A strong thunderstorm produced wind damage in the Baton Rouge area.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LIX wrote it up.
A strong thunderstorm produced wind damage in the Baton Rouge area.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS New Orleans, LA wrote its last area forecast discussion before the first event at Aug 23, 2:38 PM CST, 1 hour 43 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
338 PM CDT MON AUG 23 2010
.SHORT TERM...
DEEP LAYER NORTHERLY FLOW ON THE EASTERN PERIPHERY OF A RIDGE OVER
THE SOUTHERN PLAINS AND A VERY STRONG TROUGH ACROSS THE EASTERN
SEABOARD WILL CONTINUE TO DOMINATE THE REGION THROUGH WEDNESDAY.
IN THE IMMEDIATE SHORT TERM...SOME SCATTERED CONVECTION ACROSS THE
NORTHSHORE AND COASTAL MISSISSIPPI WILL PERSIST THROUGH THE EARLY
EVENING HOURS. THIS DIURNALLY FORCED CONVECTION SHOULD QUICKLY
DISSIPATE AFTER SUNSET. AS THE DRY AIR CONTINUES TO SURGE SOUTH
ACROSS THE AREA TONIGHT...THE CHANCES FOR CONVECTIVE DEVELOPMENT
WILL DROP CONSIDERABLY ACROSS THE FORECAST AREA. IN
ADDITION...THIS DRIER AIRMASS COMBINED WITH CLEAR SKIES AND SOME
WEAK LOW LEVEL COLD AIR ADVECTION BEHIND A BACK DOOR COLD FRONT
WILL ALLOW TEMPERATURES TO DROP INTO THE LOWER TO MIDDLE 70S
ACROSS MOST OF THE REGION. DUE TO THIS...WILL NOT ISSUE ANY TYPE
OF HEAT ADVISORIES OR WARNINGS FOR THE REMAINDER OF THE WEEK.
WITH A DRY AND MORE STABLE AIRMASS IN PLACE TUESDAY AND
WEDNESDAY...LESS OVERALL CLOUD COVER IS EXPECTED. IN
ADDITION...STRONG THERMAL MIXING SHOULD ALLOW DEWPOINTS TO FALL
INTO THE MIDDLE 60S DURING THE DAY TOMORROW. TEMPERATURES WILL
REMAIN WARM DURING THE DAY...DUE TO THE COMBINATION OF AMPLE SOLAR
INSOLATION AND A SINKING AIRMASS...BUT OPPRESSIVE HEAT IS NOT
EXPECTED. IN ADDITION...STRONG CAPPING ALOFT WILL LIMIT MOST
CONVECTIVE ACTIVITY TUESDAY AND WEDNESDAY. HAVE WENT WITH A DRY
FORECAST TO REFLECT THIS INCREASED OVERALL STABILITY.
.LONG TERM...
HEADING INTO THE LATTER HALF OF THE WEEK...THE PATTERN WILL CHANGE
ONCE AGAIN. IN THE LOW TO MID-LEVELS...A STRONG AND PERSISTENT
RIDGE WILL DEVELOP OVER THE MID-ATLANTIC STATES. DEEP LAYER
SOUTHEASTERLY FLOW WILL SET UP ACROSS THE CENTRAL GULF COAST. THIS
ONSHORE FLOW WILL PULL THE WEAK BACK DOOR FRONT BACK INTO THE
REGION. THE FRONT IS THEN EXPECTED TO STALL ALONG THE GULF COAST
AND LINGER FOR SEVERAL DAYS. WITH THIS INCREASE IN LOW LEVEL
CONVERGENCE AND OVERALL MOISTURE...HAVE WENT WITH CHANCE POPS FOR
THE ENTIRE FORECAST AREA. THIS INCREASE IN MOISTURE AND CLOUD
COVER WILL ALSO ALLOW DAYTIME TEMPERATURES TO FALL BACK TO NEAR
NORMAL CONDITIONS. HOWEVER...OVERNIGHT LOWS WILL ALSO INCREASE
FROM THE LOWER TO MIDDLE 70S BACK INTO THE MIDDLE TO UPPER 70S.
THE SAME GENERAL PATTERN WILL LINGER INTO THE WEEKEND AS WELL.
&&
.AVIATION...
