Isolated strong to severe thunderstorms developed across McCurtain County in southeast Oklahoma during the late evening hours of August 17th. The remnants of Tropical Storm Erin allowed for plentiful moisture across the region.
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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.
Isolated strong to severe thunderstorms developed across McCurtain County in southeast Oklahoma during the late evening hours of August 17th. The remnants of Tropical Storm Erin allowed for plentiful moisture across the region. Convection developed along an residual outflow boundary and strong damaging wind gusts were the result.
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 Aug 17, 2:37 PM CST, 5 hours 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SHREVEPORT LA 337 PM CDT FRI AUG 17 2007 .DISCUSSION... SCATTERED CONVECTION COVERS PORTIONS OF E TX/WCNTRL LA THIS AFTERNOON...IN VC OF A WEAK INVERTED SFC-700MB TROUGH EXTENDING FROM THE SFC LOW /REMNANTS OF ERIN/ CENTERED BETWEEN FST AND SJT...WITH ATTENDANT TROUGH STRETCHING E ACROSS NCNTRL/NE TX INTO NCNTRL LA. THERE/S QUITE A RANGE IN PW/S ON BOTH SIDES OF THE TROUGH...WITH VALUES BETWEEN 1.6-1.75 OVER SE OK/SW AR...TO IN EXCESS OF 2.25 OVER NE TX/NCNTRL LA. HOWEVER...HEAVY RAIN THREAT REMAINS LIMITED AND BRIEF GIVEN THE DISCONTINUITY OF THE STORMS. SHORT TERM FORECAST WILL BE BASED MAINLY ON THE GFS...WHICH INITIALIZED BETTER WITH ONGOING CONVECTION THAN THE OTHER SHORT TERM PROGS. BELIEVE THAT CONVECTION WILL LINGER INTO THE EVENING IN VC OF THE TROUGH...BEFORE DIMINISHING WITH THE LOSS OF HEATING. PROGS DO AGREE THAT REMNANTS OF ERIN WILL BECOME SHEARED NE INTO NW TX/OK LATE TONIGHT/SATURDAY...ALTHOUGH THERE REMAINS SOME DEBATE EXACTLY WHERE/HOW STRONG LOW LEVEL CIRCULATION WILL BE BY SATURDAY MORNING. BUT BROAD SSE FLOW SHOULD REMAIN...THUS SPILLING RICH TROPICAL AIR N INTO SE OK/SW AR. HAVE CONCENTRATED HIGHEST POPS OVER E TX...TAPERING POPS FARTHER E INTO SCNTRL AR/NCNTRL LA. HOWEVER...DEEP LAYER SHEAR WILL REMAIN WEAK...THUS DESPITE HIGH PW/S...STORMS WILL REMAIN MULTICELLULAR...AND HEAVY RAIN SHOULD NOT BE A WIDESPREAD THREAT. HAVE KEPT TEMPS NEAR/SLIGHTLY BELOW GUIDANCE...GIVEN INCREASED CLOUD COVER/RAINFALL. 500MB RIDGE OVER THE LOWER MS VALLEY WILL SHIFT E INTO THE SE STATES SATURDAY...ALLOWING BROAD UPPER LOW BETWEEN FL AND THE BAHAMAS TO RETROGRADE W ACROSS THE FL PENINSULA OVERNIGHT...AND INTO THE E GULF BY SATURDAY EVENING. FOUR STATE REGION WILL REMAIN OVER THE W PERIPHERY OF THE RIDGE...THUS AFTERNOON HEATING WILL ALLOW FOR ISOLATED TO WIDELY SCATTERED CONVECTION TO DEVELOP ONCE AGAIN SUNDAY. BUT WILL HAVE TO AWAIT THE ARRIVAL OF THE RETROGRADING LOW...WHICH PROGS ARE IN REASONABLE AGREEMENT WITH IT REACHING THE SE TX COAST SOMETIME MONDAY AFTERNOON...FOR MORE SCATTERED/POSSIBLY NUMEROUS CONVECTION TO DEVELOP/SPREAD INLAND ACROSS MUCH OF THE AREA AS EARLY AS MONDAY AFTERNOON. STILL SOME DISCREPANCIES OF THE EXACT TRACK OF THE LOW...WITH THE 12Z GFS NOW SHIFTING THE LOW A TAD FARTHER E INTO E TX...WHILE THE ECMWF REMAINS MUCH FARTHER SW ALONG THE MIDDLE TX COASTAL PLAINS. FOR NOW...WILL CONCENTRATE BETTER CHANCE POPS OVER E TX...UNTIL BETTER CONSENSUS IS REACHED. HAVE ALSO KEPT TEMPS NEAR CLIMO AS WELL THROUGH THE LONG TERM...ALTHOUGH MID TO LATE WEEK FORECAST PERIOD WILL BE ULTIMATELY DETERMINED BY THE TRACK OF MAJOR HURRICANE DEAN...WHICH IS PROGGED TO ENTER THE S GULF BY TUESDAY AFTERNOON/WEDNESDAY MORNING. PRELIMS ARE NEXT... 15 && .AVIATION... ANOTHER ROUND OF TROPICAL TYPE CONVECTION THROUGH EVENING AS REMNANTS OF ERIN HAVE TAPPED GULF MOISTURE