St. Tammany County, Louisiana
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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: St. Tammany County, Louisiana
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Coastal Flood Advisory
LAZ040-050-058-060-061-072-261815-
/O.CON.KLIX.CF.Y.0002.000000T0000Z-180529T1200Z/
St. Tammany-Livingston-St. John The Baptist-St. Charles-
Upper Jefferson-Southern Tangipahoa-
506 AM CDT Sat May 26 2018

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
TUESDAY...

* COASTAL FLOODING...1 up to 3 feet above normal tides.

* TIMING...Sunday through at least early Tuesday.

* IMPACTS...Minor inundation of tidal areas around Lake
Pontchartrain and Maurepas outside of the hurricane risk
reduction levee system. Some minor flooding of lower reaches
of rivers and streams that drain into the tidal lakes.
Secondary roads may become impassible at high tides.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$
Flash Flood Watch
LAZ040-046>050-056>070-072-MSZ080>082-271015-
/O.EXT.KLIX.FF.A.0004.000000T0000Z-180530T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
St. Tammany-Iberville-West Baton Rouge-East Baton Rouge-Ascension-
Livingston-Assumption-St. James-St. John The Baptist-
Upper Lafourche-St. Charles-Upper Jefferson-Orleans-
Upper Plaquemines-Upper St. Bernard-Upper Terrebonne-
Lower Terrebonne-Lower Lafourche-Lower Jefferson-
Lower Plaquemines-Lower St. Bernard-Southern Tangipahoa-Hancock-
Harrison-Jackson-
Including the cities of Slidell, Mandeville, Covington, Lacombe,
Bayou Sorrel, Plaquemine, White Castle, Port Allen, Addis,
Brusly, Baton Rouge, Gonzales, Donaldsonville, Prairieville,
Denham Springs, Watson, Walker, Pierre Part, Labadieville,
Paincourtville, Convent, Lutcher, Gramercy, Laplace, Reserve,
Thibodaux, Raceland, Larose, Destrehan, Norco, Metairie, Kenner,
East New Orleans, New Orleans, Belle Chasse, Chalmette, Violet,
Houma, Bayou Cane, Chauvin, Cocodrie, Dulac, Montegut, Galliano,
Cut Off, Golden Meadow, Leeville, Buras, Pointe A La Hache,
Port Sulphur, Boothville, Venice, Empire, Myrtle Grove,
Yscloskey, Hammond, Robert, Ponchatoula, Bay St. Louis, Waveland,
Diamondhead, Gulfport, Pascagoula, Ocean Springs, Moss Point,
Gautier, and St. Martin
506 AM CDT Sat May 26 2018

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH TUESDAY EVENING...

The Flash Flood Watch is now in effect for

* portions of southeast Louisiana and Mississippi, including the
following areas, in southeast Louisiana, Ascension,
Assumption, East Baton Rouge, Iberville, Livingston, Lower
Jefferson, Lower Lafourche, Lower Plaquemines, Lower St.
Bernard, Lower Terrebonne, Orleans, Southern Tangipahoa, St.
Charles, St. James, St. John The Baptist, St. Tammany, Upper
Jefferson, Upper Lafourche, Upper Plaquemines, Upper St.
Bernard, Upper Terrebonne, and West Baton Rouge. In
Mississippi, Hancock, Harrison, and Jackson.

* through Tuesday evening

* For today, widespread 2 to 4 inches of rainfall likely in
swaths along lake and sea breeze boundaries. Some locally higher
amounts possible. Rain rates 2 to 3 inches per hour at times.

* For Sunday through Tuesday, Alberto will set the stage for
extended periods of heavy rainfall training. Several inches to
over a foot of rainfall may be possible in isolated locations.
The Mississippi Gulf coast has the highest potential for these
higher amounts.

* POTENTIAL IMPACTS OF FLOODING include flooding of streets and
low lying areas. Increased water levels on area rivers and
streams. High rain rates may briefly overwhelm pumping
capacities until rates diminish.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

Additional Flash Flood Watches may be extended in area and time
at a later time throughout the weekend as the situation unfolds.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

Hurricane Statement
LAZ040-049-050-057-058-060>064-068>070-072-MSZ077-080>082-261745-

Subtropical Storm Alberto Local Statement Advisory Number 4
National Weather Service New Orleans LA AL012018
439 AM CDT Sat May 26 2018

This product covers Southeast Louisiana and South Mississippi

**TROPICAL STORM AND STORM SURGE WATCHES IN EFFECT FOR PORTIONS OF
SOUTHEAST LOUISIANA AND COASTAL MISSISSIPPI**

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

* CHANGES TO WATCHES AND WARNINGS:
- None

* CURRENT WATCHES AND WARNINGS:
- A Storm Surge Watch and Tropical Storm Watch are in effect for
Hancock, Harrison, Jackson, Lower Plaquemines, Lower St.
Bernard, Orleans, and Upper St. Bernard
- A Tropical Storm Watch is in effect for Ascension, Livingston,
Lower Jefferson, Southern Tangipahoa, St. Charles, St. James,
St. John The Baptist, St. Tammany, Upper Jefferson, and Upper
Plaquemines

* STORM INFORMATION:
- About 750 miles south-southeast of New Orleans LA or about 760
miles south-southeast of Gulfport MS
- 19.9N 85.6W
- Storm Intensity 40 mph
- Movement North-northeast or 15 degrees at 7 mph

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

* OVERVIEW...At 400 AM CDT, Sub-Tropical Storm Alberto was moving
north-northeast near 7 mph off the coast of the Yucatan Peninsula. The
system is expected to continue moving north-northeast at a faster
speed later today, followed by a turn to the northwest on Sunday.
Tropical impacts should begin to be felt across Southeast Louisiana
and Southern Mississippi by late Sunday and Sunday night and persist
through Tuesday morning.

