Numerous showers and thunderstorms containing heavy rainfall redeveloped during the early morning hours on May 9th over much of McCurtain County Oklahoma, over areas that had already received heavy rainfall during the evening hours of May 8th. Grounds remained saturated from the earlier rains, and additional flash flooding redeveloped over the southern portions of the county.
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.
Numerous showers and thunderstorms containing heavy rainfall redeveloped during the early morning hours on May 9th over much of McCurtain County Oklahoma, over areas that had already received heavy rainfall during the evening hours of May 8th. Grounds remained saturated from the earlier rains, and additional flash flooding redeveloped over the southern portions of the county.
Additional scattered showers and thunderstorms developed during the mid and late afternoon hours on May 9th across Southeast Oklahoma and adjacent sections of Southwest Arkansas, producing another round of heavy rainfall over southern McCurtain County. This resulted in additional flash flooding near Idabel.
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 9, 12:36 AM CST, 34 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE SHREVEPORT LA 136 AM CDT SAT MAY 9 2015 .DISCUSSION... HAVE SENT A QUICK UPDATE FOR THE CANCELLATION OF TORNADO WATCH 146. INSTABILITY HAS QUICKLY DECREASED OVER THE LAST COUPLE OF HOURS BUT THE THREAT FOR HEAVY RAIN AND FLOODING WILL CONTINUE NORTH OF I-30 IN SE OK/SW AR/NE TX. HAVE INCREASED QPF AMOUNTS THROUGH THE REMAINDER OF THE NIGHT AND REMOVED SEVERE WORDING BUT ADDED A MENTION OF LOCALLY HEAVY RAINFALL IN THE ZFP. UPDATED TEXT PRODUCTS HAVE BEEN SENT. /09/ && .PREV DISCUSSION... /ISSUED 1126 PM CDT FRI MAY 8 2015/ AVIATION... CONVECTION BEGINNING TO LIFT NORTH OF THE KTXK AND KELD TERMINAL SITES...LEAVING VFR CONDITIONS FOR THE MOST PART...ASIDE FROM SOME TEMPO MVFR CIGS NEAR KLFK...IN RETURN COASTAL FLOW. MCS OF STG TO SVR TSTMS MOVG EAST ACROSS OK...WITH SCT TSTMS EXTENDING SWD INTO NORTH TX. NORTHERN CWA...INCLUDING KTXK AND KELD...MAY SEE PREVAILING TSTMS BEGINNING AROUND 09/09Z WHEN LEADING EDGE ARRIVES NEAR KTXK TERMINAL. KEEPING I-20 CORRIDOR SCATTERED...WITH VCTS AND TEMPO GROUPS FOR TSTMS. KLFK WILL LIKELY SEE MORE LIMITED CONVECTION THRU PERIOD. S-SE WINDS GRADUALLY INCREASE DURG DAY...BECMG 10 TO 15 KTS BY AROUND 09/21Z AS GRADIENT TIGHTENS INVOK UPPER TROUGH APPROACHING LATER IN WKND. /VII/. PREV DISCUSSION... /ISSUED 809 PM CDT FRI MAY 8 2015/ DISCUSSION... HAVE UPDATED TO INCLUDE TORNADO WARNING EXTENSION UNTIL 3 AM...WHICH CAPTURED EXTREME SE OK AND 3 NW COUNTIES IN EXTREME NE TX. BOWING LINE OF STORMS HEADED EAST INTO RED RIVER VALLEY...WILL LIKELY BE MORE WIND THAN TORNADO THREAT BY LATER IN EVE AS STORMS GRADUALLY WEAKEN. ADDED HEAVY RAIN TO GRIDS FOR NW HALF OF CWA AS WELL. STORMS ARE VERY EFFICIENT RAINMAKERS AND GROUNDS OVER NE TX AND SE OK SATURATED FROM DOWNPOURS EARLY TODAY. OVERALL...HAVE INCREASED POPS TO 70 PERCENT NW TO 40 PERCENT SE CWA./VII/. PREV DISCUSSION... /ISSUED 250 PM CDT FRI MAY 8 2015/ DISCUSSION... SW FLOW ALOFT THAT HAS BEEN CHARACTERISTIC OF THIS SPRING SEASON WILL CONTINUE TO DOMINATE OUR REGION'S WEATHER PATTERN THROUGHOUT THE FCST PD. FOR THE SHORT TERM...ANOTHER ROUND OF STRONG TSTMS WILL BE POSSIBLE THIS AFTERNOON/TONIGHT...AND WILL LIKELY BE DRAWING TO