Clusters of strong to severe thunderstorms moved across southwest Louisiana throughout the day on August 5, producing several reports of wind damage and flooding.
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 LCH wrote it up.
Clusters of strong to severe thunderstorms moved across southwest Louisiana throughout the day on August 5, producing several reports of wind damage and flooding.
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 Lake Charles, LA wrote its last area forecast discussion before the first event at Aug 5, 8:41 AM CST, 3 hours 19 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
941 AM CDT THU AUG 5 2010
.UPDATE...
SEEING A BIT MORE CONVECTION ON RADAR THIS MORNING COMPARED TO THE
PAST COUPLE OF DAYS. LOOKS LIKE AN EASTERLY WAVE/INVERTED TROF
WILL TRY TO COME AROUND THE UPPER LEVEL RIDGE AND INTO THE
FORECAST AREA TODAY. THIS WILL ALLOW CONVECTION TO DEVELOP...ESPECIALLY
OVER THE EASTERN ZONES BY AFTERNOON. STORMS HAVE BEEN A LITTLE
ROBUST OVER THE COASTAL WATERS...AND ALSO ACTIVITY AROUND BATON
ROUGE SLOWLY HEADING THIS WAY. WILL ADD SOME WORDING TO THE MARINE
ZONES OF LOCALLY HIGHER WINDS AND SEAS NEAR STORMS. STORMS LATER
THIS AFTERNOON MAY ALSO PRODUCE SOME STRONG WINDS...FREQUENT
LIGHTNING...AND HEAVY RAINFALL.
AS FAR AS TEMPERATURES GO...DUE TO EARLIER CONVECTION AND
CLOUDS...TEMPERATURES RUNNING A TAD LOWER THIS MORNING THAN
YESTERDAY. WILL KEEP HEAT ADVISORY GOING AS AFTERNOON HEAT INDEX
VALUES WILL BE CLOSE ENOUGH TO LOCAL CRITERIA...ESPECIALLY OVER
WESTERN ZONES AND AWAY FROM ANY CONVECTION.
RUA
&&
.PREV DISCUSSION... /ISSUED 637 AM CDT THU AUG 5 2010/
AVIATION...SCATTERED TSTMS MOVING INTO THE AEX TERMINAL WITH
GUSTS TO 25 KNOTS AND IFR VIS IN TEMPO HEAVY RAIN OVER THE NEXT
COUPLE OF HOURS. OTHERWISE VFR TODAY FOR THE TERMINALS WITH
MENTION OF CB FOR ALL BY LATE MORNING...VCTS FOR ARA AND LFT AS AN
INVERTED TROF BRINGS IN SOME ADDITIONAL MOISTURE.
SWEENEY
PREV DISCUSSION... /ISSUED 551 AM CDT THU AUG 5 2010/
DISCUSSION...
LATEST UPPER AIR ANALYSIS/WATER VAPOR IMAGERY SHOWED E-W ORIENTED MID/UPPER
LEVEL RIDGE AXIS TO OUR NORTH/NORTHWEST...WITH MULTIPLE SMALL EMBEDDED
VORT LOBES EMBEDDED IN THE EAST/NORTHEAST FLOW OVER THE REGION. SFC PATTERN
CONTINUES TO BE RATHER NON-DESCRIPT...WITH HIGH PRESSURE STRETCHING
ACROSS THE NORTHERN GULF.
REGIONAL RADARS SHOW ISOLATED CONVECTION ALREADY UNDERWAY...WITH A
DECENT LITTLE CLUSTER SLOWLY SPREADING FROM AVOYELLES PARISH INTO
RAPIDES. OBVIOUS MCV FROM EARLIER CONVECTION TO OUR EAST WAS NOTED
IN BOTH SATELLITE AND RADAR IMAGERY OVER SOUTH CENTRAL LOUISIANA...WITH
ANOTHER MORE SUBTLE ON POSSIBLY OVER SOUTH CENTRAL MS. THE FORMER ALMOST
CERTAINLY CONTRIBUTED TO THE CONVECTIVE DEVELOPMENT OVER EAST CENTRAL
LOUISIANA. THESE FEATURES...ALONG WITH THE SUBTLE VORT LOBES...WILL
CONTINUE TO TRACK WEST/SOUTHWEST ACROSS THE GULF COAST REGION.
