeast Texas and Louisiana. Remain well away from locally
hazardous surge having possible limited impacts. If realized, these
impacts include:
    - Localized inundation with storm surge flooding mainly along
      immediate shorelines and in low-lying spots, or in areas
      farther inland along rivers and bayous that drain into the Gulf.
    - Sections of roads and parking lots near bodies of water may
      become overspread with surge water. Driving conditions
      dangerous in places where surge water covers the road.
    - Moderate beach erosion. Heavy surf also breaching dunes, mainly
      in usually vulnerable locations. Strong rip currents.
    - Minor to locally moderate damage to marinas, docks, and piers.
      A few small craft broken away from moorings.

Elsewhere across SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS, little to
no impact is anticipated.

* WIND:
Potential impacts from the main wind event are now unfolding across
SOUTHWEST LOUISIANA AND SOUTHEAST TEXAS. Remain well sheltered from
hazardous wind having possible limited impacts. If realized, these
impacts 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 and access routes
      impassable.
    - Scattered power and communications outages, but more prevalent
      in areas with above ground lines.

* TORNADOES:
Potential impacts from tornadoes are still unfolding across SOUTHWEST
LOUISIANA AND SOUTHEAST TEXAS. 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.

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

* EVACUATIONS:
Do not return to evacuated areas until hazardous winds diminish and
flood waters abate.

* OTHER PREPAREDNESS INFORMATION:
Check-in with your emergency points of contact among family, friends,
and workmates. Inform them of your status and well-being. Let them
know how you intend to ride out the storm and when you plan to
check-in again.

Keep cell phones well charged and handy. Also, cell phone chargers
for automobiles can be helpful after the storm. Locate your chargers
and keep them with your cell phone.

* 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 11 AM CDT, or sooner if conditions
warrant.

$$
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