Alert archive / Oklahoma / Flash Flood Warnings in 2011
Flash Flood Warning 71, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Nov 21, 2011, 6:27 PM CST for LeFlore County, Pushmataha County, Oklahoma. It was in force for 4 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Nov 21, 2011, 6:27 PM CST (00:27 UTC)
- Expired
- Nov 21, 2011, 10:30 PM CST
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties LeFlore County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 116 km from the middle of the area, began a volume at 00:28 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Nov 21, 8:30 PM CST | FLASH FLOOD | Talihina, OK | SEVERAL ROADS IN TOWN CLOSED OR FLOODED OVER. REPORTS OF PEOPLE LEAVING HOUSES. |
| Nov 21, 9:01 PM CST | FLASH FLOOD | 8 Sw Hodgen, OK | MULTIPLE ROADS ACROSS SOUTHERN LE FLORE COUNTY IMPASSABLE. WATER RESCUE UNDERWAY AT CEDAR LAKE AND HONTUBBY. |
| Nov 21, 9:10 PM CST | FLASH FLOOD | Octavia, OK | MASSIVE FLOODING IN AND AROUND TOWN. HWY 144 CLOSED DUE TO HIGH WATER. WATER RESCUE UNDERWAY. |
| Nov 21, 9:12 PM CST | FLASH FLOOD | 8 Sw Hodgen, OK | REPORT OF RVS BEING WASHED AWAY NEAR CEDAR LAKE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.5 hours before the alert went out and 211 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 413 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 265 m²/s²
- 0-3 km storm-relative helicity
- 407 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
189
WGUS54 KTSA 220027
FFWTSA
OKC079-127-220430-
/O.NEW.KTSA.FF.W.0071.111122T0027Z-111122T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
627 PM CST MON NOV 21 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA...
SOUTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA...
* UNTIL 1030 PM CST
* AT 626 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 2 TO 4
INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 3
POSSIBLE THIS EVENING.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
ANTLERS...CLAYTON...ALBION...BIG CEDAR...CLAYTON LAKE STATE PARK...
CLOUDY...DUNBAR...HEAVENER...HEAVENER RUNESTONE STATE PARK...
HOWE...KELLOND...KIAMICHI...KOSOMA...LAKE WISTER STATE PARK...
MOYERS...MUSE...NASHOBA...OCTAVIA...OLETA...RATTAN...SNOW...
STANLEY...TALIHINA...TALIMENA STATE PARK...TUSKAHOMA...WHITESBORO
AND WISTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.
LOW WATER CROSSINGS IN HILLY TERRAIN ARE ESPECIALLY DANGEROUS IN
HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND
ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER
TO CARRY VEHICLES AWAY.
&&
LAT...LON 3416 9578 3450 9579 3451 9568 3460 9568
3460 9552 3468 9551 3468 9506 3485 9506
3486 9500 3494 9499 3501 9445 3450 9447
3450 9504 3424 9504 3424 9514 3416 9515
$$1 follow-up statement
942
WGUS74 KTSA 220314
FFSTSA
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
914 PM CST MON NOV 21 2011
OKC079-127-220430-
/O.CON.KTSA.FF.W.0071.000000T0000Z-111122T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LE FLORE OK-PUSHMATAHA OK-
914 PM CST MON NOV 21 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR PUSHMATAHA AND SOUTHERN
LE FLORE COUNTIES UNTIL 1030 PM CST...
AT 908 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE WARNED AREA. 4 TO 6
INCHES OF RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 2
INCHES POSSIBLE. SIGNIFICANT FLOODING HAS BEEN REPORTED IN
TALIHINA...HONOBIA...OCTAVIA AND HONEYBEE. NUMEROUS ROAD CLOSURES
AND SEVERAL HIGH WATER RESCUES HAVE ALSO BEEN REPORTED IN THESE
AREAS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ANTLERS...CLAYTON...ALBION...BIG CEDAR...CLAYTON LAKE STATE PARK...
CLOUDY...DUNBAR...HEAVENER...HEAVENER RUNESTONE STATE PARK...HOWE...
KELLOND...KIAMICHI...KOSOMA...LAKE WISTER STATE PARK...MOYERS...
MUSE...NASHOBA...OCTAVIA...OLETA...RATTAN...SNOW...STANLEY...
TALIHINA...TALIMENA STATE PARK...TUSKAHOMA...WHITESBORO AND WISTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.
LOW WATER CROSSINGS IN HILLY TERRAIN ARE ESPECIALLY DANGEROUS IN
HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND
ALTERNATE ROUTES. IT ONLY TAKES A FEW INCHES OF SWIFTLY FLOWING WATER
TO CARRY VEHICLES AWAY.
&&
LAT...LON 3416 9578 3450 9579 3451 9568 3460 9568
3460 9552 3468 9551 3468 9506 3485 9506
3486 9500 3494 9499 3501 9445 3450 9447
3450 9504 3424 9504 3424 9514 3416 9515
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 7:59 PM CST | Special Weather Statement | TSA | Choctaw | 31 min |
| Nov 21, 10:09 PM CST | River Flood Warning | TSA | Pushmataha | 57 hr |
| Nov 21, 10:21 PM CST | Flash Flood Warning | TSA | LeFlore, Pushmataha | 6 hr |
| Nov 21, 10:30 PM CST | Areal Flood Advisory | TSA | LeFlore, Sequoyah | 2 hr |
| Nov 22, 4:26 AM CST | Areal Flood Warning | TSA | LeFlore, Pushmataha | 12 hr |
| Nov 22, 7:41 AM CST | River Flood Warning | TSA | LeFlore | 19 hr |
| Nov 22, 5:54 PM CST | Areal Flood Warning | TSA | LeFlore, Pushmataha | 9 hr |
Nearby
Flash Flood Warnings in Oklahoma, 2011Every flash flood warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.