THIS GENERAL PATTERN WILL HOLD THROUGH AT LEAST THE FIRST HALF OF
THE WEEKEND...SO EASTERN ZONE POPS THROUGH SATURDAY WERE INCREASED
SLIGHTLY FROM PREVIOUS FORECAST...BUT STILL REMAIN BELOW NUMERICAL
MOS GUIDANCE...WHICH IN SOME CASES HAS SHOT UP QUITE DRAMATICALLY.
GIVEN THE RATHER PALTRY CONVECTIVE ACTIVITY THE PAST COUPLE OF
DAYS...WOULD PREFER TO SEE HOW TODAY PANS OUT BEFORE ANY FURTHER
INCREASES ARE MADE.
ASSUMING THAT CONVECTION REMAINS ON THE ISOLATED TO PERHAPS
SCATTERED SIDE TODAY...FORECAST TEMPERATURES IN COMBINATION WITH
DEWPOINTS PROGGED IN THE LOWER TO MID 70S ARE STILL ON TARGET TO
YIELD HEAT INDEX VALUES AOA 108 DEGREES. THUS...THE INHERITED HEAT
ADVISORY WILL CONTINUE. TEMPERATURES TOMORROW LOOK TO BE A LITTLE
COOLER...WITH MOT MUCH ADDITIONAL CHANGE THROUGH THE WEEKEND.
AS A RESULT...DERIVED APPARENT TEMPERATURES ARE COMING UP A LITTLE
SHY OF HEAT ADVISORY CRITERIA...BUT IT WILL BE A CLOSE CALL. FOR
NOW...CONCUR WITH PREVIOUS FORECASTER AND WILL LEAVE OUT...BUT
WILL CONTINUE TO MONITOR TRENDS.
FORECAST EARLY NEXT WEEK BECOMING A LITTLE MORE COMPLICATED...AS
THE RIDGE REBUILDS...BUT CENTERED FARTHER NORTH...AND A TROF DIGS
ACROSS THE EASTERN CONUS. GLOBAL MODELS SHOW THE BASE OF THE TROF
PINCHING OFF AND RETROGRADING WESTWARD OVER THE NORTHERN GULF
UNDERNEATH THE RIDGE...AND THERE IS INCREASING MODEL SUPPORT FOR A
SFC REFLECTION TO DEVELOP...WITH A COUPLE OF THEM SHOWING SOME
DEGREE OF WARM CORE TRANSITION. PROGS AT THIS TIME POINT TO THE
FEATURE REMAINING TO OUR EAST...BUT IT IS SOMETHING THAT WILL BEAR
WATCHING IN SUBSEQUENT MODEL RUNS.
MARINE...
LIGHT ONSHORE WINDS AND LOW SEAS ARE EXPECTED THROUGH THE WEEK AS
HIGH PRESSURE REMAINS SITUATED OVER THE GULF OF MEXICO...WITH
ISOLATED TO WIDELY SCATTERED SHOWERS AND THUNDERSTORMS EXPECTED
THROUGH MUCH OF THE PERIOD.
&&
.PRELIMINARY POINT TEMPS/POPS...
KLCH 95 80 95 79 95 / 30 20 30 20 30
KBPT 96 78 96 79 96 / 20 20 20 20 20
KAEX 99 78 97 78 97 / 40 20 40 20 40
KLFT 95 81 95 79 95 / 40 20 40 20 40
&&
.LCH WATCHES/WARNINGS/ADVISORIES...
LA...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING
ZONES: ACADIA...ALLEN...AVOYELLES...BEAUREGARD...
CALCASIEU...CAMERON...EVANGELINE...IBERIA...JEFFERSON
DAVIS...LAFAYETTE...LOWER ST. MARTIN...RAPIDES...ST.
LANDRY...ST. MARY...UPPER ST. MARTIN...VERMILION...VERNON.
TX...HEAT ADVISORY UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING
ZONES: HARDIN...JASPER...JEFFERSON...NEWTON...ORANGE...
TYLER.
GM...NONE.
