A very tropical airmass, weak surface boundaries and disturbances aloft resulted in very sufficient rain producers across Southwest Arkansas during the afternoon of July 9th. Some flash flooding was reported in Columbia County, Arkansas.
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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 very tropical airmass, weak surface boundaries and disturbances aloft resulted in very sufficient rain producers across Southwest Arkansas during the afternoon of July 9th. Some flash flooding was reported in Columbia County, Arkansas.
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 9, 2:34 PM CST, 1 hour 42 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 334 PM CDT MON JUL 9 2012 .DISCUSSION... UNSETTLED PATTERN IS EXPECTED TO CONTINUE FOR MUCH OF THE NEXT WEEK. BIGGEST CHANGES WITH THIS PACKAGE WERE AN ATTEMPT TO FINE TUNE POPS. UPPER LEVEL WAVE OVER SE AR/NW MS PROVIDED MORE THAN ENOUGH SUPPORT TO IGNITE MORE CONVECTION IN THE RICH TROPICAL AIRMASS THAT REMAINS IN PLACE. PW VALUES OF WELL OVER 2 INCHES COMBINED WITH WEAK STEERING FLOW ALOFT HAVE RESULTED IN QUITE EFFICIENT RAIN PRODUCERS AND SOME LOCALLY HEAVY RAINFALL AMOUNTS. THERE REMAINS A THREAT FOR ISOLATED WIND DAMAGE DUE TO OUTFLOW WINDS AS TSTMS COLLAPSE. SIMILAR SITUATION WILL LIKELY BE IN PLACE FOR TUESDAY...WITH THE BEST CHANCES FOR RAIN SOUTH AND EAST OF INTERSTATE 30. FCST BECOMES A BIT MORE UNCERTAIN BY LATE TUESDAY AND INTO WEDNESDAY AS A WEAK COLD FRONT MOVES SE INTO THE CWA. THE FRONT SHOULD HELP TO SERVE AS ANOTHER FOCUS MECHANISM FOR SHWRS AND TSTMS. RAIN CHANCES MAY BE A BIT LOWER IN SE OK/ADJACENT AREAS OF SW AR/NE TX AS SOMEWHAT DRIER AIR WILL BE IN PLACE BEHIND THE FRONT. THE FRONT IS EXPECTED TO BECOME STATIONARY SE OF I-30 AND A SERIES OF WEAK UPPER DISTURBANCES SHOULD TRIGGER CONVECTION ACROSS THE AREA JUST ABOUT EVERY DAY THROUGH FRIDAY. RAIN CHANCES SHOULD BE LOWER DURING THE OVERNIGHT HOURS DUE TO THE LOSS OF DIURNAL HEATING. MODEL GUIDANCE SUGGESTS THE CWA WILL REMAIN IN A BIT OF DEAD SPOT IN THE UPPER FLOW WITH A LARGE RIDGE OVER THE WRN CONUS AND A LARGE TROUGH OVER THE NE CONUS AND INTO CANADA. WEAK UPPER WAVES AND SEA BREEZE ACTIVITY WILL PROVIDE CONTINUED RAIN CHANCES THROUGH MUCH OF THE EXTENDED PERIODS...PRIMARILY ACROSS THE SE HALF OF THE CWA. TEMPERATURE FCST WILL BE HIGHLY DEPENDENT ON CLOUD COVER AND THE PRECIP. GIVEN THE TIME OF YEAR...TEMPS CAN WARM RATHER QUICKLY EVEN WITH ONLY A 2 TO 3 HOUR BREAK IN THE CLOUDS. ON THE FLIP SIDE...RAINFALL CAN PROVIDE A DRAMATIC COOLING EFFECT. ON THE WHOLE...OVERNIGHT LOWS SHOULD PERSIST IN THE LOW 70S AND KEPT HIGHS SLIGHTLY BELOW GUIDANCE/CLIMO DUE TO THE CLOUDS AND RAIN. /09/ && .AVIATION... SCATTERED TSRA ACTIVITY BEING OBSERVED ON RADAR THIS AFTERNOON. THIS ACTIVITY WILL PERSIST INTO THE 00Z ISSUANCE...BUT SHOULD BEGIN TO DECREASE SHORTLY AFTER SUNSET. TSRA ACTIVITY WILL CAUSE FLIGHT CATEGORIES TO TEMPORARILY GO DOWN TO IFR/LIFR CONDITIONS AT AREA TERMINALS WHERE THEY OCCUR. WE WILL CONTINUE TO JUDICIOUSLY USE VCTS AND TEMPO GROUPS FOR ANY STORMS THAT