The above normal rainfall for many in Oklahoman continued to make a dent in the historic drought that had lasted for months. The more general rainfall over October and November, as opposed to flooding rainfall, had allowed for a good start to the winter wheat planting.
Every event with a place to put it; 31 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.
The above normal rainfall for many in Oklahoman continued to make a dent in the historic drought that had lasted for months. The more general rainfall over October and November, as opposed to flooding rainfall, had allowed for a good start to the winter wheat planting. Unfortunately, December remained fairly dry. This is not unusual as the winter months (December through February) typically have the lowest average precipitation. Because of the strong end to the autumn months, many have reported a better beginning crop than what was experienced a year ago.
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 Nov 30, 10:52 PM CST, 1 hour 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1052 PM CST WED NOV 30 2011 .AVIATION... 06Z TAFS... VFR CONDITIONS WITH MID AND HIGH CLOUDS EXPECTED UNTIL THURSDAY AFTERNOON/EVENING WHEN MVFR CEILINGS WILL BE POSSIBLE AT SOME OF THE TAF SITES. OTHERWISE A COLD FRONT WILL MOVE ACROSS THE AREA WITH NO PRECIPITATION EXPECTED. && .PREV DISCUSSION... /ISSUED 1049 PM CST WED NOV 30 2011/ UPDATE... ANOTHER CALM NIGHT IS TAKING SHAPE ACROSS THE REGION. AS EXPECTED...SOUTHEAST WINDS HAVE REMAINED SLIGHTLY ELEVATED IN RESPONSE TO PRESSURE FALLS ACROSS SOUTHWEST KS AND THE OKLAHOMA AND TEXAS PANHANDLES. COLD FRONT CURRENTLY SITUATED OVER WESTERN KANSAS AND SOUTHEAST COLORADO WILL CONTINUE TO MOVE SOUTHEAST OVERNIGHT...ENTERING NORTHWEST OKLAHOMA EARLY THURSDAY MORNING. CURRENT FORECAST APPEARS TO BE ON TRACK AND NO GRID UPDATES ARE NECESSARY ATTM. PREV DISCUSSION... /ISSUED 512 PM CST WED NOV 30 2011/ AVIATION... 00Z TAFS... VFR CONDITIONS WILL PREVAIL THROUGHOUT THE TAF PERIOD. HOWEVER... LOW VFR CEILINGS ARE EXPECTED TO DEVELOP IN PARTS OF OKLAHOMA THURSDAY AFTERNOON. PREV DISCUSSION... /ISSUED 343 PM CST WED NOV 30 2011/ DISCUSSION... SOUTHERLY WINDS HAVE RETURNED TO THE FA THIS AFTERNOON WITH WINDS BECOMING BRISK IN THE WEST. COLD FRONT IS EXPECTED TO PUSH SOUTHWARD THROUGH THE CENTRAL PLAINS REACHING NW PARTS OF THE AREA BY AROUND SUNRISE AS A S/W TROUGH MOVES THROUGH THE NRN PLAINS. THE FRONT IS EXPECTED TO CONTINUE SOUTHWARD THROUGH OKLAHOMA AND WESTERN NORTH TEXAS BY LATE THURSDAY. MEANWHILE...STRONG UPPER LEVEL SYSTEM WILL CONTINUE TO DIVE SOUTHWARD OVER THE WESTERN U.S WITH A LOW DEVELOPING VCNTY OF THE CA/AZ BORDER THURSDAY. THE GFS/ECMWF/UKMET ARE FAIRLY SIMILAR WITH THE DEVELOPMENT AND TRACK OF THIS SYSTEM AND WILL BE FOLLOWED FOR THIS FORECAST PACKAGE WITH THE FASTER AND FARTHER EAST NAM IGNORED. THE LOW WILL MOVE LITTLE THROUGH FRIDAY MORNING BEFORE BEGINNING TO EJECT NEWD LATE FRIDAY AS ANOTHER WAVE DROPS SOUTHWARD INTO THE MEAN UPPER TROUGH. RELATIVELY MOIST AIR WILL BEGIN TO BE FORCED UP AND OVER THE FRONTAL BOUNDARY...WITH PRECIPITATION CHANCES INCREASING THURSDAY NIGHT INTO FRIDAY. MOISTURE AND LIFT WILL INCREASE FRIDAY NIGHT INTO SATURDAY AS THE S/W TROUGH IS EJECTED NEWD FROM THE SOUTHERN ROCKIES AND THE SURFACE FRONT LIFTS BACK NORTHWARD. AS A RESULT MORE WIDESPREAD PRECIPITATION IS EXPECTED DURING THAT TIME FRAME. THE WAVE WILL LIFT NEWD INTO THE PLAINS ON SATURDAY WITH THE SURFACE COLD FRONT THEN SURGING BACK SEWD AS A SURFACE LOW TRACKS FROM THE TX PANHANDLE INTO SW MO BY THE END OF THE DAY. PRECIPITATION WILL END FROM WEST TO EAST AS THE WAVE EXITS SATURDAY EVENING/EARLY SUNDAY. PRECIPITATION TYPE WILL LIKELY REMAIN MAINLY LIQUID THROUGH THE BULK OF THE EVENT. THERE WILL BE SOME POTENTIAL FOR SOME FREEZING RAIN IN PARTS OF THE NORTHWEST AT THE ONSET OF THE PRECIP FRIDAY MORNING WITH TEMPS NEAR THE FREEZING MARK. HOWEVER...ANY AMOUNTS AT THIS TIME WOULD BE LIGHT AND EFFECTS MINIMAL. AS THE STORM SYSTEM EXITS SATURDAY EVENING...RAIN MAY CHANGE TO SNOW IN NRN AND CENTRAL AREAS BEFORE ENDING. NO SIGNIFICANT ACCUMULATION IS EXPECTED. