A frontal boundary focused shower and thunderstorm development across southeastern Oklahoma on the 21st and 22nd. Widespread heavy rainfall fell across the region as a result of several periods of showers and thunderstorms.
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 TSA wrote it up.
A frontal boundary focused shower and thunderstorm development across southeastern Oklahoma on the 21st and 22nd. Widespread heavy rainfall fell across the region as a result of several periods of showers and thunderstorms. This heavy rainfall resulted in moderate flooding of the Kiamichi River near Clayton.
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 Tulsa, OK wrote its last area forecast discussion before the first event at Nov 21, 11:21 PM CST, 3 hours 39 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1121 PM CST MON NOV 21 2011
.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
AREA OF MODERATE RAIN WILL SHIFT EAST OF THE TAF SITES BY ISSUANCE
TIME. SOME LOCATIONS MAY BE EXPERIENCING VFR CONDITIONS AT THAT
TIME...HOWEVER RAPID DETERIORATION WILL TAKE PLACE BEFORE 09Z
IN NEAR SATURATED LOW LEVEL AIRMASS WITH IFR AND EVEN LIFR
PREVAILING. SLOW IMPROVEMENT AFTER 15Z TUESDAY WITH EASTERN
OKLAHOMA LOCATIONS CLEARING OUT TOWARD 00Z. MVFR CEILINGS WILL
LINGER OVER NW ARKANSAS THROUGH 06Z.
&&
.PREV DISCUSSION... /ISSUED 917 PM CST MON NOV 21 2011/
..UPDATE...
DISCUSSION...
LOCALIZED...BUT SIGNIFICANT...FLOODING IS ONGOING
ACROSS PARTS OF FAR SOUTHEAST OK WITH NUMEROUS REPORTS
OF SWIFT WATER RESCUES AND ROADS UNDERWATER ACROSS
SRN LE FLORE COUNTY. HEAVIEST RAINFALL THE REMAINDER
OF THE EVENING AND EARLY OVERNIGHT HOURS IS EXPECTED
TO REMAIN ACROSS THIS REGION AND INTO PARTS OF NW AR
WITH ANOTHER 1 TO 2 INCHES POSSIBLE. FLASH FLOOD WATCH
WILL CONTINUE HERE...BUT HAVE TRIMMED BACK THE NWRN
EDGE OF THE WATCH ACROSS NE OK.
UPDATED PRODUCTS ARE OUT.
&&
.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 6 AM TUESDAY FOR OKZ049-OKZ053-OKZ063-
OKZ068-OKZ069-OKZ070-OKZ071-OKZ072-OKZ073-OKZ074-OKZ075-
OKZ076.
AR...FLASH FLOOD WATCH UNTIL 6 AM TUESDAY FOR ARZ001-ARZ002-ARZ010-
ARZ011-ARZ019-ARZ020-ARZ029.
&&
AVIATION...14HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 241 AM CST TUE NOV 22 2011 ARZ001-002-010-011-019-020-029-OKZ049-053>076-221100- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 241 AM CST TUE NOV 22 2011 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...REST OF TONIGHT. NO HAZARDOUS WEATHER IS EXPECTED THROUGH THE REST OF TONIGHT. DISCUSSION... WIDESPREAD SHOWERS AND THUNDERSTORMS HAVE MOVED OUT OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS...BRINGING AN END TO THE HEAVY RAIN THREAT. RUNOFF FROM EARLIER RAINS WILL CONTINUE TO CAUSE FLOODING ISSUES ACROSS PUSHMATAHA AND LE FLORE COUNTIES. ISOLATED SHOWERS WILL REMAIN POSSIBLE NEAR THE KANSAS AND MISSOURI BORDERS...WITH ONLY VERY SMALL ADDITIONAL ACCUMULATIONS THAT WILL NOT CREATE ANY ADDITIONAL FLOODING ISSUES. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... SPOTTER ACTIVATION NOT EXPECTED. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. TUESDAY THROUGH THURSDAY...NO HAZARDS. FRIDAY AND SATURDAY...THUNDERSTORM POTENTIAL. SUNDAY...NO HAZARDS. EXTENDED DISCUSSION... THE NEXT STORM SYSTEM AND COLD FRONT WILL ARRIVE LATE THIS WEEK INTO THE WEEKEND. SOUTHERLY WINDS WILL INCREASE AHEAD OF THE SYSTEM ALLOWING DRY AND MILD CONDITIONS FOR THANKSGIVING. THUNDERSTORM CHANCES INCREASE FRIDAY AND SATURDAY AS THE SYSTEM PASSES. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
913 PM CST MON NOV 21 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0830 PM FLASH FLOOD TALIHINA 34.75N 95.05W
11/21/2011 LE FLORE OK PUBLIC
SEVERAL ROADS IN TOWN CLOSED OR FLOODED OVER. REPORTS OF
PEOPLE LEAVING HOUSES.
0901 PM FLASH FLOOD 8 SW HODGEN 34.76N 94.73W
11/21/2011 LE FLORE OK BROADCAST MEDIA
MULTIPLE ROADS ACROSS SOUTHERN LE FLORE COUNTY
IMPASSABLE. WATER RESCUE UNDERWAY AT CEDAR LAKE AND
HONTUBBY.
0910 PM FLASH FLOOD OCTAVIA 34.53N 94.70W
11/21/2011 LE FLORE OK FIRE DEPT/RESCUE
MASSIVE FLOODING IN AND AROUND TOWN. HWY 144 CLOSED DUE
TO HIGH WATER. WATER RESCUE UNDERWAY.
&&
JDSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
933 PM CST MON NOV 21 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0912 PM FLASH FLOOD 8 SW HODGEN 34.76N 94.73W
11/21/2011 LE FLORE OK BROADCAST MEDIA
REPORT OF RVS BEING WASHED AWAY NEAR CEDAR LAKE.
&&
JDSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
1107 PM CST MON NOV 21 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1106 PM FLOOD TALIHINA 34.75N 95.05W
11/21/2011 LE FLORE OK BROADCAST MEDIA
SEVERAL ROADS BLOCKED OFF BY LAW ENFORCEMENT
&&
JBMThe national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Kiamichi River near Clayton rose above its flood stage of 17 feet at 3:00 am CST on November 22nd. The river crested at 19.65 feet at 12:00 pm CST on the 23rd, resulting in moderate flooding. The river fell below its flood stage at 11:30 pm CST on the 23rd.
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, November 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: 354955.