Rainfall ranged from somewhat below to somewhat above average during September in Oklahoma. The northern half of the state generally saw a marginal improvement in drought conditions, while the southern half saw marginal worsening with less rainfall.
Every event with a place to put it; 39 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Rainfall ranged from somewhat below to somewhat above average during September in Oklahoma. The northern half of the state generally saw a marginal improvement in drought conditions, while the southern half saw marginal worsening with less rainfall.
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 31, 9:55 PM CST, 2 hours 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1055 PM CDT SAT AUG 31 2013 .AVIATION... 01/06Z TAFS... VFR CONDITIONS ARE EXPECTED THROUGH THE PERIOD. A WEAK COLD FRONT WILL MOVE INTO THE REGION SUNDAY. ISOLATED SHRA/TSRA WILL BE POSSIBLE...BUT PROBS TOO LOW AT ANY GIVEN SITE TO INCLUDE IN THE TAF. WINDS BOTH AHEAD OF AND BEHIND THE FRONT ARE EXPECTED TO REMAIN LIGHT. && .PREV DISCUSSION... /ISSUED 955 PM CDT SAT AUG 31 2013/ .UPDATE... THE FORECAST IS LARGELY ON TRACK...AND MADE ONLY MINOR ADJUSTMENTS TO HOURLY TEMPS...DEWPOINTS...AND WINDS. EXPECT ANOTHER MILD NIGHT WITH A FEW CLOUDS MOVING INTO NORTHERN AND WESTERN PORTIONS OF OKLAHOMA. && .PREV DISCUSSION... /ISSUED 607 PM CDT SAT AUG 31 2013/ AVIATION... 01/00Z TAFS... VFR CONDITIONS ARE EXPECTED THROUGHOUT THE PERIOD. WEAK COLD FRONT WILL MOVE INTO NW OK SUNDAY MORNING AND THEN CONTINUE SWD THROUGH THE DAY SHIFTING WINDS TO THE N/NE. A FEW SHOWERS/TSRA POSSIBLE IN VCNTY OF THE FRONT BUT CONFIDENCE IN COVERAGE AND LOCATION IS TOO LOW TO INCLUDE IN TAF ATTM. PREV DISCUSSION..,. /ISSUED 225 PM CDT SAT AUG 31 2013/ DISCUSSION... VERY HOT CONDITIONS ACROSS OKLAHOMA AND WESTERN NORTH TEXAS TODAY AND THIS WILL CONTINUE ACROSS PARTS OF THE AREA ON SUNDAY. A WEAK COLD FRONT WILL APPROACH NORTHERN OKLAHOMA LATE TONIGHT AND THEN MOVE SOUTH ACROSS OKLAHOMA INTO NORTH TEXAS SUNDAY AND SUNDAY NIGHT. THIS FRONT WILL BRING SOME COOLER AND DRIER AIR INTO THE AREA ALONG WITH A CHANCE FOR A FEW SHOWERS AND THUNDERSTORMS. RAIN COULD BEGIN TO AFFECT NORTHWEST OKLAHOMA LATE TONIGHT WITH THE BEST OPPORTUNITY COMING LATE TOMORROW INTO TOMORROW NIGHT ACROSS THE SOUTHERN HALF OF OKLAHOMA INTO NORTH TEXAS. THERE WILL BE SOME LINGERING PRECIP CHANCES ALONG THE RED RIVER ON MONDAY WITH THE REMAINDER OF THE UPCOMING WEEK REMAINING DRY WITH A CONTINUATION OF ABOVE NORMAL TEMPS. UPPER RIDGE WILL CONTINUE TO DOMINATE THE WEATHER ACROSS THE SOUTHERN PLAINS INTO NEXT WEEKEND. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 73 98 72 91 / 0 20 30 10 HOBART OK 74 100 72 94 / 0 20 30 20 WICHITA FALLS TX 74 103 73 95 / 0 20 40 30 GAGE OK 69 93 65 90 / 10 30 30 10 PONCA CITY OK 73 95 68 89 / 10 20 20 10 DURANT OK 75 101 73 96 / 10 10 40 30 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 84/02
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
615 PM CDT SAT AUG 31 2013
OKZ004>048-050>052-TXZ083>090-011200-
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-
615 PM CDT SAT AUG 31 2013
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...TONIGHT...
