Thunderstorms developed across northern Oklahoma, with a couple of storms becoming severe. Damage was reported in Ponca City, with additional damage reported north of Holdenville.
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.
Thunderstorms developed across northern Oklahoma, with a couple of storms becoming severe. Damage was reported in Ponca City, with additional damage reported north of Holdenville.
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 Sep 8, 2:38 PM CST, 1 minute earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 338 PM CDT TUE SEP 8 2009 .DISCUSSION... SCATTERED THUNDERSTORMS HAVE FORMED AGAIN IN THE NO-CAP/MODERATE INSTABILITY ENVIRONMENT OVER OKLAHOMA AND NORTH TEXAS. THERE WILL PROBABLY BE SOME ENHANCEMENT TO COVERAGE AND/OR INTENSITY ALONG AN OUTFLOW BOUNDARY THAT REMAINS FROM CONVECTION THIS MORNING IN FAR NORTHERN OKLAHOMA. DAILY SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH FRIDAY... AS NO SIGNIFICANT CHANGE IN THE WEATHER OCCURS DURING THAT TIME. A STRONG COLD FRONT IS FORECAST TO ARRIVE FRIDAY NIGHT. THERE IS STILL SOME QUESTION ABOUT WHERE THE ASSOCIATED UPPER LOW WILL BE DURING THE WEEKEND AND EARLY NEXT WEEK... AND THIS WILL HAVE A SIGNIFICANT EFFECT ON OUR WEATHER. THIS FORECAST CONTINUES TO BE BASED ON THE ECMWF PROGS FOR THE LATER PERIODS. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 69 87 69 89 / 30 30 40 30 HOBART OK 70 88 69 93 / 30 30 30 20 WICHITA FALLS TX 73 92 71 93 / 30 20 20 10 GAGE OK 66 86 64 89 / 30 30 40 30 PONCA CITY OK 70 83 69 86 / 50 40 40 50 DURANT OK 70 93 69 91 / 20 30 20 10 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 09/23
HAZARDOUS WEATHER OUTLOOK...UPDATE
NATIONAL WEATHER SERVICE NORMAN OK
315 PM CDT TUE SEP 8 2009
OKZ004>048-050>052-TXZ083>090-091000-
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-
315 PM CDT TUE SEP 8 2009
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THIS AFTERNOON THROUGH TONIGHT...
THUNDERSTORM OUTLOOK...
ISOLATED SEVERE THUNDERSTORMS POSSIBLE THROUGH MID EVENING.
DISCUSSION...
SCATTERED THUNDERSTORMS WILL OCCUR THROUGH THIS EVENING ACROSS
OKLAHOMA AND WESTERN NORTH TEXAS WITH ISOLATED SEVERE STORMS
POSSIBLE. ALTHOUGH DAYTIME HEATING COULD RESULT IN AN ISOLATED
STRONG TO SEVERE STORM MOST ANYWHERE IN OKLAHOMA AND WESTERN NORTH
TEXAS... THE BEST CHANCES FOR SEVERE STORMS WILL BE ACROSS THE
NORTHERN HALF OF OKLAHOMA. MODERATE TO STRONG INSTABILITIES HAVE
POOLED ACROSS NORTHERN OKLAHOMA THIS AFTERNOON. MEANWHILE... THE
PRESENCE OF A SURFACE BOUNDARY AND SOMEWHAT STRONGER WINDS ALOFT...
WILL ALSO PROVIDE SOMEWHAT BETTER SUPPORT FOR SEVERE STORMS ACROSS
NORTHERN OKLAHOMA. THE MAIN SEVERE WEATHER RISKS WILL BE WINDS TO
70 MPH AND HAIL TO NEAR THE SIZE OF QUARTERS. LOCALLY HEAVY RAIN AND
FREQUENT CLOUD TO GROUND LIGHTNING CAN ALSO BE EXPECTED.
THE SEVERE WEATHER THREAT WILL DIMINISH FROM MID TO LATE EVENING AS
SURFACE TEMPERATURES GRADUALLY COOL... ALTHOUGH A CHANCE FOR
THUNDERSTORMS WILL CONTINUE OVERNIGHT MAINLY OVER NORTH CENTRAL
OKLAHOMA.
PROBABILITY TABLE...
VALID THROUGH 700 AM CDT WEDNESDAY SEP 9.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR.....40 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...
THUNDERSTORM OUTLOOK...
A WEAK COLD FRONT WILL APPROACH THE REGION LATE WEDNESDAY AND THEN
STALL...MAINTAINING A CHANCE OF THUNDERSTORMS ESPECIALLY OVER
NORTHERN AND CENTRAL OKLAHOMA. THE CHANCE OF THUNDERSTORMS MAY
INCREASE TOWARD THE END OF THE WEEK WHEN A STRONGER FRONT IS
EXPECTED TO ARRIVE.
OTHER HAZARDOUS WEATHER...
NONE.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 7 AM
WEDNESDAY.
CJSSPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
258 PM CDT TUE SEP 8 2009
OKZ008-013-082015-
NOBLE OK-KAY OK-
258 PM CDT TUE SEP 8 2009
...SIGNIFICANT WEATHER ADVISORY...
THIS SIGNIFICANT WEATHER ADVISORY IS FOR KAY AND NOBLE COUNTIES.
A STRONG THUNDERSTORM WAS LOCATED 4 MILES NORTH OF MARLAND AT 257 PM
CDT...MOVING NORTH AT 20 MPH. THIS STORM WILL AFFECT PONCA CITY
AROUND 315 PM TO 330 PM. A SECOND STRONG STORM WAS 5 MILES NORTH OF
PERRY.
HAZARDS IN THE WARNING INCLUDE...
HAIL UP TO THE SIZE OF DIMES...
WIND GUSTS TO 50 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...
MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING
WEATHER CONDITIONS.
LAT...LON 3691 9685 3669 9696 3669 9701 3670 9703
3669 9706 3660 9704 3659 9702 3629 9717
3635 9745 3693 9729
CMSThe Vance AFB radar (KVNX), 93 km away, was scanning. The volume nearest the first event began at 20:37 UTC.
2 thunderstorm wind, 1 hail. Local standard time, as filed.
The back wall of an industrial building was partially blown down. A few power lines were also downed by the severe winds. Monetary damages were estimated.
A few large tree limbs were downed along Highway 48. Nickel-size hail was also reported at this location. Monetary damages were estimated.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2009Every state in 2009This day in weather historyWarnings in Oklahoma, September 2009
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: 191834, 191835, 191836.