Early morning thunderstorms across southwest Arkansas and northeast Texas produced an outflow boundary that afternoon convection developed on across northwest Louisiana. This activity developed in a very unstable and moist air mass.
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 SHV wrote it up.
Early morning thunderstorms across southwest Arkansas and northeast Texas produced an outflow boundary that afternoon convection developed on across northwest Louisiana. This activity developed in a very unstable and moist air mass. These storms were prolific rainfall producers with a few reports of flash flooding reported in northwest Louisiana.
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 Shreveport, LA wrote its last area forecast discussion before the first event at Jul 17, 9:43 AM CST, 2 hours 17 minutes earlier.
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</html>HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1133 AM CDT SAT JUL 17 2010 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-181200- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN- UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA- NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-MCCURTAIN-BOWIE- FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG- HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA- SAN AUGUSTINE-SABINE TX- 1133 AM CDT SAT JUL 17 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... THE UPPER LEVEL HIGH PRESSURE AREA THAT HAD SUPPRESSED CONVECTION OVER OUR AREA IN RECENT DAYS...MOVED WEST OF THE FOUR STATE AREA LAST NIGHT...AND THIS WILL ALLOW SCATTERED THUNDERSTORMS TO OCCUR OVER NORTHWEST AND NORTH CENTRAL LOUISIANA...AND SOUTHWEST ARKANSAS THROUGH THE AFTERNOON HOURS TODAY. OUTFLOW BOUNDARIES OVER FAR NORTHWEST LOUISIANA AND OVER WEST LOUISIANA AND EAST TEXAS...WILL HELP TO FOCUS ADDITIONAL THUNDERSTORM DEVELOPMENT OVER NORTHWEST LOUSIANA AND EAST TEXAS IN THE AFTERNOON HOURS. THE MAIN THREATS FROM THESE STORMS WILL BE STRONG...GUSTY...WINDS AND ISOLATED POCKETS OF HEAVY RAINFALL DURING THE AFTERNOON. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... ISOLATED TO SCATTERED AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS WILL PERSIST THROUGH EARLY NEXT WEEK. THE MAIN THREAT FROM THESE STORMS WILL BE BRIEF HEAVY RAINFALL. THERE ALSO MAY BE DAMAGING WIND GUSTS IN ISOLATED LOCATIONS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED. 03
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1130 AM CDT SAT JUL 17 2010
LAZ001-002-171730-
BOSSIER-CADDO-
1130 AM CDT SAT JUL 17 2010
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 1230 PM CDT...FOR THE FOLLOWING
PARISHES...
IN NORTHWEST LOUISIANA...
CADDO AND BOSSIER...
INCLUDING THE FOLLOWING LOCATIONS...
BELCHER...BENTON...BLANCHARD...BOSSIER CITY...GILLIAM...
GREENWOOD...HAUGHTON...MOORINGSPORT...OIL CITY...SHREVEPORT AND
VIVIAN...
AT 1125 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR GILLIAM...OR 24 MILES NORTHWEST
OF BOSSIER CITY...MOVING SOUTH AT 25 MPH.
WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
14SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1227 PM CDT SAT JUL 17 2010
LAZ001-002-010-171815-
BOSSIER-CADDO-DE SOTO-
1227 PM CDT SAT JUL 17 2010
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 115 PM CDT...FOR THE FOLLOWING
PARISHES...
IN NORTHWEST LOUISIANA...
CADDO...BOSSIER AND DE SOTO...
INCLUDING THE FOLLOWING LOCATIONS...
BOSSIER CITY...SHREVEPORT AND STONEWALL...
AT 1222 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR SHREVEPORT...MOVING SOUTH AT 10
MPH.
SMALL HAIL...AND WINDS AROUND 40 MPH ARE EXPECTED WITH THIS STORM.
BRIEF HEAVY RAINFALL WILL ALSO OCCUR WITH THIS THUNDERSTORM.
03The Shreveport radar (KSHV), 10 km away, was scanning. The volume nearest the first event began at 18:02 UTC.
2 flash flood. Local standard time, as filed.
A woman was trapped in her car on Hwy. 3036 in northern Shreveport when water quickly rose and covered most of her vehicle. The woman had to be rescued by boat.
Excessive heavy rainfall resulted in high water and a few road closures. These roads included Benton Road at Beckett Street, Benton at East Texas, Benton at Viking Drive, Hamilton Road at East Texas, Hamilton Road at Barksdale, Old Minden Road at Preston Blvd. and Shed Road. A woman had to be rescued from her vehicle at the corner of Benton Road and Beckett Street.
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, July 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 2026-10-01. Each event’s entry at NCEI: 233708, 233709.