AN END/MOVING E OF THE REGION BY SATURDAY MORNING. DAYTIME HEATING WILL HELP WITH AIRMASS RECOVERY JUST IN TIME FOR ANOTHER ROUND OF TSTMS BY SATURDAY AFTERNOON/NIGHT. THEN DURING LATE SUNDAY/EARLY MONDAY...A COLD FRONT WILL APPROACH THE REGION BRINGING STRONG TO SEVERE TSTMS TO THE REGION YET AGAIN. EACH ROUND OF CONVECTION WILL HAVE SOME POTENTIAL TO BECOME SEVERE GIVEN THE DIURNAL INSTABILITY AND MARGINAL WIND SHEAR PRESENT. HOWEVER...SUNDAY EVENING/MONDAY MORNING WILL HAVE THE GREATEST POTENTIAL FOR US TO SEE SEVERE STORMS...AS THE COLD FRONT WILL HELP TO PROVIDE A FOCUS FOR ORGANIZED STORMS. THE FRONT IS FCST TO SLOW AND BECOME STALLED ACROSS OUR REGION AS WE MOVE INTO TUESDAY. MEANWHILE...THE UPPER LEVEL FLOW PATTERN WILL REMAIN SWLY...WHICH WILL SPELL CONTINUED ROUNDS OF CONVECTION ACROSS OUR REGION THROUGH THE REMAINDER OF THE FCST PD. OUR RUN OF GENERALLY NEAR-NORMAL TEMPS WILL HALT WITH THE PASSAGE OF THE FRONT TUESDAY. RAIN AND A SLIGHTLY COOLER AIRMASS WILL KEEP US IN THE MID 70S FOR MUCH OF THE REMAINDER OF THE WORK WEEK. IN ADDITION TO THE POTENTIAL FOR SCATTERED SEVERE STORMS ESSENTIALLY THROUGHOUT THE PD...THE POTENTIAL FOR HEAVY RAINFALL AND FLASH FLOODING WILL CONTINUE TO INCREASE EACH DAY. WPC QPF FORECASTS FOR THE NEXT SEVEN DAYS PAINT A BLEAK PICTURE... PARTICULARLY FOR E TX/SE OK...WITH SOME THREE TO SIX INCHES POSSIBLE. OF COURSE... THIS DOES NOT INCLUDE THOSE DREADED ISOLD HIGHER AMOUNTS. WITH THIS IN MIND...WE WILL LIKELY NEED A FLASH FLOOD WATCH FOR SOME OR ALL OF THE REGION WITHIN THE NEXT DAY OR TWO...IF NOT SOONER. HOWEVER...PINPOINTING WHERE THAT SHOULD BE IS THE MORE DIFFICULT QUESTION. HAVE DECIDED TO HOLD OFF FOR NOW AND ALLOW SUBSEQUENT SHIFTS TO HAVE A BETTER LOOK...AS THE LOCATION... COVERAGE...AND INTENSITY OF TONIGHT'S CONVECTION WILL HELP TO BETTER DETERMINE THIS FACTOR. /12/ && .PRELIMINARY POINT TEMPS/POPS... SHV 71 84 70 82 / 30 60 70 60 MLU 69 87 69 83 / 20 30 50 60 DEQ 69 80 64 79 / 60 70 70 40 TXK 69 82 68 80 / 50 70 70 50 ELD 69 83 69 80 / 30 50 70 60 TYR 71 82 68 80 / 40 70 70 60 GGG 72 84 69 81 / 40 60 70 60 LFK 74 86 71 82 / 20 50 60 60 && .SHV WATCHES/WARNINGS/ADVISORIES... AR...NONE. LA...NONE. OK...NONE. TX...NONE. && 09
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SHREVEPORT LA 224 PM CDT FRI MAY 8 2015 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-091930- SEVIER-HOWARD-LITTLE RIVER-HEMPSTEAD-NEVADA-MILLER-LAFAYETTE- COLUMBIA-UNION-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-DE SOTO- RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE-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- 224 PM CDT FRI MAY 8 2015 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 WILL BE POSSIBLE ACROSS THE ENTIRE AREA TODAY AND INTO EARLY THIS EVENING. A COMPLEX OF THUNDERSTORMS MAY MOVE INTO THE AREA LATE THIS AFTERNOON AND TONIGHT AS WELL. SOME OF THESE STORMS COULD BE SEVERE WITH DAMAGING WINDS THE PRIMARY THREAT. IN ADDITION...HEAVY RAINFALL WILL BE POSSIBLE WHICH COULD LEAD TO LOCALIZED FLOODING. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... A COMPLEX OF THUNDERSTORMS MAY STILL BE MOVING ACROSS THE AREA EARLY SATURDAY MORNING. AFTER THIS COMPLEX WEAKENS OR EXITS THE AREA...ISOLATED TO WIDELY SCATTERED THUNDERSTORMS MAY DEVELOP DURING PEAK AFTERNOON HEATING. ANOTHER COMPLEX OF STRONG TO SEVERE THUNDERSTORMS MAY AFFECT THE AREA EARLY SATURDAY EVENING AND INTO THE OVERNIGHT HOURS. DAMAGING WINDS SHOULD BE THE PRIMARY THREATS WITH ANY SEVERE STORMS. A COLD FRONT WILL APPROACH AND MOVE ACROSS THE REGION SUNDAY AND INTO MONDAY...AND WILL BRING THE POSSIBILITY FOR MORE STRONG TO SEVERE THUNDERSTORMS AREAWIDE. DAMAGING WINDS...LARGE HAIL...AND ISOLATED TORNADOES WILL BE POSSIBLE. ADDITIONALLY...RAINFALL AMOUNTS BETWEEN 2 AND 4 INCHES ARE POSSIBLE THROUGH MONDAY MORNING...WHICH COULD LEAD TO A THREAT FOR FLASH FLOODING AND A RENEWED THREAT FOR FLOODING ALONG RIVERS AND LAKES. THE FRONT IS EXPECTED TO STALL JUST SOUTH OF THE AREA EARLY NEXT WEEK...AND THUNDERSTORMS WILL REMAIN IN THE FORECAST THROUGH NEXT THURSDAY AS A RESULT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NECESSARY THIS EVENING OR TONIGHT. 12
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
852 PM CDT FRI MAY 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0845 PM HAIL IDABEL 33.90N 94.82W
05/08/2015 E0.88 INCH MCCURTAIN OK TRAINED SPOTTER
&&
EVENT NUMBER SHV1500391
20SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
918 PM CDT FRI MAY 8 2015
ARZ061-090315-
NEVADA AR-
918 PM CDT FRI MAY 8 2015
...SIGNIFICANT WEATHER ADVISORY FOR NEVADA COUNTY UNTIL 1015 PM
CDT...
AT 918 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
OVER BODCAW...OR 13 MILES SOUTHEAST OF HOPE...MOVING NORTHEAST AT 30
MPH.
DIME SIZE HAIL AND WINDS OF 40 TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.
LOCATIONS IMPACTED INCLUDE...
PRESCOTT...EMMET...ROSSTON...WILLISVILLE...BODCAW...BLUFF CITY...
WHITE OAK LAKE STATE PARK...CALE...SUTTON...MORRIS...BOUGHTON...
LANEBURG...MOUNT MORIAH...WATERLOO AND FALCON.
THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 3390 9330 3384 9329 3384 9326 3383 9326
3383 9323 3380 9318 3382 9314 3378 9310
3370 9311 3347 9329 3347 9347 3375 9347
3395 9340 3396 9338
TIME...MOT...LOC 0217Z 211DEG 24KT 3356 9341
15PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
955 PM CDT FRI MAY 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 PM TSTM WND DMG 5 SW BROKEN BOW 33.98N 94.79W
05/08/2015 MCCURTAIN OK LAW ENFORCEMENT
TREES DOWN ALONG BELPINE LOOP RD BETWEEN IDABEL AND
BROKEN BOW.
&&
EVENT NUMBER SHV1500392
20PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
959 PM CDT FRI MAY 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0930 PM FLASH FLOOD IDABEL 33.90N 94.82W
05/08/2015 MCCURTAIN OK LAW ENFORCEMENT
ROADS CLOSED DUE TO FLOODING FROM HEAVY RAIN.
&&
EVENT NUMBER SHV1500393
20PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1008 PM CDT FRI MAY 08 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0945 PM FLASH FLOOD 11 NNE DETROIT 33.82N 95.20W
05/08/2015 RED RIVER TX LAW ENFORCEMENT
FARM TO MARKET ROAD 195 CLOSED 3 MILES WEST OF THE TOWN
OF MANCHESTER DUE TO FLOODING.
&&
EVENT NUMBER SHV1500394
20The Western Arkansas radar (KSRX), 142 km away, was scanning. The volume nearest the first event began at 07:12 UTC.
2 flash flood. Local standard time, as filed.
Numerous roads across the southern part of the county had high water, with several roads remaining closed due to flooding.
At least 6 inches of water was swiftly flowing across Highway 259 north of Idabel due to heavy rain.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2015Every state in 2015This day in weather historyWarnings in Oklahoma, May 2015
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: 566687, 566689.