&&HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAKE CHARLES LA 605 AM CDT THU AUG 5 2010 LAZ027>033-041>045-051>055-TXZ180>182-201-215-216-061115- VERNON-RAPIDES-AVOYELLES-BEAUREGARD-ALLEN-EVANGELINE-ST. LANDRY- CALCASIEU-JEFFERSON DAVIS-ACADIA-LAFAYETTE-UPPER ST. MARTIN- CAMERON-VERMILION-IBERIA-ST. MARY-LOWER ST. MARTIN-TYLER-JASPER- NEWTON-HARDIN-JEFFERSON-ORANGE- 605 AM CDT THU AUG 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL LOUISIANA...SOUTH CENTRAL LOUISIANA...SOUTHWEST LOUISIANA...WEST CENTRAL LOUISIANA AND SOUTHEAST TEXAS. .DAY ONE...TODAY AND TONIGHT A HEAT ADVISORY IS IN EFFECT FROM 11 AM TO 7 PM. THE COMBINATION OF HIGH TEMPERATURES IN THE UPPER 90S TO LOW 100S...ALONG WITH HIGH RELATIVE HUMIDITY LEVELS...WILL RESULT IN THE HEAT INDEX...OR THE APPARENT TEMPERATURE AS PERCEIVED BY HUMANS...REACHING FROM 105 TO 110 DEGREES DURING THE AFTERNOON. THESE VALUES WILL RESULT IN DANGEROUS HEAT FOR ANY OUTDOOR ACTIVITIES. ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY HOT AND HUMID CONDITIONS WILL CONTINUE THROUGH THE PERIOD. ADDITIONAL HEAT ADVISORIES ARE NOT EXPECTED AT THIS TIME...WITH HEAT INDEX VALUES FORECAST TO REMAIN BELOW 108 DEGREES. THE CHANCE FOR SHOWERS AND THUNDERSTORMS WILL ALSO CONTINUE TO BE POSSIBLE. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE REQUIRED. GMZ430-432-435-450-452-455-470-472-475-061115- SABINE LAKE-CALCASIEU LAKE-VERMILION BAY- COASTAL WATERS FROM CAMERON, LA TO HIGH ISLAND, TX OUT 20 NM- COASTAL WATERS FROM INTRACOASTAL CITY TO CAMERON, LA OUT 20 NM- COASTAL WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA OUT 20 NM- WATERS FROM CAMERON, LA TO HIGH ISLAND, TX EXTENDING FROM 20 NM TO 60 NM- WATERS FROM INTRACOASTAL CITY, LA TO CAMERON, LA EXTENDING FROM 20 NM TO 60 NM- WATERS FROM LOWER ATCHAFALAYA RIVER TO INTRACOASTAL CITY, LA EXTENDING FROM 20 NM TO 60 NM- 605 AM CDT THU AUG 5 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE NORTHWEST GULF OF MEXICO. .DAY ONE...TODAY AND TONIGHT LIGHT WINDS AND LOW SEAS WILL CONTINUE. ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY LIGHT WINDS AND LOW SEAS WILL CONTINUE. ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE THROUGH THE PERIOD. NO SEVERE WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE REQUIRED. 13
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 1124 AM CDT THU AUG 5 2010 LAZ028-029-032-033-043>045-051730- RAPIDES LA-AVOYELLES LA-EVANGELINE LA-ST. LANDRY LA- UPPER ST. MARTIN LA-LAFAYETTE LA-ACADIA LA- 1124 AM CDT THU AUG 5 2010 ...SIGNIFICANT WEATHER ADVISORY FOR RAPIDES...AVOYELLES... EVANGELINE...ST. LANDRY...LAFAYETTE...ACADIA AND ST. MARTIN PARISHES UNTIL 1230 PM CDT... AT 1113 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A LINE OF STRONG THUNDERSTORMS...ALONG A LINE EXTENDING FROM 9 MILES NORTHEAST OF SIMMESPORT TO LAFAYETTE...MOVING WEST AT 25 MPH. THE BAND OF STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND... BIG BEND...SCOTT...GRAND COTEAU...SUNSET...CANKTON...LEBEAU AND OPELOUSAS. 