[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Tue Sep 15 05:22:02 CDT 2020
WTUS84 KLIX 151021
HLSLIX
LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-151830-
Hurricane Sally Local Statement Advisory Number 16
National Weather Service New Orleans LA AL192020
521 AM CDT Tue Sep 15 2020
This product covers Southeast Louisiana and South Mississippi
...Sally continues to move slowly in the northern Gulf of Mexico...
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- A Tropical Storm Warning has been issued and the Storm Surge
Warning and Hurricane Warning have been cancelled for Lower
Jefferson
- The Storm Surge Warning and Tropical Storm Warning have been
cancelled for Lower Lafourche
- A Tropical Storm Warning has been issued and the Hurricane
Warning has been cancelled for Ascension, Livingston, Lower
Plaquemines, Lower St. Bernard, Orleans, Southern Tangipahoa,
St. Charles, St. James, St. John The Baptist, St. Tammany,
Upper Jefferson, Upper Plaquemines, and Upper St. Bernard
- The Tropical Storm Warning has been cancelled for Assumption,
Lower Terrebonne, Upper Lafourche, and Upper Terrebonne
* CURRENT WATCHES AND WARNINGS:
- A Hurricane Warning is in effect for Pearl River
- A Storm Surge Warning and Tropical Storm Warning are in effect
for Ascension, Livingston, Lower Plaquemines, Lower St.
Bernard, Orleans, Southern Tangipahoa, St. Charles, St. John
The Baptist, St. Tammany, Upper Jefferson, Upper Plaquemines,
and Upper St. Bernard
- A Storm Surge Warning and Hurricane Warning are in effect for
Hancock, Harrison, and Jackson
- A Tropical Storm Warning is in effect for Lower Jefferson and
St. James
* STORM INFORMATION:
- About 150 miles east-southeast of New Orleans LA or about 120
miles south-southeast of Gulfport MS
- 28.9N 88.1W
- Storm Intensity 85 mph
- Movement West-northwest or 300 degrees at 2 mph
SITUATION OVERVIEW
------------------
Hurricane Sally is expected to continue to slowly move west-northwest
this morning before eventually turning northward and making landfall
along the Alabama Gulf Coast on Wednesday. Dangerous storm surge,
damaging winds and torrential rainfall are expected across the
Mississippi coastal counties.
POTENTIAL IMPACTS
-----------------
* SURGE:
Protect against life-threatening surge having possible extensive
impacts across coastal areas from the mouth of the Mississippi River
to the Mississippi/Alabama line mainly outside of the federal
hurricane protection system. Potential impacts in this area 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.
Also, protect against life-threatening surge having possible
significant to extensive impacts across the nearshore areas of Lake
Pontchartrain and Maurepas outside of the hurricane protection system,
Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.
* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
devastating impacts mainly across the coastal Mississippi counties.
Potential 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.
Protect against life-threatening rainfall flooding having possible
limited to extensive impacts across the extreme eastern portions of
Louisiana, mainly in St. Tammany, Orleans, St. Bernard and Plaquemines
Parishes.
Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.
* WIND:
Protect against life-threatening wind having possible devastating
impacts across coastal Mississippi. Potential impacts in this area
include:
- Structural damage to sturdy buildings, some with complete roof
and wall failures. Complete destruction of mobile homes. Damage
greatly accentuated by large airborne projectiles. Locations
may be uninhabitable for weeks or months.
- Numerous large trees snapped or uprooted along with fences and
roadway signs blown over.
- Many roads impassable from large debris, and more within urban
or heavily wooded places. Many bridges, causeways, and access
routes impassable.
- Widespread power and communications outages.
* TORNADOES:
Protect against a tornado event having possible limited impacts
across coastal 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.
Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
Listen to local official for recommended preparedness actions, including
possible evacuation. If ordered to evacuate, do so immediately.
For those not under evacuation orders, assess the risk from wind,
falling trees, and flooding at your location. If you decide to move,
relocate to a safer location nearby. If you do not relocate, help keep
roadways open for those under evacuation orders.
* OTHER PREPAREDNESS INFORMATION:
Now is the time to complete all preparations to protect life and
property in accordance with your emergency plan. Ensure you are in a
safe location before the onset of strong winds or possible flooding.
If you are relocating to safe shelter, leave as early as possible.
Allow extra time to reach your destination. Many roads and bridges
will be closed once strong winds arrive. Check the latest weather
forecast before departing and drive with caution.
If heading to a community shelter, become familiar with the shelter
rules before arrival, especially if you have special needs or have
pets. Take essential items with you from your Emergency Supplies Kit.
Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.
Keep cell phones well charged. Cell phone chargers for automobiles
can be helpful, but be aware of your risk for deadly carbon monoxide
poisoning if your car is left idling in a garage or other poorly
ventilated area.
It is important to remain calm, informed, and focused during an
emergency. Be patient and helpful with those you encounter.
If you are a visitor, be sure to know the name of the city or town in
which you are staying and the name of the county or parish in which
it resides. Listen for these locations in local news updates. Pay
attention for instructions from local authorities.
Storm surge is the leading killer associated with tropical storms and
hurricanes! Make sure you are in a safe area away from the surge
zone. Even if you are not in a surge-prone area, you could find
yourself cutoff by flood waters during and after the storm. Heed
evacuation orders issued by the local authorities.
Rapidly rising flood waters are deadly. If you are in a flood-prone
area, consider moving to higher ground. Never drive through a flooded
roadway. Remember, turn around don't drown!
If a Tornado Warning is issued for your area, be ready to shelter
quickly, preferably away from windows and in an interior room not
prone to flooding. If driving, scan the roadside for quick shelter
options.
If in a place that is vulnerable to high wind, such as near large
trees, a manufactured home, upper floors of a high-rise building, or
on a boat, consider moving to a safer shelter before the onset of
strong winds or flooding.
Closely monitor weather.gov, NOAA Weather radio or local news outlets
for official storm information. Be ready to adapt to possible changes
to the forecast. Ensure you have multiple ways to receive weather
warnings.
* 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 11 AM CDT, or sooner if conditions
warrant.
$$
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