Numerous supercells and multicells developed over the High Plains from west Texas to western Nebraska during the afternoon. These eventually congealed into an extensive MCS that moved through western north Texas in the evening, resulting in a severe wind report.
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 OUN wrote it up.
Numerous supercells and multicells developed over the High Plains from west Texas to western Nebraska during the afternoon. These eventually congealed into an extensive MCS that moved through western north Texas in the evening, resulting in a severe wind report.
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 7, 5:39 PM CST, 2 hours 51 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
639 PM CDT WED AUG 7 2013
.AVIATION...
SCATTERED STORMS ARE EXPECTED OVER THE NEXT 24 HOURS WITH THE
HIGHEST CHANCES IN NORTHERN OKLAHOMA. BUT THE EXPECTED SCATTERED
NATURE OF THE STORMS COMPLICATE SPECIFIC FORECASTING AT TAF
SITES... ESPECIALLY IN THE FIRST 9 HOURS WHERE PROBABILITY IS NOT
HIGH ENOUGH TO INCLUDE A TEMPO GROUP. BUT THERE ARE STORM CHANCES
EXIST EVEN AT TIMES WHEN THEY ARE NOT INCLUDED IN THE TAF.
&&
.PREV DISCUSSION... /ISSUED 359 PM CDT WED AUG 7 2013/
DISCUSSION...
THE RAIN OUTLOOK FOR TONIGHT REMAINS QUITE UNCLEAR. SURFACE
CONVERGENCE ALONG A STALLED FRONT WOULD PROVIDE A FOCUS...BUT
COOLER SURFACE CONDITIONS AND RELATIVELY HIGH CIN VALUES SUGGEST
THAT CONVECTION MAY HAVE A VERY DIFFICULT TIME GETTING STARTED.
CONVECTION IN THE HIGH PLAINS HAS STARTED ALREADY...AND THIS IS
MORE LIKELY TO AFFECT OUR FORECAST AREA. MODELS HAVE AT LEAST BEEN
FAIRLY CONSISTENT WITH HANDLING THIS SET OF FEATURES...BRINGING A
SUBSTANTIAL CONVECTIVE COMPLEX INTO NORTHWEST AND THEN NORTH-
CENTRAL OKLAHOMA LATE THIS EVENING AND OVERNIGHT.
THE CONVECTIVE SYSTEM IS FORECAST TO LINGER OVER THE NORTHERN PART
OF OKLAHOMA AS LOW-LEVEL INFLOW OVER THE STALLED FRONT CONTINUES
INTO TOMORROW AND POSSIBLY TOMORROW NIGHT AND FRIDAY. THE FRONT
IS THEN FORECAST TO ADVANCE INTO TEXAS...TAKING MOST OF THE RAIN
WITH IT. RAIN CHANCES WILL BE RELATIVELY LOW FRIDAY NIGHT AND
SATURDAY...BUT RENEWED CHANCES WILL OCCUR AT TIMES DURING THE
REMAINDER OF THE FORECAST PERIOD AS VARIOUS WEAK WAVES MOVE
THROUGH THE GENERALLY ZONAL FLOW ALOFT.
THE HEAT ADVISORY HAS BEEN CANCELED FOR PART OF OUR FORECAST
AREA...DUE TO THE LOWER-THAN-ANTICIPATED APPARENT TEMPERATURES.
&&
.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 76 93 73 90 / 40 40 50 30
HOBART OK 72 96 73 91 / 30 40 50 20
WICHITA FALLS TX 76 101 76 98 / 30 30 40 30
GAGE OK 69 83 67 81 / 50 50 40 20
PONCA CITY OK 73 85 70 85 / 60 70 50 30
DURANT OK 78 99 73 99 / 20 20 20 30
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...HEAT ADVISORY UNTIL 1 AM CDT THURSDAY FOR OKZ020-026-030>032-037-
039>048-050>052.
TX...HEAT ADVISORY UNTIL 1 AM CDT THURSDAY FOR TXZ085>090.
&&HAZARDOUS WEATHER OUTLOOK...UPDATE
NATIONAL WEATHER SERVICE NORMAN OK
855 PM CDT WED AUG 7 2013
OKZ004>048-050>052-TXZ083>090-081000-
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-
855 PM CDT WED AUG 7 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TONIGHT...
THUNDERSTORM OUTLOOK...
THERE IS A RISK OF SEVERE THUNDERSTORMS LATE THIS EVENING AND
OVERNIGHT ACROSS THE NORTHERN-HALF OF OKLAHOMA.
LOCATION...
THE RISK AREA COVERS LOCATIONS NORTH OF INTERSTATE-40.
TIMING...
THE MOST LIKELY TIME FOR SEVERE THUNDERSTORMS WILL BE AFTER
10 PM.
IMPACTS...
THE MAIN CONCERN WITH ANY SEVERE THUNDERSTORM WILL BE DAMAGING
WIND GUSTS UP TO 70 MPH.
RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS
THE RISK AREA SHOULD BE PREPARED FOR SEVERE WEATHER OPERATIONS
INTO THE OVERNIGHT HOURS.
DISCUSSION...
NUMEROUS STORMS OVER THE PANHANDLES ARE EXPECTED TO CONSOLIDATE
INTO ONE OR MORE CLUSTERS AND MOVE EASTWARD LATE THIS EVENING
AND OVERNIGHT. THE PRIMARY AREAS THAT COULD BE AFFECTED WILL BE
FAR NORTHWEST AND NORTH-CENTRAL OKLAHOMA...INCLUDING WOODWARD...
ALVA...ENID...AND PONCA CITY. HOWEVER...LOCATIONS FARTHER SOUTH
TOWARD THE INTERSTATE-40 CORRIDOR SHOULD NOT LET THEIR GUARD
DOWN. ALTHOUGH THE PRIMARY CONCERN WILL BE DAMAGING WIND GUSTS
ALONG THE LEADING EDGE OF STORMS...A FEW STORMS COULD ALSO
PRODUCE HAIL UP TO THE SIZE OF HALF DOLLARS.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT THURSDAY AUG 8.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...60 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
THUNDERSTORM OUTLOOK...
STORM CHANCES WILL CONTINUE ACROSS THE AREA THURSDAY INTO THE
WEEKEND AND THE EARLY PART OF NEXT WEEK AS A WEAK COLD FRONT REMAINS
IN THE AREA. THERE WILL BE A CHANCE FOR A FEW SEVERE THUNDERSTORMS
ON THURSDAY ACROSS OKLAHOMA AND WESTERN NORTH TEXAS AS SUFFICIENT
INSTABILITY WILL CONTINUE TO BE PRESENT. LARGE HAIL AND DAMAGING
WIND GUSTS WILL BE THE PRIMARY CONCERNS. HEAVY RAINFALL AND LOCALIZED
FLOODING WILL ALSO BE POSSIBLE.
OTHER HAZARDOUS WEATHER...
HOT CONDITIONS WILL CONTINUE THROUGH THURSDAY MAINLY ACROSS FAR
SOUTHERN OKLAHOMA AND ALL OF WESTERN NORTH TEXAS. PLEASE TAKE STEPS
TO PREVENT HEAT RELATED ILLNESSES.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
THURSDAY.The Altus AFB radar (KFDR), 88 km away, was scanning. The volume nearest the first event began at 02:27 UTC.
1 thunderstorm wind. Local standard time, as filed.
An empty semi was overturned 2 miles west of Goodlett.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2013Every state in 2013This day in weather historyWarnings in Texas, August 2013
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: 466419.