[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS84 KEWX 232118
HLSEWX
TXZ209-221>225-240530-

Tropical Depression Harvey Local Statement Advisory Number 13
National Weather Service Austin/San Antonio TX  AL092017
418 PM CDT Wed Aug 23 2017

This product covers SOUTH CENTRAL TEXAS

**Harvey to bring Heavy Rainfall and Tropical Storm Force Winds to
 South Central Texas**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Watch is in effect for De Witt, Fayette,
      Gonzales, Karnes, Lavaca, and Wilson

* STORM INFORMATION:
    - About 600 miles south-southeast of Hallettsville TX or about
      630 miles south-southeast of La Grange TX or about 590 miles
      south-southeast of Cuero TX
    - 21.6N 92.6W
    - Storm Intensity 35 mph
    - Movement Northwest or 320 degrees at 2 mph

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

Tropical depression Harvey continues to crawl slowly north and west in
the Gulf of Mexico. Harvey is expected to move northwest and approach
the middle Texas coast late Thursday into Friday. The tropical system
will bring tropical storm winds and heavy rainfall across South Central
Texas beginning Friday and continuing through the weekend. Flash
flooding and river flooding are possible, mainly across the Tropical
Storm Watch area.

At this time storm total rainfall amounts of 6 to 10 inches are
expected east of Interstate 35 with isolated totals in excess of
12 inches possible in the counties in the Tropical Storm Watch from
Friday afternoon through Monday afternoon.

There remains uncertainty in the forecast track of Harvey across
Texas. Only small changes to the track or speed of Harvey will result
in large changes to impacts across South Central Texas. Much higher
rainfall amounts will be possible across South Central Texas, including
areas into the Interstate 35 corridor, if the track shifts further
west or if Harvey stalls or slows forward speed.

Tropical storm force winds from 40 to 50 mph with some gusts in excess
of 60 mph are possible Friday into the weekend with the best chances
of the higher winds being along the Coastal Plains. There is a low
risk of brief tornadoes east of Interstate 35 Friday evening into the
weekend associated with tropical rain bands.

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

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across areas in the Tropical Storm Watch. 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,
      arroyos, 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.

Elsewhere across SOUTH CENTRAL TEXAS, little to no impact is
anticipated.

* WIND:
Prepare for dangerous wind having possible significant impacts across
the Tropical Storm Watch area. Potential impacts in this area 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, causeways, and access
      routes impassable.
    - Scattered power and communications outages, but more prevalent in
      areas with above ground lines.

* TORNADOES:
Prepare for a tornado event having possible limited impacts across
areas east of Interstate 35. 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.

Elsewhere across SOUTH CENTRAL TEXAS, little to no impact is
anticipated.

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

* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and take necessary
actions to secure your home or business. Deliberate efforts should be
underway to protect life and property. Ensure that your Emergency
Supplies Kit is stocked and ready.

When making safety and preparedness decisions, do not focus on the
exact forecast track as there are inherent forecast uncertainties
which must be taken into account.

If you live in a place that is particularly vulnerable to high wind,
such as a mobile home, an upper floor of a high rise building, or on
a boat, plan to move to safe shelter. Take enough supplies for you
and your family for several days.

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 canyon, or near an already swollen
river, plan to move to safe shelter on higher ground

Be a Good Samaritan and check on those who may not be fully aware of
the situation or who are unable to make personal preparations.

Closely monitor NOAA Weather Radio or other local news outlets for
official storm information. Listen for possible changes to the
forecast.

* 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 Austin/San Antonio TX around 11 PM CDT, or sooner if
conditions warrant.

$$
This weather bulletin was brought to you by:
www.nashvilleweather.net