THUNDERSTORM OUTLOOK...
NO THUNDERSTORMS ARE EXPECTED THROUGH TONIGHT.
DISCUSSION...
A HOT AND STABLE AIRMASS WILL REMAIN IN PLACE OVER THE
AREA...PREVENTING THUNDERSTORM DEVELOPMENT.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SUNDAY SEP 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...5 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...
THUNDERSTORM OUTLOOK...
THUNDERSTORMS WILL BE POSSIBLE SUNDAY AND MONDAY AS A COLD FRONT MOVES
INTO THE AREA. SEVERE WEATHER IS NOT EXPECTED.
OTHER HAZARDOUS WEATHER...
HOT WEATHER IS AGAIN EXPECTED ON SUNDAY... ESPECIALLY ACROSS SOUTHERN
OKLAHOMA AND NORTH TEXAS. A WEAK FRONT WILL BRING SOME RELIEF FROM
THE HEAT BY MONDAY.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
SUNDAY.
MAXWELL/AUSTINThe national radar mosaic for the moment the first event began.
39 drought. Local standard time, as filed.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D1 (moderate) drought continued through the month with persistent dry conditions.
D2 (severe) drought existed at the beginning of the month, but had improved slightly to D1 (moderate) by the end of the month.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D2 (severe) drought existed at the beginning of the month, but had improved slightly to D1 (moderate) by the end of the month.
D0 (abnormally dry) drought existed at the beginning of the month, but had worsened slightly to D1 (moderate) by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought existed at the beginning of the month, but had worsened slightly to D1 (moderate) by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D2 (severe) drought continued through the month with persistent dry conditions.
D2 (severe) drought existed at the beginning of the month, but had improved slightly to D1 (moderate) by the end of the month.
D1 (moderate) drought existed at the beginning of the month, but had improved slightly to D0 (abnormally dry) by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought existed at the beginning of the month, but had worsened slightly to D1 (moderate) by the end of the month.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D3 (extreme) drought continued through the month with persistent dry conditions.
D3 (extreme) drought continued through the month with persistent dry conditions.
D1 (moderate) drought existed at the beginning of the month, but had worsened slightly to D2 (severe) by the end of the month.
No drought was present at the beginning of the month, but persistent dry conditions allowed the development of D0 (abnormally dry) drought by the end of the month.
D3 (extreme) drought existed at the beginning of the month, but had worsened to D4 (exceptional) drought by the end of the month.
D1 (moderate) drought existed at the beginning of the month, but had worsened slightly to D2 (severe) by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D2 (severe) drought continued through the month with persistent dry conditions.
No drought was present at the beginning of the month, but persistent dry conditions allowed the development of D0 (abnormally dry) drought by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D1 (moderate) drought existed at the beginning of the month, but had improved slightly to D0 (abnormally dry) by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D1 (moderate) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought existed at the beginning of the month, but had worsened slightly to D1 (moderate) by the end of the month.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D2 (severe) drought existed at the beginning of the month, but had improved to D0 (abnormally dry) by the end of the month.
No drought was present at the beginning of the month, but persistent dry conditions allowed the development of D0 (abnormally dry) drought by the end of the month.
D1 (moderate) drought continued through the month with persistent dry conditions.
D4 (exceptional) drought continued through the month with persistent dry conditions.
D2 (severe) drought continued through the month with persistent dry conditions.
D0 (abnormally dry) drought continued through the month with persistent dry conditions.
D1 (moderate) drought existed at the beginning of the month, but had improved slightly to D0 (abnormally dry) by the end of the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2013Every state in 2013This day in weather historyWarnings in Oklahoma, September 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: 475563, 475564, 475565, 475566, 475567, 475568, 475569, 475570, 475571, 475572, 475573, 475574, 475575, 475576, 475577, 475578, 475579, 475580, 475581, 475582, 475583, 475584, 475585, 475587, 475588, 475589, 475590, 475591, 475592, 475593, 475594, 475595, 475596, 475597, 475598, 475599, 475600, 475601, 475602.