The primary impact will be heavy rainfall that could produce inland
flooding. Secondary impacts will be storm surge, tornadoes, and
tropical storm force winds.

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

* FLOODING RAIN:
Prepare for dangerous rainfall flooding having possible significant
impacts across portions of the Mississippi coast and extreme
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.

* WIND:
Prepare for hazardous wind having possible limited impacts across
Southeast Louisiana and South Mississippi. Potential 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.

* SURGE:
Prepare for life-threatening surge having possible significant
impacts across the immediate coast of Mississippi and also
for east facing shores outside of the hurricane protection system
in far Southeast Louisiana. Potential impacts in
this area include:
- Areas of inundation with storm surge flooding accentuated by
waves. Damage to several buildings, mainly near the coast.
- Sections of near-shore escape routes and secondary roads become
weakened or washed out, especially in usually vulnerable low
spots.
- Major beach erosion with heavy surf breaching dunes. Strong and
numerous rip currents.
- Moderate damage to marinas, docks, boardwalks, and piers.
Several small craft broken away from moorings, especially in
unprotected anchorages.

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

* 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 8 AM CDT, or sooner if conditions
warrant.

$$

Tropical Storm Watch
LAZ040-049-050-057-058-060-061-063-068-072-262000-
/O.CON.KNHC.TR.A.1001.000000T0000Z-000000T0000Z/
647 AM CDT SAT MAY 26 2018

$$

Tropical Storm Watch
LAZ040-262000-
/O.CON.KLIX.TR.A.1001.000000T0000Z-000000T0000Z/
St. Tammany-
657 AM CDT Sat May 26 2018

...TROPICAL STORM WATCH REMAINS IN EFFECT...

* LOCATIONS AFFECTED
- Slidell
- Mandeville
- Covington

* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 10-20 mph with gusts to 30 mph

- POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for wind 39 to
57 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: Plan for hazardous wind of equivalent tropical storm
force due to possible forecast changes in track, size, or
intensity.
- PREPARE: Efforts to protect property should now be
underway. Prepare for limited wind damage.
- ACT: Act now to complete preparations before the wind
becomes hazardous.

- POTENTIAL IMPACTS: Limited
- 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.

* STORM SURGE
- LATEST LOCAL FORECAST: Localized storm surge possible
- Peak Storm Surge Inundation: The potential for up to 2 feet
above ground somewhere within surge prone areas
- Window of concern: Begins Sunday morning

- POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for storm
surge flooding greater than 1 foot above ground
- The storm surge threat has remained nearly steady from the
previous assessment.
- PLAN: There is little to no threat of storm surge flooding.
Rough surf, coastal erosion, and life-threatening rip
currents are possible.
- PREPARE: Little to no preparations for storm surge flooding
are needed.
- ACT: Follow the instructions of local officials. Monitor
forecasts.

- REALIZED IMPACTS: Being Assessed
- Little to no additional surge impacts expected. Community
officials are now assessing the extent of actual surge
impacts accordingly.

* FLOODING RAIN
- LATEST LOCAL FORECAST: Flash Flood Watch is in effect
- Peak Rainfall Amounts: Additional 2-4 inches, with locally
higher amounts

- POTENTIAL THREAT TO LIFE AND PROPERTY: Potential for localized
flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
localized flooding from heavy rain.
- PREPARE: Consider protective actions if you are in an area
vulnerable to flooding.
- ACT: Heed any flood watches and warnings.

- POTENTIAL IMPACTS: Limited
- Localized rainfall flooding may prompt a few evacuations.
- Rivers and tributaries may quickly rise with swifter
currents. Small streams, creeks, canals, 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.

* TORNADO
- LATEST LOCAL FORECAST:
- Situation is unfavorable for tornadoes

- POTENTIAL THREAT TO LIFE AND PROPERTY: Tornadoes not expected
- The tornado threat has remained nearly steady from the
previous assessment.
- PLAN: Tornadoes are not expected. Showers and thunderstorms
with gusty winds may still occur.
- PREPARE: Little to no preparations needed to protect
against tornadoes at this time. Keep informed of the latest
tornado situation.
- ACT: Listen for changes in the forecast.

- POTENTIAL IMPACTS: Little to None
- Little to no potential impacts from tornadoes.

* FOR MORE INFORMATION:
- http://emergency.louisiana.gov

$$

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