4:22 PM
— July 23rd, 4:00 AM
* WHAT...Moderate coastal flooding of up to 2 to 3 feet above
normally dry ground.
* WHERE...In Louisiana, Lower St. Bernard, Southeast St.
Tammany, Eastern Orleans and Lower Plaquemines Parishes. In
Mississippi, Southern Hancock, Southern Harrison and Southern
Jackson Counties.
* WHEN...Until 4 AM CDT Thursday.
* IMPACTS...Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
will be inundated. Some shoreline erosion will occur.
4:18 PM
— July 23rd, 6:30 AM
* WHAT...Southwest winds 25 to 35 kt with gusts up to 50 kt and
seas 8 to 13 ft. Seas of up to 3 to 6 feet within protected
waters.
* WHERE...All of the open Gulf waters and protected waters
including tidal lakes and sounds, excluding Lake Maurepas.
* WHEN...Tropical Storm force winds possible until Thursday
morning.
* IMPACTS...Tropical storm force winds and hazardous seas will
capsize or damage vessels and reduce visibility.
4:14 PM
— July 23rd, 12:15 AM
* LOCATIONS AFFECTED
- Necaise
- Sellers
* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 10-20 mph with gusts to 30 mph
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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.
- 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.
* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: No additional significant rainfall
forecast
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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:
- https://www.msema.org
4:14 PM
— July 23rd, 12:15 AM
* LOCATIONS AFFECTED
- Kiln
- Pearlington
- Bay St. Louis
- Diamondhead
- Waveland
* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 20-30 mph with gusts to 40 mph
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39
to 57 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: The sustained wind should remain less than tropical
storm force. Conditions may still be gusty.
- PREPARE: Listen for any instructions from local officials.
- ACT: Ensure emergency readiness should the forecast change.
- REALIZED IMPACTS: Being Assessed
- Little to no additional wind impacts expected. Community
officials are now assessing the extent of actual wind
impacts accordingly.
* STORM SURGE
- LATEST LOCAL FORECAST: Localized storm surge possible
- Peak Storm Surge Inundation: The potential for 1-3 feet
above ground somewhere within surge prone areas
- Window of concern: through Thursday morning
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm
surge flooding greater than 1 foot above ground
- The storm surge threat has decreased from the previous
assessment.
- PLAN: Shelter against storm surge flooding greater than 1
foot above ground.
- PREPARE: All flood preparations should be complete. Expect
flooding of low-lying roads and property.
- ACT: Stay away from storm surge prone areas. Continue to
follow the instructions of local officials.
- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main surge event are unfolding.
* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: No additional significant rainfall
forecast
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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:
- https://www.msema.org
4:14 PM
— July 23rd, 12:15 AM
* LOCATIONS AFFECTED
- Slidell
* WIND
- LATEST LOCAL FORECAST: Below tropical storm force wind
- Peak Wind Forecast: 15-25 mph with gusts to 45 mph
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39
to 57 mph
- The wind threat has remained nearly steady from the
previous assessment.
- PLAN: The sustained wind should remain less than tropical
storm force. Conditions may still be gusty.
- PREPARE: Listen for any instructions from local officials.
- ACT: Ensure emergency readiness should the forecast change.
- REALIZED IMPACTS: Being Assessed
- Little to no additional wind impacts expected. Community
officials are now assessing the extent of actual wind
impacts accordingly.
* STORM SURGE
- LATEST LOCAL FORECAST: Localized storm surge possible
- Peak Storm Surge Inundation: The potential for 1-3 feet
above ground somewhere within surge prone areas
- Window of concern: through Thursday morning
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for storm
surge flooding greater than 1 foot above ground
- The storm surge threat has decreased from the previous
assessment.
- PLAN: Shelter against storm surge flooding greater than 1
foot above ground.
- PREPARE: All flood preparations should be complete. Expect
flooding of low-lying roads and property.
- ACT: Stay away from storm surge prone areas. Continue to
follow the instructions of local officials.
- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main surge event are unfolding.