ISOLATED TSRA DEVELOPING FM HDC TO GPT AS EXPECTED...THUS UPGRADED
CB GROUPING IN 18Z TAFS TO INCLUDE VCTS AND TEMPO GROUP WITH MVFR
VSBYS AND CIGS OF 4-5K THROUGH 22Z AT GPT...HSA AND ASD. BASED ON FCST
SNDGS...CONVECTION SHOULD WANE BY 00-01 UTC. VFR CONDITIONS
GENERALLY WILL PREVAIL THROUGH THE TAF PERIOD. MAY NEED TO UPDATE
MSY...BTR AND HUM FOR SIMILAR CONDITIONS...BUT GIVEN DEEPER
INTRUSION OF DRY AIR AT MCB...AND FACT THAT TEMPS SLIGHTLY COOLER
THAN CONVECTIVE TEMPERATURES...FEEL CONVECTIVE DEVELOPMENT WL BE
LIMITED. ANY CONVECTION WILL BE DIURNALLY DRIVEN...THUS STORMS
SHOULD BEGIN TO WANE WITH SETTING SUN. LATER IN THE TAF
PERIOD...ENOUGH BOUNDARY LAYER MOISTURE WILL REMAIN SUCH THAT HZ/BR
LIKELY IN MANY LOCATIONS...BUT DO NOT HAVE A GOOD SENSE AS TO LOCAL
CLIMATOLOGY...THUS ONLY INTRODUCE SHORT PERIOD OF MVFR BR AT
BTR...BPT AND HUM FOR NOW.
&&
.MARINE...
PERSISTENT NORTH TO NORTHEAST FETCH OF WIND IS EXPECTED FOR THE
REST OF THE AFTERNOON HOURS...THEN WILL VEER TOWARD THE EAST AS
WEAK FRONTAL BOUNDARY PUSHES OFFSHORE AT SPEEDS AOB 10KTS. DUE TO
EASTERLY FETCH AND LIGHTER WINDS...SEAS WILL REMAIN IN THE 1 TO 2
FOOT RANGE THROUGH THE PERIOD. FRONTAL BOUNDARY WILL SERVE AS FOCUS
FOR MAINLY AFTERNOON ISOLD CONVECTION THROUGH MID WEEK. BETTER
CHANCES OF TSRA LATER IN THE WEEK AS WEAK DISTURBANCE ALLOW
BOUNDARY WINDS TO VEER AND STRENGTHEN FROM THE E-SE AND REDEFINE
FRONTAL BOUNDARY. SEAS WILL BEGIN TO INCREASE INTO THE 2-3 FOOT
RANGE DUE TO BETTER FETCH AND STRONGER LOW LEVEL GRADIENT.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 70 95 68 95 / 20 10 0 10
BTR 73 97 70 96 / 20 10 0 10
ASD 73 96 73 95 / 30 10 0 10
MSY 78 95 76 94 / 10 10 0 20
GPT 74 96 73 95 / 30 10 0 10
PQL 73 96 72 94 / 20 10 0 10
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...EXCESSIVE HEAT WARNING UNTIL 6 PM MONDAY FOR THE FOLLOWING
ZONES: ASCENSION...ASSUMPTION...EAST BATON ROUGE...EAST
FELICIANA...IBERVILLE...LIVINGSTON...LOWER
JEFFERSON...LOWER LAFOURCHE...LOWER PLAQUEMINES...LOWER ST.
BERNARD...LOWER TERREBONNE...ORLEANS...POINTE COUPEE...ST.
CHARLES...ST. HELENA...ST. JAMES...ST. JOHN THE
BAPTIST...ST. TAMMANY...TANGIPAHOA...UPPER
JEFFERSON...UPPER LAFOURCHE...UPPER PLAQUEMINES...UPPER ST.
BERNARD...UPPER TERREBONNE...WASHINGTON...WEST BATON
ROUGE...AND WEST FELICIANA.
GM...NONE.
MS...HEAT ADVISORY UNTIL 6 PM MONDAY FOR THE FOLLOWING ZONES:
AMITE...PIKE...WALTHALL...AND WILKINSON.
EXCESSIVE HEAT WARNING UNTIL 6 PM MONDAY FOR THE FOLLOWING
ZONES: HANCOCK...HARRISON...JACKSON...AND PEARL RIVER.
GM...NONE.
