[Tropical] Hurricane Local Statement

EMWIN Server emwin at nashvilleweather.net
Sat Aug 26 13:11:22 CDT 2017


WTUS84 KCRP 261811
HLSCRP
TXZ229>234-239>247-270215-

Tropical Storm Harvey Local Statement Intermediate Advisory Number 25A
National Weather Service Corpus Christi TX  AL092017
111 PM CDT Sat Aug 26 2017

This product covers SOUTH TEXAS

**HARVEY BECOMES A TROPICAL STORM INLAND OVER SOUTH TEXAS**


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

* CHANGES TO WATCHES AND WARNINGS:
    - The Hurricane Warning has been cancelled and a Tropical Storm
      Warning has been issued for Goliad and Victoria

* CURRENT WATCHES AND WARNINGS:
    - A Storm Surge Warning and Tropical Storm Warning are in effect
      for Aransas, Calhoun, Refugio, and Victoria
    - A Tropical Storm Warning is in effect for Bee, Goliad, Jim
      Wells, Kleberg, Live Oak, Nueces, and San Patricio

* STORM INFORMATION:
    - About 90 miles west-northwest of Port Oconnor TX
    - 29.1N 97.6W
    - Storm Intensity 70 mph
    - Movement North-northwest or 340 degrees at 2 mph

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

Harvey has been downgraded to a Tropical Storm. Tropical Storm
Warning is in effect for the Coastal Bend, Victoria Crossroads, and
the Middle Texas coastal waters. Tropical Storm Harvey will continue
to move slowly northwest today across South Texas. Harvey will slow
down and stall northwest of Cuero tonight and then drift southeast
back toward the coast Sunday through Tuesday.

Tropical storm force winds will continue to impact portions of South
Texas generally east of Highway 281 and over the coastal waters for
today.

Catastrophic life-threatening flooding is still expected due to the
heavy rainfall that is expected over the next several days. Storm
total rainfall accumulations will be as much as 15 to 30 inches of
rainfall with isolated 40 inches across eastern portions of South
Texas, mainly east of a line from Beeville to Rockport. West of that
area up to Highway 16, generally 5 to 15 inches of rainfall will be
possible. West of Highway 16, generally 5 inches or less of rainfall
is expected.

Storm surge inundation will remain from 4 to 7 feet from Port Aransas
to Port Lavaca today. Flooding from storm surge inundation will
gradually subside through the day. South of Port Aransas, offshore
winds have provided a significant decrease in tide levels.

Isolated tornadoes will be possible along and to the east of a line
from Port Aransas to Beeville.

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

* FLOODING RAIN:
Potential impacts from the flooding rain are still unfolding across
the Coastal Bend and Victoria Crossroads area, mainly east of Highway
16. Remain well guarded against life-threatening flood waters having
possible catastrophic 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.



* SURGE:
Impacts from the surge event are now unfolding across the Middle Texas
coast between Port Aransas and Port Lavaca. Tide inundation levels
will continue to be from 4 to 7 feet AGL. Remain well away from
life-threatening surge having additional extensive impacts. If
realized, these impacts 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.

* WIND:
Potential impacts from the main wind event are now unfolding across
the Coastal Bend and Victoria Crossroads area, mainly east of Highway
281. If realized, these impacts 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, causeways, and
      access routes impassable.
    - Large areas with power and communications outages.

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

* TORNADOES:
Potential impacts from tornadoes are still unfolding across the
Victoria Crossroads. 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.

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

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

* EVACUATIONS:

RECOVERY PHASE - Do not return to evacuated areas until it is safe.
Listen for the all-clear signal from local authorities.

* 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 Corpus Christi TX around 4 PM CDT, or sooner if conditions
warrant.

$$

89
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