APPROACH TERMINAL AIRSPACE ACROSS THE AREA. THERE WILL BE VERY LITTLE MOVEMENT WITH THESE STORMS...SO THEY MAY LINGER AT TERMINALS FOR A WHILE. LIGHT AND VARIABLE WINDS WILL CONTINUE ACROSS THE AREA THROUGH THE PERIOD...EXCEPT STRONG AND GUSTY NEAR ANY TSRA ACTIVITY. VSBY CONCERNS WILL REMAIN PRIMARILY TIED TO THE TSRA ACTIVITY. /11/ && .PRELIMINARY POINT TEMPS/POPS... SHV 73 89 73 87 71 / 50 60 50 50 40 MLU 72 89 72 88 72 / 50 60 50 60 50 DEQ 71 87 70 89 70 / 50 50 40 30 20 TXK 72 88 71 88 70 / 50 60 40 40 30 ELD 71 87 71 86 70 / 50 60 50 60 40 TYR 73 88 72 88 72 / 50 60 50 50 30 GGG 73 88 73 88 71 / 50 60 50 50 40 LFK 72 88 72 88 73 / 50 60 50 50 40 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 09/11
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1153 AM CDT MON JUL 9 2012 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-101100- 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- 1153 AM CDT MON JUL 9 2012 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... SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE REGION TODAY AND TONIGHT. STORMS MAY BE SLOW MOVING...WHICH COULD LEAD TO LOCALLY HEAVY RAINFALL. IN ADDITION...STRONG GUSTY WINDS WILL BE POSSIBLE IN A FEW OF THE STRONGER STORMS...WHICH COULD RESULT IN TREE AND POWER LINE DAMAGE. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... A WEAK COLD FRONT WILL MOVE INTO THE FOUR STATE REGION TUESDAY AND BECOME STATIONARY. THIS FRONT WILL SERVE AS A FOCUS FOR ADDITIONAL THUNDERSTORM DEVELOPMENT OVER THE NEXT SEVERAL DAYS. A FEW OF THE STRONGER STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL AND STRONG WIND GUSTS. .SPOTTER INFORMATION STATEMENT... DUE TO THE ISOLATED NATURE OF ANY POSSIBLE DAMAGING WIND GUSTS...STORM SPOTTER ACTIVATION IS NOT EXPECTED THIS AFTERNOON OR TONIGHT. 09
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
417 PM CDT MON JUL 9 2012
TXZ149-092145-
CHEROKEE-
417 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 445 PM CDT...FOR THE FOLLOWING
COUNTY...
IN NORTHEAST TEXAS...
CHEROKEE...
INCLUDING THE FOLLOWING LOCATIONS...
JACKSONVILLE...MAYDELLE...PONTA AND RUSK...
AT 415 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR JACKSONVILLE...MOVING SOUTH AT 5
MPH.
WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
09SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
419 PM CDT MON JUL 9 2012
OKZ077-TXZ096-092145-
MCCURTAIN-RED RIVER-
419 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 445 PM CDT...FOR THE FOLLOWING
COUNTIES...
IN SOUTHEAST OKLAHOMA...
MCCURTAIN...
IN NORTHEAST TEXAS...
RED RIVER...
INCLUDING THE FOLLOWING LOCATIONS...
IDABEL...
AT 415 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 11 MILES NORTHWEST OF IDABEL...OR 14
MILES WEST OF BROKEN BOW...MOVING SOUTHEAST AT 10 MPH.
WINDS 40 TO 50 MPH ARE EXPECTED WITH THIS STORM.
09SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
421 PM CDT MON JUL 9 2012
ARZ059>061-070>072-092145-
COLUMBIA-HEMPSTEAD-LAFAYETTE-LITTLE RIVER-MILLER-NEVADA-
421 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 445 PM CDT...FOR THE FOLLOWING
COUNTIES...