&&HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS LA 301 PM CDT MON AUG 23 2010 GMZ530-550-555-570-575-LAZ034>040-046>050-056>070-MSZ068>071-077- 080>082-241130- PASCAGOULA TO SW PASS MISSISSIPPI RIVER OUT 20 NM- PASCAGOULA TO SW PASS MISSISSIPPI RIVER 20-60 NM OUT- SW PASS MISSISSIPPI RIVER TO ATCHAFALAYA RIVER OUT 20 NM- SW PASS MISSISSIPPI RIVER TO ATCHAFALAYA RIVER 20-60 NM OUT-AMITE- ASCENSION-ASSUMPTION-EAST BATON ROUGE-EAST FELICIANA-HANCOCK- HARRISON-IBERVILLE-JACKSON-LAKES PONTCHARTRAIN AND MAUREPAS- LIVINGSTON-LOWER JEFFERSON-LOWER LAFOURCHE-LOWER PLAQUEMINES- LOWER ST BERNARD-LOWER TERREBONNE-ORLEANS-PEARL RIVER-PIKE- POINTE COUPEE-ST CHARLES-ST HELENA-ST JAMES-ST JOHN THE BAPTIST- ST TAMMANY-TANGIPAHOA-UPPER JEFFERSON-UPPER LAFOURCHE- UPPER PLAQUEMINES-UPPER ST BERNARD-UPPER TERREBONNE-WALTHALL- WASHINGTON-WEST BATON ROUGE-WEST FELICIANA-WILKINSON- 301 PM CDT MON AUG 23 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF COASTAL WATERS OF SOUTHEAST LOUISIANA AND SOUTH MISSISSIPPI...SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI. .DAY ONE...THIS AFTERNOON AND TONIGHT DANGEROUS HEAT STRESS LEVELS ARE EXPECTED TO CONTINUE TODAY WITH HEAT INDICES AROUND 110 DEGREES POSSIBLE ACROSS PORTIONS OF SOUTHEAST LOUISIANA AND COASTAL MISSISSIPPI...WHERE AN EXCESSIVE HEAT WARNING WILL REMAIN IN EFFECT THROUGH 6 PM. DRIER AIR WILL OVERSPREAD SOUTHWEST MISSISSIPPI...THUS HEAT INDEX READINGS NEAR 105 DEGREES ARE EXPECTED AND A HEAT ADVISORY IS IN EFFECT FOR THIS AREA THROUGH 6 PM. ISOLATED THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER PORTIONS OF COASTAL MISSISSIPPI AND SOUTHEAST LOUISIANA THROUGH THE EARLY EVENING HOURS. THESE THUNDERSTORMS COULD PRODUCE OCCASIONAL LIGHTNING STRIKES AND WINDS GUSTING TO 30 MPH. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THE OUTLOOK PERIOD...MAINLY FOR COASTAL AREAS AND THE GULF COASTAL WATERS. GUSTY WINDS...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL ARE POSSIBLE WITH THE STRONGER STORMS. HUMID CONDITIONS AND A CHANCE OF SHOWERS AND THUNDERSTORMS WILL RETURN FRIDAY THROUGH THE WEEKEND AS WARM FRONT SWEEP NORTH ACROSS THE AREA. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. 32
LAZ040-MSZ080-081-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 314 PM CDT MON AUG 23 2010 ...LINE OF STRONG THUNDERSTORMS MOVING SOUTHWEST AFFECTING HANCOCK COUNTY...ST. TAMMANY PARISH...HARRISON COUNTY... AT 310 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM 7 MILES WEST OF DIAMONDHEAD TO 6 MILES NORTH OF LONG BEACH...MOVING SOUTHWEST AT 15 MPH. THE LINE OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND... PASS CHRISTIAN...BAY ST. LOUIS...KILN...DIAMONDHEAD...STENNIS SPACE CENTER...AND SLIDELL. THE PRIMARY THREATS FROM THESE STORMS ARE FREQUENT LIGHTNING AND WIND GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. THESE STORMS COULD PRODUCE RAINFALL AMOUNTS OF ONE TO TWO INCHES IN A SHORT PERIOD OF TIME...RESULTING IN PONDING OF WATER AROUND LOW LYING ROADWAYS. REMEMBER...DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE DEPTH MAY BE TOO GREAT TO ALLOW A SAFE CROSSING. FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. 22/TD
LAZ038-058-232115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 317 PM CDT MON AUG 23 2010 ...STRONG THUNDERSTORM MOVING SOUTH AFFECTING TANGIPAHOA PARISH...ST. JOHN THE BAPTIST PARISH... AT 315 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A STRONG THUNDERSTORM 8 MILES EAST OF HAMMOND...OR ABOUT 3 MILES NORTH OF ROBERT...MOVING SOUTH AT 15 MPH. THE STRONG THUNDERSTORM WILL AFFECT AREAS IN AND AROUND...ROBERT... HAMMOND AND PONCHATOULA THE PRIMARY THREATS FROM THIS STORM ARE FREQUENT LIGHTNING AND WIND GUSTS TO NEAR 50 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THIS STORM HAS PASSED. 22/TD