UPON SOUTHERLY WINDS. CONVECTION WILL STAY GENERALLY WEST OF A MLU TO DEQ LINE....MOSTLY MVFR CONDITIONS ASSOCIATED WITH CONVECTION. CONVECTION WILL BE NEAR SHV...GGG...TYR...LFK THROUGH ROUGHLY 00Z. OTHERWISE CONDITIONS WILL BE VFR THROUGH 06Z. AREAS OF MORNING LOW CLOUDS AND MVFR CONDITIONS WILL RETURN AFTER 06Z. /17/ && .PRELIMINARY POINT TEMPS/POPS... SHV 75 93 75 95 / 30 40 20 20 MLU 74 95 74 95 / 20 30 20 20 DEQ 73 92 71 95 / 20 50 20 20 TXK 75 93 73 95 / 20 40 20 20 ELD 73 94 73 95 / 10 30 20 20 TYR 75 88 75 93 / 40 50 20 20 GGG 74 90 74 94 / 40 50 20 20 LFK 74 91 74 93 / 40 50 20 20 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 15/17
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 1200 PM CDT FRI AUG 17 2007 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096- 097-108>112-124>126-136>138-149>153-165>167-181100- ANGELINA-BIENVILLE-BOSSIER-BOWIE-CADDO-CALDWELL-CAMP-CASS-CHEROKEE- CLAIBORNE-COLUMBIA-DE SOTO-FRANKLIN-GRANT-GREGG-HARRISON-HEMPSTEAD- HOWARD-JACKSON-LA SALLE-LAFAYETTE-LINCOLN-LITTLE RIVER-MARION- MCCURTAIN-MILLER-MORRIS-NACOGDOCHES-NATCHITOCHES-NEVADA-OUACHITA- PANOLA-RED RIVER LA-RED RIVER TX-RUSK-SABINE LA-SABINE TX- SAN AUGUSTINE-SEVIER-SHELBY-SMITH-TITUS-UNION AR-UNION LA-UPSHUR- WEBSTER-WINN-WOOD- 1200 PM CDT FRI AUG 17 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST OKLAHOMA...NORTHEAST TEXAS...SOUTHWEST ARKANSAS...NORTHWEST AND NORTH CENTRAL LOUISIANA. .DAY ONE...THIS AFTERNOON AND TONIGHT... SCATTERED SHOWERS AND THUNDERSTORMS ASSOCIATED WITH THE OUTER PERIPHERY OF THE REMNANTS OF TROPICAL STORM ERIN...ARE EXPECTED ACROSS MAINLY NORTHEAST TEXAS...NORTHWEST AND NORTHCENTRAL LOUISIANA THIS AFTERNOON. WHILE THESE STORMS ARE NOT EXPECTED TO BECOME SEVERE...BRIEF HEAVY RAINFALL WILL BE POSSIBLE. THESE SHOWERS AND THUNDERSTORMS WILL BEGIN TO DIMINISH LATER THIS EVENING WITH THE LOSS OF DAYTIME HEATING. FARTHER NORTH ACROSS SOUTHEAST OKLAHOMA AND SOUTHWEST ARKANSAS...TEMPERATURES ARE EXPECTED TO RISE INTO THE MID AND UPPER 90S THIS AFTERNOON...WHICH WHEN COMBINED WITH THE RELATIVE HUMIDITY...WILL PRODUCE HEAT INDICES OF 100 TO 105 DEGREES. THOSE THAT MUST BE OUTSIDE ARE REMINDED TO WEAR LIGHT COLORED...LOOSE FITTING CLOTHING...AND BE SURE TO DRINK PLENTY OF NON-ALCOHOLIC FLUIDS. IF POSSIBLE...STAY IN AN AIR CONDITIONED ROOM AND STAY OUT OF THE SUN. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS EAST TEXAS...SOUTHEAST OKLAHOMA...ADJACENT SOUTHWEST ARKANSAS...AND WESTERN LOUISIANA SATURDAY...AS ADDITIONAL TROPICAL AIR STREAMS NORTH FROM THE GULF OF MEXICO...AND INTERACTS WITH DAYTIME HEATING. BRIEF HEAVY RAINFALL WILL BE POSSIBLE...ALTHOUGH SEVERE WEATHER IS NOT EXPECTED AT THIS TIME. ADDITIONAL SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE FOUR STATE REGION THROUGHOUT NEXT WEEK...AS AN UPPER LEVEL LOW PRESSURE AREA LIFTS NORTHWEST TOWARDS THE TEXAS COAST. HOWEVER...VERY WARM AND HUMID CONDITIONS WILL PERSIST THROUGHOUT MUCH OF THE PERIOD...RESULTING IN AFTERNOON HEAT INDICES RANGING FROM 100 TO 105 DEGREES. .SPOTTER INFORMATION STATEMENT... STORM SPOTTER...HAM RADIO OPERATOR...AND EMERGENCY MANAGEMENT PERSONNEL ACTIVATION...IS NOT EXPECTED THIS AFTERNOON OR TONIGHT. 15
The Western Arkansas radar (KSRX), 154 km away, was scanning. The volume nearest the first event began at 01:59 UTC.
1 thunderstorm wind. Local standard time, as filed.
A tree and some power lines were downed along the JC James through way.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2007Every state in 2007This day in weather historyWarnings in Oklahoma, August 2007
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: 56136.