A large north to south band of convection, which developed along an outflow boundary emanating from dryline development much further to the west, slowly shifted east into northeast Texas and southeast Oklahoma around mid afternoon. A severe thunderstorm watch was issued around 5 pm for all of southwest Arkansas, southeast Oklahoma and portions of northeast Texas, north of interstate 20 as peak…
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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.
A large north to south band of convection, which developed along an outflow boundary emanating from dryline development much further to the west, slowly shifted east into northeast Texas and southeast Oklahoma around mid afternoon. A severe thunderstorm watch was issued around 5 pm for all of southwest Arkansas, southeast Oklahoma and portions of northeast Texas, north of interstate 20 as peak heating with afternoon highs around 90 coincided with convective intensification. A weak stationary front stretching from near Dallas to near Little Rock may have been a contributing focus. The storms mostly produced large hail and strong damaging wind gusts across the region.
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 May 14, 1:43 PM CST, 1 hour 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 243 PM CDT FRI MAY 14 2010 .DISCUSSION... WV IMAGERY SHOWS A TROF OVER AZ...WITH ASSOCIATED DISTURBANCES KICKING OUT OVER TX. MOSAIC RADAR SHOWS A LARGE AREA OF SHOWERS AND TSTMS JUST TO THE WEST OF THE REGION OVER CENTRAL TX...AND A FEW SHOWERS BEGINNING TO DEVELOP ACROSS THE NRN PORTIONS OF THE AREA. A VERY SLOW-MOVING BOUNDARY DRAPED ACROSS TX... AR...AND OK...FROM COMANCHE TX...TO IDABEL OK...TO JONESBORO AR HAS MADE SOME SEWD PROGRESS OVER THE LAST FEW HOURS. THIS BOUNDARY IS EXPECTED TO CONTINUE SLOWLY DRIFTING SWD...AS DISTURBANCES CONTINUE TO EJECT FROM THE MAIN TROF THIS EVENING THROUGH TONIGHT. SHOWERS AND TSTMS WILL BECOME MORE NUMEROUS BY THIS EVENING... MAINLY CONCENTRATED ALONG THE I-30 CORRIDOR. THE BOUNDARY WILL CONTINUE TO LINGER...PROVIDING A FOCUS FOR SHOWER AND TSTM DEVELOPMENT THROUGHOUT THE WEEKEND. AS FOR ANY SVR WX...CANNOT RULE OUT THE POSSIBILITY OF ONE OR TWO STORMS PRODUCING GUSTY WINDS AND/OR A FEW HAILSTONES...BUT NOT EXPECTING WIDESPREAD ORGANIZED SVR WX. THE MAIN DISTURBANCE IS FORECAST TO MOVE NE OUT OVER THE NRN GREAT PLAINS BY SUNDAY AFTN...WITH AN ASSOCIATED NEW COLD FRONT FINALLY PUSHING MOST OF THE CONVECTION OUT OF THE AREA BY LATE MONDAY. QPF FOR THE WEEKEND COULD REACH UP TO 2-2.5 INCHES BY THE TIME ITS ALL SAID AND DONE...BUT TOTALS NEAR ONE INCH WILL BE MORE COMMON. JUST AS ONE NUISANCE FRONT MOVES OUT...WE BEGIN TO SEE DISTURBANCES EJECTING OUT OF THE NEXT UPPER TROF DEVELOPING OVER THE WRN U.S...KEEPING CHANCES FOR SHOWERS IN THROUGH MONDAY AFTERNOON. THE OVERALL PATTERN FOR THE REMAINDER OF THE WORK WEEK APPEARS FAVORABLE FOR AT LEAST AFTERNOON SHOWERS/TSTMS TO DEVELOP. HOWEVER...DUE TO DIFFERENCES AND UNCERTAINTIES IN THE LONG-RANGE MODEL SOLUTIONS...ONLY KEPT SILENT 10S IN FOR NOW. TEMPS THROUGHOUT THE PD LOOK TO BE NEAR TO SLIGHTLY ABOVE SEASONAL NORMS. && .AVIATION... SCT TO BKN CLOUDS AROUND 4 KFT FOR THE