Isolated to scattered weakly forced storms formed over parts of western Oklahoma on the 1st and lingered with little to no motion. One of these storms sat over Major county long enough to produce flash flooding.
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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 OUN wrote it up.
Isolated to scattered weakly forced storms formed over parts of western Oklahoma on the 1st and lingered with little to no motion. One of these storms sat over Major county long enough to produce flash flooding.
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 Norman, OK wrote its last area forecast discussion before the first event at Aug 1, 5:23 PM CST, 32 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 623 PM CDT SAT AUG 1 2015 .DISCUSSION... PLEASE SEE THE 00Z AVIATION DISCUSSION BELOW. && .AVIATION... A FEW SHOWERS AND STORMS WILL LINGER THROUGH SUNSET NEAR GAG AND WWR. COVERAGE WILL REMAIN LIMITED SO WILL INCLUDE VCTS FOR NOW AND AMEND IF NECESSARY. SKIES WILL SLOWLY BEGIN TO CLEAR AFTER DARK...ALTHOUGH SOME HIGH CLOUDS MAY PERSIST OVER SPS. && .PREV DISCUSSION... /ISSUED 246 PM CDT SAT AUG 1 2015/ DISCUSSION... SMALL COMPLEX OF STORMS AND EMBEDDED MCV IN SOUTHWEST CONT TO SLOWLY SHIFT EAST THIS AFTN. THERE HAS ALSO BEEN AN UPTICK IN THE CONVECTION JUST OUT AHEAD OF THIS COMPLEX... IN AN INSTABILITY AXIS. THIS ACTIVITY MAY APPROACH THE I-35 CORRIDOR BEFORE DISSIPATING WITH THE LOSS OF DAYTIME HEATING. OTHERWISE... COULD SEE SOME OF THIS CONVECTION LINGER INTO THE EVENING AND EVEN SOME ADDITIONAL DEVELOPMENT FARTHER NORTH ACROSS FAR WESTERN SECTIONS OF THE AREA WITH SOME OVERNIGHT WAA. OTHER THAN PERHAPS SOME ISOLATED ACTIVITY... MUCH OF SUNDAY AND MONDAY LOOKS DRY WITH WARMER TEMPS RETURNING AREA-WIDE. MODELS DO INDICATE A MID-LEVEL DISTURBANCE MOVING THROUGH THE CENTRAL PLAINS MON NIGHT INTO TUESDAY... WHICH WILL BRING A BETTER CHANCE OF RAIN TO MAINLY NORTHERN HALF OF OKLAHOMA. MODELS THEN TRY TO BUILD THE UPPER RIDGE BACK EAST OVER THE PLAINS FOR THE SECOND HALF OF THE UPCOMING WEEK. MARKING A RETURN TO HOT AND HUMID CONDITIONS. THE LATEST GFS DOES BRING SEVERAL SHORTWAVE DISTURBANCES OUT OF THE WEST AND TRIES TO BEAT THE RIDGE DOWN BY LATE IN THE WEEK AND NEXT WEEKEND. THIS COULD RESULT IN ANOTHER SFC FRONT AND ADDITIONAL PRECIP CHANCES AS WE APPROACH THE WEEKEND. ALTHOUGH THERE IS A BIT OF RUN-TO-RUN INCONSISTENCY IN THE EXTENDED PART OF THE FORECAST WITH REGARD TO THE OVERALL STRENGTH OF THE UPPER RIDGE... SO CONFIDENCE IN ANY ONE SOLUTION IS NOT HIGH. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 71 91 71 93 / 20 10 20 10 HOBART OK 72 94 72 95 / 20 20 30 20 WICHITA FALLS TX 73 96 73 98 / 30 20 20 10 GAGE OK 69 93 70 91 / 30 20 20 30 PONCA CITY OK 72 92 72 94 / 10 10 10 10 DURANT OK 73 96 73 98 / 0 0 0 0 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 14/03/03
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE NORMAN OK 1157 AM CDT SAT AUG 1 2015 OKZ004>048-050>052-TXZ083>090-021200- HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD- NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE- BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN- CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON- TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON- JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN- FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY- 1157 AM CDT SAT AUG 1 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN... WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS. .DAY ONE...THIS AFTERNOON AND TONIGHT... .THUNDERSTORMS... A LOOSELY ORGANIZED COMPLEX OF SHOWERS AND THUNDERSTORMS WILL CONTINUE TO SLOWLY EVOLVE ACROSS PORTIONS OF SOUTHWESTERN OKLAHOMA AND WESTERN NORTH TEXAS THROUGH THIS AFTERNOON. BRIEF PERIODS OF HEAVY RAINFALL AND LIGHTNING ARE THE PRIMARY CONCERNS WITH THIS ACTIVITY. ADDITIONAL... ISOLATED THUNDERSTORMS MAY DEVELOP THROUGH THE MID TO LATE AFTERNOON HOURS WITH INCREASED DAYTIME HEATING. HOWEVER... WEAK FORCING WILL ONLY SUPPORT SPOTTY ACTIVITY. ONE OR TWO STRONG STORMS MAY DEVELOP... WITH GUSTY WINDS... FREQUENT LIGHTNING... AND HEAVY RAINFALL THE PRIMARY CONCERNS. ANY REMAINING ACTIVITY THIS EVENING WILL DIMINISH AFTER SUNSET... WITH A FEW ISOLATED SHOWERS LINGERING ACROSS THE REGION INTO EARLY SUNDAY MORNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY... .THUNDERSTORMS... SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE ACROSS THE REGION THROUGH TUESDAY NIGHT. THE GREATEST CHANCES FOR STORMS WILL BE OVER THE WESTERN HALF OF OKLAHOMA AND WESTERN NORTH TEXAS THROUGH MONDAY...SHIFTING TO NORTHERN AND CENTRAL OKLAHOMA EARLY NEXT WEEK. ALTHOUGH ORGANIZED SEVERE STORMS ARE UNLIKELY...A FEW STORMS MAY BECOME STRONG ENOUGH TO BRIEFLY PRODUCE DAMAGING WIND GUSTS. ALSO...DUE TO SLOW STORM MOVEMENT...LOCALIZED FLOODING WILL BE POSSIBLE. .HEAT... AFTER A BRIEF RESPITE FROM THE HEAT THIS WEEKEND...TRIPLE DIGIT HEAT INDICES WILL RETURN TO MUCH OF OKLAHOMA AND NORTH TEXAS NEXT WEEK. GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK. AUSTIN/KURTZ
The Vance AFB radar (KVNX), 45 km away, was scanning. The volume nearest the first event began at 23:53 UTC.
1 flash flood. Local standard time, as filed.
Water was flowing over both lanes of highway 8. The time of this report was estimated.
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, August 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: 590773.