IN SOUTHWEST ARKANSAS...
COLUMBIA...HEMPSTEAD...LAFAYETTE...LITTLE RIVER...MILLER AND
NEVADA...
INCLUDING THE FOLLOWING LOCATIONS...
BUCKNER...FOUKE...FULTON...GARLAND...GENOA...LEWISVILLE...
MANDEVILLE...STAMPS...TEXARKANA AND WALDO...
AT 420 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FULTON TO
6 MILES NORTHWEST OF LEWISVILLE TO 6 MILES SOUTHWEST OF
WILLISVILLE...OR ALONG A LINE EXTENDING FROM 14 MILES SOUTHWEST OF
HOPE TO 6 MILES NORTHWEST OF LEWISVILLE TO 7 MILES NORTHWEST OF
WALDO...MOVING WEST AT 10 MPH.
WINDS AROUND 40 MPH ARE EXPECTED WITH THESE STORMS.
09SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
444 PM CDT MON JUL 9 2012
LAZ001-010-TXZ151-092215-
CADDO-DE SOTO-PANOLA-
444 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 515 PM CDT...FOR THE FOLLOWING
COUNTIES AND PARISHES...
IN NORTHEAST TEXAS...
PANOLA...
IN NORTHWEST LOUISIANA...
DE SOTO AND CADDO...
INCLUDING THE FOLLOWING LOCATIONS...
BETHANY...KEATCHIE...SPRING RIDGE...FRONT AND MIDYETT...
AT 440 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 9 MILES EAST OF DEBERRY...OR 17 MILES
SOUTHWEST OF SHREVEPORT...MOVING SOUTH AT 5 MPH.
WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
09SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
456 PM CDT MON JUL 9 2012
TXZ096-108>110-124-125-092300-
CAMP-FRANKLIN-RED RIVER-TITUS-UPSHUR-WOOD-
456 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 600 PM CDT...FOR THE FOLLOWING
COUNTIES...
IN NORTHEAST TEXAS...
FRANKLIN...RED RIVER...TITUS...UPSHUR...WOOD AND CAMP...
INCLUDING THE FOLLOWING LOCATIONS...
BOGATA...HAGANSPORT...LEESBURG...MOUNT PLEASANT...MOUNT
VERNON...NEWSOME...PITTSBURG...PLEASANT GROVE...PURLEY...
QUITMAN...ROSEWOOD...SCROGGINS...WILKERSON AND WINNSBORO...
AT 455 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM NEAR NEWSOME...OR NEAR LEESBURG. A
SECOND STRONG THUNDERSTORM WAS LOCATED NEAR TALCO. BOTH STORMS ARE
MOVING SOUTHWEST AT 15 MPH.
WINDS 30 TO 40 MPH ARE EXPECTED WITH THESE STORMS.
09SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
513 PM CDT MON JUL 9 2012
OKZ077-TXZ096-097-092300-
BOWIE-MCCURTAIN-RED RIVER-
513 PM CDT MON JUL 9 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY...EFFECTIVE UNTIL 600 PM CDT...FOR THE FOLLOWING
COUNTIES...
IN SOUTHEAST OKLAHOMA...
MCCURTAIN...
IN NORTHEAST TEXAS...
RED RIVER AND BOWIE...
INCLUDING THE FOLLOWING LOCATIONS...
BAGWELL...BOGATA...BOXELDER...CLARKSVILLE...DE KALB AND
MANCHESTER...
AT 509 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
DETECTING A STRONG THUNDERSTORM 8 MILES SOUTH OF IDABEL...OR 17 MILES
SOUTH OF BROKEN BOW...MOVING SOUTHWEST AT 20 MPH.
WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM.
09The Shreveport radar (KSHV), 109 km away, was scanning. The volume nearest the first event began at 22:14 UTC.
1 flash flood. Local standard time, as filed.
Some cars were flooded and water was beginning to enter a few businesses in downtown Magnolia, Arkansas.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arkansas in 2012Every state in 2012This day in weather historyWarnings in Arkansas, July 2012
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: 386988.