Alert archive / Arkansas / Flash Flood Warnings in 2011
Flash Flood Warning 26, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Apr 27, 2011, 12:43 PM CDT for Benton County, Washington County, Arkansas; Adair County, Delaware County, Oklahoma. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 27, 2011, 12:43 PM CDT (17:43 UTC)
- Expired
- Apr 27, 2011, 4:19 PM CDT
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties Benton County, AR, Washington County, AR, Adair County, OK, Delaware County, OK
The radar
The Western Arkansas radar (KSRX), 107 km from the middle of the area, began a volume at 17:43 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 5.7 hours before the alert went out and 80 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
- 1 J/kg
- Mixed-layer CIN
- -327 J/kg
- Mixed-layer LCL
- 497 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
196
WGUS54 KTSA 271743
FFWTSA
ARC007-143-OKC001-041-272130-
/O.NEW.KTSA.FF.W.0026.110427T1743Z-110427T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1243 PM CDT WED APR 27 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN ADAIR COUNTY IN NORTHEAST OKLAHOMA...
NORTHERN WASHINGTON COUNTY IN NORTHWEST ARKANSAS...
SOUTHEASTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA...
SOUTHERN BENTON COUNTY IN NORTHWEST ARKANSAS...
* UNTIL 430 PM CDT
* AT 1239 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AREAS OF LIGHT TO MODERATE RAIN ACROSS THE WARNED AREA. TWO TO THREE
INCHES OF RAIN HAS FALLEN SINCE 10 AM...AND 1 TO 2 INCHES BETWEEN
NOON TO 1 PM. THIS AMOUNT OF RAIN MAY RESULT IN FLASH
FLOODING...ESPECIALLY LOW LYING AREAS AND LOW WATER CROSSINGS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT COULD EXPERIENCE FLOODING INCLUDE...
BENTONVILLE...ROGERS...SILOAM SPRINGS...SPRINGDALE...CAVE
SPRINGS...CINCINNATI...COLCORD...DECATUR...GENTRY...HIGHFILL...
LOWELL...SPRINGTOWN...TONTITOWN...WAR EAGLE...WATTS AND WEST SILOAM
SPRINGS.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TULSA.
&&
LAT...LON 3623 9387 3623 9388 3609 9394 3601 9480
3639 9478 3639 9386 3624 9387
$$2 follow-up statements
878
WGUS74 KTSA 271852
FFSTSA
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
152 PM CDT WED APR 27 2011
ARC007-143-OKC001-041-272130-
/O.CON.KTSA.FF.W.0026.000000T0000Z-110427T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AR-BENTON AR-DELAWARE OK-ADAIR OK-
152 PM CDT WED APR 27 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHERN BENTON AND
NORTHERN WASHINGTON COUNTIES IN NORTHWEST ARKANSAS...AND NORTHERN
ADAIR AND SOUTHEASTERN DELAWARE COUNTIES IN NORTHEAST OKLAHOMA UNTIL
430 PM CDT...
AT 145 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
AREAS OF LIGHT RAIN WERE ENDING ACROSS THE WARNED AREA. ALTHOUGH ANY
ADDITIONAL RAINFALL AMOUNTS WILL REMAIN LIGHT...RADAR ESTIMATES OF 2
TO 3 INCHES OF RAIN HAS ALREADY FALLEN SINCE 11 AM. THIS AMOUNT OF
RAIN MAY RESULT IN FLASH FLOODING...ESPECIALLY LOW LYING AREAS AND
LOW WATER CROSSINGS.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
BENTONVILLE...ROGERS...SILOAM SPRINGS...SPRINGDALE...CAVE SPRINGS...
CINCINNATI...COLCORD...DECATUR...GENTRY...HIGHFILL...LOWELL...
SPRINGTOWN...TONTITOWN...WAR EAGLE...WATTS AND WEST SILOAM SPRINGS.
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.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY.
TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TULSA.
&&
LAT...LON 3623 9387 3623 9388 3609 9394 3601 9480
3639 9478 3639 9386 3624 9387
$$777
WGUS74 KTSA 272119
FFSTSA
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
419 PM CDT WED APR 27 2011
ARC007-143-OKC001-041-272130-
/O.CAN.KTSA.FF.W.0026.000000T0000Z-110427T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON AR-BENTON AR-DELAWARE OK-ADAIR OK-
419 PM CDT WED APR 27 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHERN BENTON AND
NORTHERN WASHINGTON COUNTIES IN NORTHWEST ARKANSAS...AND NORTHERN
ADAIR AND SOUTHEASTERN DELAWARE COUNTIES IN NORTHEAST OKLAHOMA IS
CANCELLED...
HEAVY RAIN HAS ENDED OVER THE WARNED AREA AND DIMINISHED THE CHANCE
OF FLASH FLOODING.
HOWEVER...AN AREAL FLOOD WARNING REMAINS IN EFFECT FOR EASTERN
OKLAHOMA AND NORTHWEST ARKANSAS UNTIL MIDNIGHT. NOT ALL STREAMS AND
CREEKS ARE BACK IN THIER BANKS YET. SOME RURAL ROADS AND LOW WATER
CROSSINGS MAY STILL BE FLOODED. PERSONS SHOULD REMAIN CAUTIOUS
THROUGH WEDNESDAY.
LAT...LON 3623 9387 3623 9388 3609 9394 3601 9480
3639 9478 3639 9386 3624 9387
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:16 PM CDT | Special Weather Statement | TSA | Carroll | 14 min |
| Apr 26, 11:51 PM CDT | Areal Flood Warning | TSA | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 12 hr |
| Apr 27, 7:52 AM CDT | Special Weather Statement | TSA | Crawford | 23 min |
| Apr 27, 8:11 AM CDT | Special Weather Statement | TSA | Crawford | 34 min |
| Apr 27, 8:17 AM CDT | Special Weather Statement | TSA | Washington | 28 min |
| Apr 27, 8:24 AM CDT | Severe Thunderstorm Warning | TSA | Crawford, Washington | 28 min |
| Apr 27, 8:48 AM CDT | Special Weather Statement | TSA | Madison | 42 min |
| Apr 27, 8:55 AM CDT | Special Weather Statement | TSA | Franklin | 35 min |
| Apr 27, 9:24 AM CDT | Special Weather Statement | TSA | Carroll | 51 min |
| Apr 27, 12:00 PM CDT | Areal Flood Warning | TSA | Benton, Carroll, Crawford, Franklin, Madison, Sebastian and 1 more | 48 hr |
| Apr 26, 7:12 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 33 min |
| Apr 26, 7:24 PM CDT | Special Weather Statement | TSA | Choctaw | 51 min |
| Apr 27, 7:39 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Muskogee | 22 min |
Nearby
Flash Flood Warnings in Arkansas, 2011Flash 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.