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LAZ034>037-039-046>048-056>058-064-070-071-076>087-089>100-MSZ068>071-077-083>088-221130-
TROPICAL STORM BERTHA LOCAL STATEMENT ADVISORY NUMBER 11
NATIONAL WEATHER SERVICE NEW ORLEANS LA AL022026
1022 PM CDT TUE JUL 21 2026
THIS PRODUCT COVERS SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI
TROPICAL STORM WARNINGS ISSUED FOR THE CITY OF NEW ORLEANS INCLUDING
ORLEANS, JEFFERSON, ST. CHARLES AND UPPER PLAQUEMINES PARISHES AS WELL
AS LOWER TERREBONNE PARISH.
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 160 MILES EAST-SOUTHEAST OF NEW ORLEANS LA OR ABOUT 110
MILES SOUTHEAST OF GULFPORT MS
- 29.4N 87.7W
- STORM INTENSITY 60 MPH
- MOVEMENT WEST OR 270 DEGREES AT 6 MPH
SITUATION OVERVIEW
------------------
TROPICAL STORM BERTHA IS CURRENTLY SOUTH OF MOBILE BAY AND WILL
CONTINUE ITS WESTWARD TRACK. IT HAS REACHED ITS MAXIMUM STRENGTH WITH
WINDS AT 60 MPH AND IS EXPECTED TO WEAKEN SLOWLY. BERTHA IS FORECAST
TO BRING THE THREAT OF TROPICAL STORM FORCE WIND GUSTS TO COASTAL
AREAS OF PLAQUEMINES, JEFFERSON, LAFOURCHE, AND TERREBONNE PARISHES
AND LOCALLY HEAVY RAINFALL GENERALLY SOUTH OF I-10, AND COASTAL
FLOODING OF UP TO 2 TO 4 FEET ABOVE NORMALLY DRY GROUND. THE COASTAL
AREAS OF MISSISSIPPI AND SOUTHEAST LOUISIANA WILL HAVE THE GREATEST
THREAT, ESPECIALLY ALONG AND SOUTH OF I-10.
COASTAL FLOOD WARNINGS ARE IN EFFECT FOR COASTAL MISSISSIPPI AND
SOUTHEAST ST. TAMMANY TO THE MOUTH OF THE MISSISSIPPI RIVER. COASTAL
FLOOD ADVISORIES ARE IN EFFECT FOR NORTH AND WEST SHORES OF LAKE
PONTCHARTRAIN AND THE JEFFERSON/LAFOURCHE PARISH LINE TO MORGAN CITY,
LOUISIANA.
TROPICAL STORM WARNINGS ARE NOW IN EFFECT FOR THE NEW ORLEANS METRO
AREA AS WELL AS LAKE PONTCHARTRAIN AND LAKES SALVADOR AND
CATOAOUATCHE. ALONG THE COAST, TROPICAL STORM WARNINGS ARE NOW IN
EFFECT FROM THE BAY/GULF COUNTY LINE IN FLORIDA BORDER WEST TO MORGAN
CITY, LOUISIANA. ADDITIONALLY, TROPICAL STORM WATCHES REMAIN IN EFFECT
FOR ST. JOHN PARISH, INLAND PORTIONS TERREBONNE AND LAFOURCHE
PARISHES, LAKE MAUREPAS, AS WELL AS INLAND PORTIONS OF COASTAL
MISSISSIPPI COUNTIES OF JACKSON, HARRISON, AND HANCOCK.
POTENTIAL IMPACTS
-----------------
* WIND:
PROTECT AGAINST HAZARDOUS WIND HAVING POSSIBLE LIMITED IMPACTS ACROSS
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:
PROTECT AGAINST LIFE-THREATENING SURGE HAVING POSSIBLE SIGNIFICANT
IMPACTS ACROSS COASTAL LOUISIANA AND MISSISSIPPI. 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.
ELSEWHERE ACROSS SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI, LITTLE TO
NO IMPACT IS ANTICIPATED.
* FLOODING RAIN:
PROTECT AGAINST 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, 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:
LITTLE TO 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:
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.
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.
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 4 AM CDT, OR SOONER IF CONDITIONS
WARRANT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
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