Alert archive / Oklahoma / Flash Flood Warnings in 2011
Flash Flood Warning 72, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Nov 21, 2011, 10:21 PM CST for LeFlore County, Pushmataha County, Oklahoma. It was in force for 6 hr. 1 report 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, 10:21 PM CST (04:21 UTC)
- Expired
- Nov 22, 2011, 4:30 AM CST
- In force
- 6 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 04:24 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, 11:06 PM CST | FLOOD | Talihina, OK | SEVERAL ROADS BLOCKED OFF BY LAW ENFORCEMENT |
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, 4.4 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.
219
WGUS54 KTSA 220421
FFWTSA
OKC079-127-221030-
/O.NEW.KTSA.FF.W.0072.111122T0421Z-111122T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1021 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 430 AM CST TUESDAY
* AT 1020 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED HEAVY RAIN ACROSS THE WARNED AREA. 3 TO 6 INCHES OF
RAINFALL HAS ALREADY OCCURRED WITH AN ADDITIONAL 1 TO 3 INCHES
POSSIBLE THROUGH 1 AM. NUMEROUS ROAD CLOSURES AND SEVERAL HIGH
WATER RESCUES HAVE BEEN REPORTED OVER SOUTHERN LEFLORE COUNTY.
* 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
$$1 follow-up statement
797
WGUS74 KTSA 220751
FFSTSA
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
151 AM CST TUE NOV 22 2011
OKC079-127-221030-
/O.CON.KTSA.FF.W.0072.000000T0000Z-111122T1030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LE FLORE OK-PUSHMATAHA OK-
151 AM CST TUE NOV 22 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR PUSHMATAHA AND SOUTHERN
LE FLORE COUNTIES UNTIL 430 AM CST...
AT 151 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT
THE HEAVY RAINFALL HAD ENDED ACROSS THE WARNED AREA. ALTHOUGH LITTLE
TO NO ADDITIONAL RAINFALL IS EXPECTED...UP TO 8 INCHES OF RAIN HAS
ALREADY FALLEN AND FLOODING OF LOW LYING AREAS WILL LIKELY CONTINUE.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ANTLERS...CLAYTON...ALBION...BIG CEDAR...CLAYTON LAKE STATE PARK...
CLOUDY...DUNBAR...HEAVENER...HEAVENER RUNESTONE STATE PARK...HOWE...
KELLOND...KIAMICHI...KOSOMA...LAKE WISTER STATE PARK...MOYERS...
MUSE...NASHOBA...OCTAVIA...OLETA...RATTAN...SNOW...STANLEY...
TALIHINA...TALIMENA STATE PARK...TUSKAHOMA...WHITESBORO AND WISTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD TO
UNKNOWN DEPTHS. IT ONLY TAKES TWO FEET OF RUSHING WATER TO CARRY AWAY
MOST SPORT UTILITY VEHICLES AND PICKUPS. TAKE A DIFFERENT ROUTE TO
REACH YOUR DESTINATION OR WAIT UNTIL THE WATER RECEDES. REMEMBER...
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
&&
LAT...LON 3416 9578 3450 9579 3451 9568 3460 9568
3460 9552 3468 9551 3468 9506 3485 9506
3486 9500 3494 9499 3501 9445 3450 9447
3450 9504 3424 9504 3424 9514 3416 9515
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 21, 6:27 PM CST | Flash Flood Warning | TSA | LeFlore, Pushmataha | 4 hr |
| 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, 10:30 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.