[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Mon Aug 24 22:10:58 CDT 2020
WTUS84 KLIX 250310
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LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-251115-
Tropical Storm Laura Local Statement Advisory Number 21
National Weather Service New Orleans LA AL132020
1010 PM CDT Mon Aug 24 2020
This product covers Southeast Louisiana and South Mississippi
**TROPICAL STORM LAURA WILL CONTINUE TO APPROACH THE LOUISIANA COAST
ON TUESDAY**
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- None
* CURRENT WATCHES AND WARNINGS:
- A Storm Surge Watch is in effect for Hancock, Harrison,
Livingston, 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 Watch and Tropical Storm Watch are in effect for
Assumption, Iberville, Lower Jefferson, Lower Lafourche, Lower
Plaquemines, Lower Terrebonne, Upper Lafourche, and Upper
Terrebonne
- A Tropical Storm Watch is in effect for Pointe Coupee and West
Baton Rouge
* STORM INFORMATION:
- About 630 miles southeast of New Orleans LA or about 620 miles
south-southeast of Gulfport MS
- 22.7N 84.0W
- Storm Intensity 65 mph
- Movement West-northwest or 290 degrees at 20 mph
SITUATION OVERVIEW
------------------
Tropical Storm Laura is currently moving into southeastern portions
of the Gulf of Mexico. This system is expected to strengthen into a
hurricane as it approaches coast of Southwest Louisiana and Upper
Texas on Wednesday.
POTENTIAL IMPACTS
-----------------
* SURGE:
Prepare for life-threatening surge having possible significant impacts
across all coastal areas of Southeast Louisiana and Mississippi
to the west of Ocean Springs. 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, prepare for life-threatening surge having possible limited
impacts across coastal areas of Mississippi to the east of Ocean
Springs.
* WIND:
Prepare for dangerous wind having possible significant impacts
along the Atchafalaya River. 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.
Also, prepare for hazardous wind having possible limited impacts
across the remainder of Southeast Louisiana, Coastal Mississippi,
and Southwest Mississippi..
* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across all of Coastal Mississippi and Southeast Louisiana.
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, 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.
Prepare for locally hazardous rainfall flooding having possible
limited impacts across Southwest Mississippi.
* 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
----------------------------------
* 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.
If evacuating, leave with a destination in mind and allow
extra time to get there. Take your emergency supplies kit.
Gas up your vehicle ahead of time.
If evacuating, follow designated evacuation routes. Seek
traffic information on roadway signs, the radio, and
from official sources.
* OTHER PREPAREDNESS INFORMATION:
Now is the time to check your emergency plan and emergency supplies
kit and take necessary actions to protect your family and secure your
home or business.
When making safety and preparedness decisions, do not focus on the
exact forecast track since hazards such as flooding rain, damaging
wind gusts, storm surge, and tornadoes extend well away from the
center of the storm.
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, plan to move to safe shelter.
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 near an already swollen river, plan to
move to safe shelter on higher ground.
When securing your property, outside preparations should be concluded
as soon as possible before conditions deteriorate. The onset of
strong gusty winds or flooding can cause certain preparedness
activities to become unsafe.
Be sure to let friends and family members know of your intentions for
weathering the storm and your whereabouts. Have someone located away
from the threatened area serve as your point of contact. Share vital
contact information with others. Keep cell phones handy and charged.
Check on those who may not be fully aware of the situation or who are
unable to make personal preparations.
Closely monitor weather.gov, NOAA Weather Radio and local news
outlets for official storm information. Listen for possible changes
to the forecast.
There is a threat from tornadoes with this storm. Have multiple ways
to receive Tornado Warnings. Be ready to shelter quickly.
* 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 5 AM CDT, or sooner if conditions
warrant.
$$
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