* FLOODING RAIN
- LATEST LOCAL FORECAST:
- Peak Rainfall Amounts: No additional significant rainfall
forecast
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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
- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: 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:
- https://gohsep.la.gov/emergency
4:32 PM
— July 23rd, 12:45 AM
HLSLIX
This product covers Southeast Louisiana and South Mississippi
TROPICAL STORM BERTHA HAS MADE LANDFALL IN ST. BERNARD PARISH, LA.
OBSERVED TROPICAL STORM CONDITIONS ARE MOVING INLAND OVER PORTIONS OF
COASTAL SOUTHEAST LOUISIANA.
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- None
* CURRENT WATCHES AND WARNINGS:
- A Tropical Storm Warning is in effect for Central Jefferson,
Central Plaquemines, Central St. Charles, Coastal Jefferson,
Eastern Orleans, Lower Lafourche, Lower Plaquemines, Lower St.
Bernard, Lower St. Charles, Lower Terrebonne, Southeast St.
Tammany, Southern Hancock, Southern Harrison, Southern Jackson,
Upper Jefferson, Upper Plaquemines, Upper St. Bernard, Upper
St. Charles, and Western Orleans
- A Tropical Storm Watch is in effect for Northern Hancock,
Northern Harrison, Northern Jackson, St. John The Baptist,
Upper Lafourche, and Upper Terrebonne
* STORM INFORMATION:
- About 30 miles east-southeast of New Orleans LA or about 60
miles southwest of Gulfport MS
- 29.8N 89.8W
- Storm Intensity 45 mph
- Movement West or 270 degrees at 7 mph
SITUATION OVERVIEW
------------------
Tropical Storm Bertha made landfall near the Biloxi Wildlife
Management Area in St. Bernard Parish, Louisiana at around 200 PM CDT.
The storm continues to move westward and inland into southeast
Louisiana where it will be capable of producing wind gusts upwards of
45 to 50 mph at times within the tropical storm warning and watch
areas, especially near the coastal areas of southeast Louisiana.
Coastal flooding has been observed at the Shell Beach and Waveland
observation stations and additional minor to moderate coastal flooding
upwards of 2 to 3 feet is expected during the high tide cycle for
portions of coastal Louisiana and Mississippi through Thursday
morning.
Light to moderate rainfall is occurring with this storm over land
areas though additional heavier rainfall will be possible through
Thursday for coastal areas of Mississippi and southeast Louisiana. The
threat of excessive rainfall has decreased for areas along and north
of the I-10/12 corridor.
No changes have been made to Tropical Storm Warnings or Watches with
this advisory package. No changes to Coastal Flood Warnings and
Advisories have been changed with this advisory package.
POTENTIAL IMPACTS
-----------------
* WIND:
Prepare for hazardous wind having possible limited impacts across
portions of Coastal Southeast Louisiana and Coastal Mississippi.
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 portions of Coastal Southeast Louisiana and Coastal
Mississippi. 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.
* FLOODING RAIN:
Prepare for locally hazardous rainfall flooding having possible limited
impacts across Coastal Southeast Louisiana and Coastal 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, 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.
* TORNADOES:
No impacts are anticipated at this time across Southeast Louisiana and
South Mississippi.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
Follow the advice of local officials.
* OTHER PREPAREDNESS INFORMATION:
Always heed the advice of local officials and comply with orders that
are issued. Do not needlessly jeopardize your life or the lives of
others.
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.
Check on those who may not be fully aware of the situation or who are
unable to make personal preparations.
If you are a visitor, know the name of the county or parish in which
you are located and where it is relative to current watches and
warnings. If staying at a hotel, ask the management staff about their
onsite disaster plan. Listen for evacuation orders, especially
pertaining to area visitors.
Closely monitor weather.gov, NOAA Weather Radio and 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 , or sooner if conditions warrant.
4:22 PM
— July 23rd, 4:00 AM
* WHAT...Minor coastal flooding.
* WHERE...St. John The Baptist, Western Orleans, Southwestern
St. Tammany, Lower Tangipahoa, Coastal Jefferson, Lower
Lafourche, Lower Terrebonne and Upper St. Charles Parishes.
* WHEN...Until 4 AM CDT Thursday.
* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.