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 36 56 34 43 / 0 10 20 30 HOBART OK 34 54 32 39 / 0 0 10 30 WICHITA FALLS TX 38 60 38 46 / 0 10 30 40 GAGE OK 29 42 26 39 / 0 0 10 20 PONCA CITY OK 34 52 29 43 / 0 10 10 10 DURANT OK 35 61 42 53 / 0 10 30 20 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && 84/25/25
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1145 AM CST WED NOV 30 2011
OKZ004>048-050>052-TXZ083>090-011000-
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-
1145 AM CST WED NOV 30 2011
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THIS AFTERNOON AND TONIGHT...
THUNDERSTORM OUTLOOK...
NO THUNDERSTORMS ARE EXPECTED.
DISCUSSION...
A RELATIVELY DRY AIRMASS WILL REMAIN IN PLACE THROUGH
THURSDAY MORNING.
PROBABILITY TABLE...
VALID THROUGH 700 AM CST THURSDAY DEC 1.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...0 PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...
THUNDERSTORM OUTLOOK...
NO THUNDERSTORMS ARE EXPECTED.
OTHER HAZARDOUS WEATHER...
A COLD FRONT WILL USHER IN COLDER AND DRIER AIR THURSDAY INTO THURSDAY
NIGHT. LIGHT RAIN MAY DEVELOP ACROSS PARTS OF SOUTHERN OKLAHOMA
AND WESTERN NORTH TEXAS THURSDAY NIGHT AND FRIDAY MORNING AS A STORM
SYSTEM APPROACHES FROM THE WEST. SOME OF THE PRECIPITATION MAY FALL
AS LIGHT FREEZING RAIN ACROSS SOUTHWEST AND WEST CENTRAL OKLAHOMA BEFORE
TEMPERATURES SLOWLY WARM ABOVE FREEZING. ANY ICE ACCUMULATIONS ARE
EXPECTED TO BE VERY LIGHT. SOUTHERLY SURFACE WINDS SHOULD RETURN BY
LATE FRIDAY MORNING WHICH WILL KEEP MOST AREAS ABOVE FREEZING
THROUGH EARLY SATURDAY MORNING.
ANOTHER COLD FRONT WILL ENTER NORTHWEST OKLAHOMA EARLY SATURDAY
MORNING AND SHOULD CLEAR SOUTHEAST OKLAHOMA DURING THE EARLY MORNING
HOURS SUNDAY. THEREFORE...PARTS OF NORTHWEST AND WEST CENTRAL
OKLAHOMA MAY SEE RAIN CHANGE TO A WINTRY MIX DURING THE DAYLIGHT
HOURS SATURDAY. BY SATURDAY EVENING...THE BEST OPPORTUNITY FOR RAIN
WILL BE CONFINED TO SOUTHERN AND EASTERN OKLAHOMA. ANY ICE AND OR
SNOW ACCUMULATIONS SATURDAY ARE EXPECTED TO BE LIGHT WITH MINIMAL
DISRUPTIONS TO TRAVEL.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY
5 AM THURSDAY.The national radar mosaic for the moment the first event began.
31 drought. Local standard time, as filed.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought continued through the month.
D3 (extreme) drought improved to D2 (severe) by December 20th.
D3 (extreme) drought continued through the month.
D3 (extreme) drought improved to D2 (severe) by December 20th.
D3 (extreme) drought improved to D2 (severe) by December 20th.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) drought continued through the month.
D2 (severe) worsened to D3 (extreme) by December 20th.
D2 (severe) drought continued through the month.
D3 (extreme) drought continued through the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Oklahoma in 2011Every state in 2011This day in weather historyWarnings in Oklahoma, December 2011
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: 358553, 358554, 358555, 358556, 358557, 358558, 358559, 358560, 358561, 358562, 358563, 358567, 358568, 358569, 358570, 358571, 358572, 358573, 358577, 358579, 358580, 358581, 358582, 358583, 358584, 358585, 358586, 358587, 358588, 358589, 358590.