LAZ038-040-058-061-062-232215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 408 PM CDT MON AUG 23 2010 ...LINE OF STRONG THUNDERSTORMS MOVING SOUTHWEST AFFECTING TANGIPAHOA PARISH...ST. JOHN THE BAPTIST PARISH...JEFFERSON PARISH...ORLEANS PARISH...ST. TAMMANY PARISH... AT 406 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM 5 MILES NORTH OF COVINGTON TO MANDEVILLE TO JUST WEST OF SLIDELL...MOVING SOUTHWEST AT 20 MPH. THE LINE OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND... MANDEVILLE...MADISONVILLE...LAKEFRONT AIRPORT...ROBERT...NEW ORLEANS...METAIRIE...PONCHATOULA...WAGGAMAN...KENNER...NEW ORLEANS ARMSTRONG AIRPORT AND HARAHAN THE PRIMARY THREATS FROM THESE STORMS ARE CONTINUOUS LIGHTNING AND WIND GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. THESE STORMS COULD PRODUCE RAINFALL AMOUNTS OF ONE TO TWO INCHES IN A SHORT PERIOD OF TIME...RESULTING IN PONDING OF WATER AROUND LOW LYING ROADWAYS. REMEMBER...DO NOT DRIVE YOUR VEHICLE INTO WATER COVERED ROADWAYS. THE DEPTH MAY BE TOO GREAT TO ALLOW A SAFE CROSSING. BE PREPARED TO TAKE QUICK ACTION IF A WARNING IS ISSUED. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE LOCAL MEDIA OUTLETS FOR FURTHER DETAILS OR UPDATES FROM THE NATIONAL WEATHER SERVICE. 22/TD
LAZ038-049-050-057-058-232245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 450 PM CDT MON AUG 23 2010 ...LINE OF STRONG THUNDERSTORMS MOVING SOUTHWEST AFFECTING LIVINGSTON PARISH...TANGIPAHOA PARISH...ST. JOHN THE BAPTIST PARISH...ST. JAMES PARISH...ASCENSION PARISH... AT 448 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM 20 MILES NORTHEAST OF LAPLACE TO 15 MILES NORTHEAST OF LAPLACE...MOVING SOUTHWEST AT 25 MPH. THE LINE OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND... RESERVE...EDGARD...WHITEHALL...LUTCHER...GRAMERCY AND GARYVILLE THE PRIMARY THREATS FROM THESE STORMS ARE FREQUENT LIGHTNING AND WIND GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. 22/TD
LAZ049-050-056>059-232300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NEW ORLEANS LA 454 PM CDT MON AUG 23 2010 ...LINE OF STRONG THUNDERSTORMS MOVING SOUTHWEST AFFECTING LIVINGSTON PARISH...ST. JOHN THE BAPTIST PARISH...ASSUMPTION PARISH...ST. JAMES PARISH...ASCENSION PARISH...LAFOURCHE PARISH... AT 452 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS FROM 12 MILES NORTHEAST OF GONZALES TO 16 MILES EAST OF GONZALES...MOVING SOUTHWEST AT 15 MPH. THE LINE OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND... GARYVILLE...GRAMERCY...LUTCHER...PRAIRIEVILLE...SORRENTO...CONVENT... GEISMER...THIBODAUX AND DONALDSONVILLE THE PRIMARY THREATS FROM THESE STORMS ARE FREQUENT LIGHTNING AND WIND GUSTS TO NEAR 40 MPH...WHICH COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. 22/TD
The national radar mosaic for the moment the first event began.
1 thunderstorm wind. Local standard time, as filed.
A few trees were reported down with one onto a shed and another onto a carport. Report was relayed by a Baton Rouge TV station. Event time was estimated by radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Louisiana in 2010Every state in 2010This day in weather historyWarnings in Louisiana, August 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 253920.