[Tropical] Hurricane Local Statement

[EMWIN Server]

WTUS84 KCRP 271205
HLSCRP
TXZ230>234-240>247-272015-

Tropical Storm Harvey Local Statement Intermediate Advisory Number 28A
National Weather Service Corpus Christi TX  AL092017
705 AM CDT Sun Aug 27 2017

This product covers SOUTH TEXAS

**Tropical Storm Harvey remains nearly stationary across South
Texas**

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Bee, Goliad, and
      Victoria
    - A Storm Surge Warning is in effect for Calhoun

* STORM INFORMATION:
    - About 90 miles north-northwest of Port Aransas TX or about 80
      miles west-northwest of Port Oconnor TX
    - 29.0N 97.6W
    - Storm Intensity 45 mph
    - Movement South-southeast or 160 degrees at 1 mph

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

Tropical Storm Harvey is expected to weaken to a depression later
today. It is expected to move very slowly southeast through Monday and
then slowly northward on Tuesday and Wednesday. The net result is
Harvey will continue to impact South Texas through midweek.

Given the slow movement of Harvey, the main concern will be from
catastrophic life-threatening flooding. Storm total rainfall amounts
between 15 and 25 inches with isolated amounts of 30 inches or more
will be possible generally east of a line from Rockport to Goliad.

Storm surge flooding as high as 2 to 4 feet above ground level will
continue this morning in Matagorda Bay. 1 to 3 feet above ground level
inundation will occur this morning across San Antonio Bay. Water
levels across both Matagorda and San Antonio Bays will continue to
slowly fall today.

Isolated tornadoes will be possible along and to the east of a line
from Rockport to Goliad today.

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

* FLOODING RAIN:
Potential impacts from the flooding rain will unfold across an area
east of a line from Rockport to Goliad. 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:
Potential impacts from the main surge event continue across Matagorda
Bay. 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 near where higher surge waters move ashore.
    - Sections of near-shore roads and parking lots 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, boardwalks,
      and piers. A few small craft broken away from moorings.

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

* WIND:
Potential impacts from the main wind event are now unfolding across
the northern portions of Bee, Goliad, and Victoria counties. If
realized, these impacts include:
    - Damage to porches, awnings, carports, sheds, and unanchored
      mobile homes. Unsecured lightweight objects blown about.
    - Many large tree limbs broken off. A few trees snapped or
      uprooted, but with greater numbers in places where trees are
      shallow rooted. Some fences and roadway signs blown over.
    - A few roads impassable from debris, particularly within urban
      or heavily wooded places. Hazardous driving conditions on
      bridges and other elevated roadways.
    - Scattered power and communications outages.

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

* TORNADOES:
Potential impacts from tornadoes are still unfolding across an
area east of a line from Rockport to Goliad. 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:

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

* OTHER PREPAREDNESS INFORMATION:
When clearing out fallen trees, be careful with chain saws and axes.
Always wear protective gear and keep others at a safe distance. Use
these tools according to operating manuals and safety instruction.
Leaning trees and those which have fallen on roof tops can be
especially challenging. If you are not in good health or unsure about
what you are doing, have someone else with tree cutting experience do
the job. Never cut trees without a partner.

If using a generator, avoid carbon monoxide poisoning by following
instructions by the manufacturer. Make sure that the generator is run
in a well ventilated space.

Problems with sewer backups can further contaminate standing flood
waters. Keep children away. Also, listen for boil water alerts
relative to communities whose tap water may have become non-potable.

* 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 1030 AM CDT, or sooner if
conditions warrant.

$$

MB
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