REMAINDER OF THE AFTERNOON. ONLY FLIGHT HAZARDS AT THIS TIME WERE THOSE ASSOCIATED WITH WIDELY SCATTERED SHOWERS AND TSTMS...MAINLY ACROSS EAST TEXAS INTO SOUTHEAST OKLAHOMA. THIS CONVECTION WILL INCREASE THIS EVENING AS A FRONTAL BOUNDARY MOVES INTO THE REGION FROM THE NORTHWEST. AREAS ALONG AND NORTH OF INTERSTATE 30 WILL EXPERIENCE NUMEROUS TSTMS TONIGHT...WITH COVERAGE SOUTH OF THIS AREA REMAINING SCATTERED. SURFACE WINDS WILL BE MAINLY FROM THE SOUTH TO SOUTHEAST WITH SPEEDS OF 8 TO 12 KNOTS DURING THE DAY AND LESS THAN 8 KNOTS INTO THE EVENING EXCEPT STRONG NEAR TSTMS. WINDS WILL SHIFT TO THE NORTH ACROSS PORTIONS OF NORTHEAST TEXAS AND SOUTHEAST OKLAHOMA...AND EVENTUALLY EAST TO NORTHEAST AS THE FRONT BECOMES STATIONARY. EXPECT CIGS TO LOWER AGAIN TONIGHT AFTER 06Z TO MVFR MOST AREAS... WITH SOME IFR FROM FOG AND CIGS IN LOCATIONS WHICH RECEIVE RAIN. /14/ && .PRELIMINARY POINT TEMPS/POPS... SHV 68 84 67 83 67 / 40 50 40 50 40 MLU 67 86 66 83 65 / 30 50 40 50 40 DEQ 65 81 63 80 61 / 80 50 40 50 40 TXK 66 83 65 81 64 / 70 50 40 50 40 ELD 66 84 65 80 64 / 50 50 40 50 40 TYR 67 83 67 84 67 / 50 50 30 50 40 GGG 67 83 67 84 66 / 40 50 30 50 40 LFK 69 84 68 85 68 / 30 50 30 50 40 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 12/14
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1145 AM CDT FRI MAY 14 2010 ARZ050-051-059>061-070>073-LAZ001>006-012>014-OKZ077-TXZ096-097- 108>112-124>126-136>138-150-151-151645- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN- UNION LA-BIENVILLE-JACKSON-OUACHITA-MCCURTAIN-RED RIVER-BOWIE- FRANKLIN-TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG- HARRISON-RUSK-PANOLA- 1145 AM CDT FRI MAY 14 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ARKANSAS...SOUTHWEST ARKANSAS...NORTH CENTRAL LOUISIANA... NORTHWEST LOUISIANA...SOUTHEAST OKLAHOMA AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... A NEAR STATIONARY FRONT WILL BEGIN TO SAG SOUTHWARD INTO THE FOUR STATE REGION TODAY AND TONIGHT...WHICH WILL BRING SHOWERS AND THUNDERSTORMS...ESPECIALLY FOR THIS EVENING AND OVERNIGHT. MOST OF THE SHOWERS AND THUNDERSTORMS WILL REMAIN ALONG AND NORTH OF THE INTERSTATE 20 CORRIDOR. STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WINDS AND SMALL HAIL...ALONG WITH LOCALLY HEAVY RAINFALL...WILL BE POSSIBLE WITH THIS ACTIVITY. HOWEVER...NO ORGANIZED SEVERE WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... A COLD FRONT WILL CONTINUE TO SLOWLY MOVE INTO THE FOUR STATE REGION FROM THE NORTHWEST THROUGH SATURDAY...ALLOWING FOR SHOWERS AND THUNDERSTORMS TO CONTINUE THROUGH THE WEEKEND. ANOTHER COLD FRONT WILL MOVE THROUGH THE ENTIRE FOUR STATE REGION ON SUNDAY AND INTO MONDAY...PROVIDING ADDITIONAL SHOWERS AND THUNDERSTORMS. THROUGH THE WEEKEND...STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WINDS AND HAIL...ALONG WITH LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. TOTAL RAINFALL AMOUNTS THROUGH THE WEEKEND MAY REACH UP TO 3 INCHES...ESPECIALLY FOR AREAS ALONG AND NORTH OF THE INTERSTATE 30 CORRIDOR. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD NOT BE NEEDED THROUGH TONIGHT. LAZ010-011-017>022-TXZ149-152-153-165>167-151645- DE SOTO-RED RIVER-SABINE LA-NATCHITOCHES-WINN-GRANT-CALDWELL- LA SALLE-CHEROKEE-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE- SABINE TX- 1145 AM CDT FRI MAY 14 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL LOUISIANA...NORTHWEST LOUISIANA...EAST TEXAS AND NORTHEAST TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... A NEAR STATIONARY FRONT WILL BEGIN TO SAG SOUTHWARD INTO THE FOUR STATE REGION TODAY AND TONIGHT...BRINGING ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS ALONG AND SOUTH OF INTERSTATE 20 DURING THIS TIME FRAME. HOWEVER...SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... A COLD FRONT WILL CONTINUE TO SLOWLY MOVE INTO THE FOUR STATE REGION FROM THE NORTHWEST THROUGH SATURDAY...ALLOWING FOR SHOWERS AND THUNDERSTORMS TO INCREASE THROUGH THE WEEKEND. ANOTHER COLD FRONT WILL MOVE THROUGH THE ENTIRE FOUR STATE REGION ON SUNDAY AND INTO MONDAY...PROVIDING ADDITIONAL SHOWERS AND THUNDERSTORMS. THROUGH THE WEEKEND...AN OCCASIONAL STRONG THUNDERSTORMS CAPABLE OF PRODUCING GUSTY WINDS AND HAIL...ALONG WITH LOCALLY HEAVY RAINFALL WILL BE POSSIBLE. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD NOT BE NEEDED THROUGH TONIGHT. 12
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 337 PM CDT FRI MAY 14 2010 ARZ050-051-059>061-070>072-LAZ001-002-010-OKZ077-TXZ096-097- 108>112-124>126-136>138-149>153-165-166-142200- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-CADDO-BOSSIER-DE SOTO-MCCURTAIN-RED RIVER-BOWIE-FRANKLIN- TITUS-CAMP-MORRIS-CASS-WOOD-UPSHUR-MARION-SMITH-GREGG-HARRISON- CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-ANGELINA-SAN AUGUSTINE- INCLUDING THE CITIES OF...DE QUEEN...NASHVILLE...ASHDOWN...HOPE... PRESCOTT...TEXARKANA...LEWISVILLE...MAGNOLIA...SHREVEPORT... BOSSIER CITY...MANSFIELD...IDABEL...CLARKSVILLE...MT VERNON... MT PLEASANT...PITTSBURG...DAINGERFIELD...ATLANTA...QUITMAN... GILMER...JEFFERSON...TYLER...LONGVIEW...MARSHALL...RUSK... HENDERSON...CARTHAGE...NACOGDOCHES...CENTER...LUFKIN... SAN AUGUSTINE 337 PM CDT FRI MAY 14 2010 ...SCATTERED THUNDERSTORMS FORMING ON OUTFLOW BOUNDARY IN NORTHEAST TEXAS... SCATTERED SHOWERS AND THUNDERSTORMS WERE FORMING THIS AFTERNOON ON AN OUTFLOW BOUNDARY FROM NEAR HUGO OKLAHOMA...TO NEAR CANTON TEXAS...SOUTHWEST TO NEAR GROESBECK TEXAS. THIS OUTFLOW BOUNDARY WAS MOVING EAST AT ABOUT 15 MPH AND WILL MOVE INTO NORTHEAST TEXAS...FAR SOUTHEAST OKLAHOMA...AND FAR SOUTHWEST ARKANSAS...DURING THE HEAT OF THE DAY. SCATTERED THUNDERSTORMS NEAR THIS BOUNDARY MAY PRODUCE HAIL...GUSTY WINDS...AND HEAVY RAINFALL...AS THE BOUNDARY MOVES EAST LATE THIS AFTERNOON AND EARLY IN THE EVENING. STAY TUNED FOR FURTHER WEATHER UPDATES. 03
The Western Arkansas radar (KSRX), 158 km away, was scanning. The volume nearest the first event began at 20:53 UTC.
3 hail, 2 thunderstorm wind. Local standard time, as filed.
Local emergency manager estimated wind gusts between 60 and 65 mph in Valliant, Oklahoma.
Trees were downed on the north side of the Little River near the Mountain Fork River.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2010Every state in 2010This day in weather historyWarnings in Oklahoma, May 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: 220202, 220203, 220206, 220207, 220222.