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. JT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 1148 AM CDT THU AUG 5 2010 LAZ041-051-051745- CAMERON LA-CALCASIEU LA- 1148 AM CDT THU AUG 5 2010 ...SIGNIFICANT WEATHER ADVISORY FOR CAMERON AND CALCASIEU PARISHES UNTIL 1245 PM CDT... AT 1142 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A AN AREA OF 40 MPH WIND GUSTS FROM PREVIOUS THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES EAST OF LACASSINE NATIONAL WILDLIFE REFUGE TO CAMERON. THE AREA IS MOVING WEST AT 30 MPH. THE WIND GUSTS WILL AFFECT AREAS IN AND AROUND...LACASSINE NATIONAL WILDLIFE REFUGE...GIBBSTOWN...SWEET LAKE...HACKETTS CORNER...HEBERTS MARINA AND GRAND LAKE. THE PRIMARY THREAT IS 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. JT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 1219 PM CDT THU AUG 5 2010 LAZ028-029-031>033-042-043-051815- RAPIDES LA-AVOYELLES LA-EVANGELINE LA-ALLEN LA-ST. LANDRY LA- ACADIA LA-JEFFERSON DAVIS LA- 1219 PM CDT THU AUG 5 2010 ...SIGNIFICANT WEATHER ADVISORY FOR RAPIDES...AVOYELLES... EVANGELINE...ALLEN...ST. LANDRY...ACADIA AND JEFFERSON DAVIS PARISHES UNTIL 115 PM CDT... AT 1214 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A THUNDERSTORM WIND GUSTS...ITS LEADING EDGE EXTENDING ALONG A LINE FROM 9 MILES WEST OF ACME TO 7 MILES NORTH OF CROWLEY. THE LEADING EDGE IS MOVING WEST AT 15 MPH. THE WIND GUSTS TO NEAR 40 MPH WILL AFFECT AREAS IN AND AROUND ...EVERGREEN...SAVOY...BROUILLETTE...MAXIE...MARKSVILLE AND CHATAIGNIER. THESE WIND GUSTS COULD DOWN TREE LIMBS AND BLOW AROUND UNSECURED SMALL OBJECTS. SEEK SHELTER IN A SAFE HOME OR BUILDING UNTIL THESE STORMS HAVE PASSED. JT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
1220 PM CDT THU AUG 05 2010
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1215 PM TSTM WND GST 8 S LAFAYETTE 30.10N 92.03W
08/05/2010 E50 MPH LAFAYETTE LA TRAINED SPOTTER
SKYWARN SPOTTER REPORTED WIND GUST NEAR 50 MPH 8 MILES
SOUTH OF LAFAYETTE AIRPORT.
&&
DJONESSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 1226 PM CDT THU AUG 5 2010 LAZ044-045-051>054-051830- UPPER ST. MARTIN LA-CAMERON LA-LAFAYETTE LA-VERMILION LA-ST. MARY LA- IBERIA LA- 1226 PM CDT THU AUG 5 2010 ...SIGNIFICANT WEATHER ADVISORY FOR CAMERON...LAFAYETTE... VERMILION...ST. MARY...IBERIA AND ST. MARTIN PARISHES UNTIL 130 PM CDT... AT 1223 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A BAND OF STRONG THUNDERSTORMS FROM 8 MILES WEST OF PECAN ISLAND TO JEANERETTE. THIS BAND IS ABOUT STATIONARY. 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. JT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAKE CHARLES LA 1252 PM CDT THU AUG 5 2010 LAZ042>044-052-051845- LAFAYETTE LA-VERMILION LA-ACADIA LA-JEFFERSON DAVIS LA- 1252 PM CDT THU AUG 5 2010 ...SIGNIFICANT WEATHER ADVISORY FOR LAFAYETTE...VERMILION...ACADIA AND JEFFERSON DAVIS PARISHES UNTIL 145 PM CDT... AT 1246 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A BAND OF STRONG THUNDERSTORMS FROM 7 MILES NORTHWEST OF LAKE ARTHUR TO CROWLEY. THE BAND IS ABOUT STATIONARY. STRONG THUNDERSTORMS WILL AFFECT AREAS IN AND AROUND...ESTHERWOOD...MIDLAND...WELSH...MERMENTAU...RAYNE...EGAN...JE NNINGS...EVANGELINE AND ROANOKE. 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. JT
The Lake Charles radar (KLCH), 54 km away, was scanning. The volume nearest the first event began at 18:00 UTC.
2 thunderstorm wind, 1 flood. Local standard time, as filed.
Lake Charles American Press reported widespread street flooding throughout the city of Jennings due to heavy rainfall from afternoon thunderstorms.
Beauregard Parish Sheriff Office reported a tree was blown down along Highway 113 between Sugartown and Dry Creek.
Beauregard Parish Sheriff Office reported a tree was blown down on Joe Gray Road near Dry Creek.
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: 257865, 257867, 257868.