[Tropical] Hurricane Local Statement

[EMWIN Server]

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LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-302330-

Tropical Storm Harvey Local Statement Advisory Number 41
National Weather Service New Orleans LA  AL092017
1027 AM CDT Wed Aug 30 2017

This product covers Southeast Louisiana and South Mississippi

...CENTER OF HARVEY MOVING FARTHER INLAND OVER SOUTHWESTERN
LOUISIANA...

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

* CHANGES TO WATCHES AND WARNINGS:
    - None

* CURRENT WATCHES AND WARNINGS:
    - A Tropical Storm Warning is in effect for Assumption, Lower
      Jefferson, Lower Lafourche, Lower Terrebonne, Upper Lafourche,
      and Upper Terrebonne

* STORM INFORMATION:
    - About 170 miles west-northwest of Houma LA or about 210 miles
      west-northwest of Grand Isle LA
    - 30.5N 93.3W
    - Storm Intensity 45 mph
    - Movement North-northeast or 20 degrees at 8 mph

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

At 1000 AM CDT, Tropical Storm Harvey is moving toward the north-
northeast near 8 mph and is expected to continue on this general
heading through tomorrow. The main impact across southeast Louisiana
and south Mississippi will be heavy rain and the potential for flash
flooding.

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

* FLOODING RAIN:
Prepare for locally hazardous rainfall flooding having possible
limited impacts across Southeast Louisiana and South Mississippi.
Potential impacts include:
    - Localized rainfall flooding may prompt a few evacuations.
    - Rivers and tributaries may quickly rise with swifter currents.
      Small streams, creeks, canals, bayous, and ditches may become
      swollen and overflow in spots.
    - Flood waters can enter a few structures, especially in usually
      vulnerable spots. A few places where rapid ponding of water
      occurs at underpasses, low-lying spots, and poor drainage
      areas. Several storm drains and retention ponds become
      near-full and begin to overflow. Some brief road and bridge
      closures.

* WIND:
Prepare for hazardous wind having possible limited impacts across areas
near the Atchafalaya Basin. Potential impacts in this area 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 Southeast Louisiana and South Mississippi, little to
no impact is anticipated.

* SURGE:
Prepare for locally hazardous surge having possible limited impacts
across the immediate coastal areas of Terrebonne, Lafourche and
Jefferson Parishes, including Grand Isle. Potential impacts in this
area 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 Southeast Louisiana and South Mississippi, little to
no impact is anticipated.

* TORNADOES:
Prepare for a tornado event having possible limited impacts across
Southeast Louisiana and South Mississippi. 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.

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

* OTHER PREPAREDNESS INFORMATION:
Always heed the advice of local officials and comply with any orders
that are issued. Do not needlessly jeopardize your life or the lives
of others.

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 New Orleans LA around 2 PM CDT, or sooner if conditions
warrant.

$$

95/DM
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