Alert archive / Arkansas / Flash Flood Warnings in 2011
Flash Flood Warning 39, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Apr 11, 2011, 12:34 PM CDT for 4 counties in Arkansas; Lauderdale County, Tipton County, Tennessee. It was in force for 3 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 11, 2011, 12:34 PM CDT (17:34 UTC)
- Expired
- Apr 11, 2011, 3:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crittenden County, AR, Cross County, AR, Mississippi County, AR, Poinsett County, AR, Lauderdale County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 34 km from the middle of the area, began a volume at 17:35 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
Little Rock, AR (KLZK), launched 12:00Z, 5.6 hours before the alert went out and 78 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
- 936 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 647 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 322 m²/s²
- Significant tornado parameter
- 2.0
- Supercell composite
- 6.5
The text
As transmitted, in the capitals the NWS used until 2016.
598
WGUS54 KMEG 111734
FFWMEG
ARC035-037-093-111-TNC097-167-112030-
/O.NEW.KMEG.FF.W.0039.110411T1734Z-110411T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1234 PM CDT MON APR 11 2011
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHERN CRITTENDEN COUNTY IN EASTERN ARKANSAS...
SOUTHEASTERN CROSS COUNTY IN EASTERN ARKANSAS...
MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
SOUTHEASTERN POINSETT COUNTY IN EASTERN ARKANSAS...
WESTERN LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...
SOUTHWESTERN TIPTON COUNTY IN SOUTHWEST TENNESSEE...
* UNTIL 330 PM CDT
* AT 1234 PM CDT...DOPPLER RADAR ESTIMATES 2 TO 4 INCHES OF RAINFALL
HAS OCCURRED OVER THE PAST 2 HOURS. SHOWERS AND THUNDERSTORMS WILL
PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT HOUR.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO EARLE...
KEISER...LEPANTO...LUXORA...MARKED TREE...OSCEOLA...PARKIN...
TYRONZA...WILSON AND FORT PILLOW STATE PARK.
THIS WARNING ALSO INCLUDES AREAS NEAR BRANDYWINE LAKE...CHISHOLM
LAKE...CORONEE LAKE...OPEN LAKE...THE CHUTE AND WAPANOCCA LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
.MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE
USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS
POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING
FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT FLASH FLOODING ONLY...CALL 1 800 4 3 2 0 8 7 5.
&&
LAT...LON 3599 8979 3586 8958 3512 9039 3514 9040
3515 9048 3527 9091
$$
TLSJR1 follow-up statement
166
WGUS74 KMEG 112024
FFSMEG
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
324 PM CDT MON APR 11 2011
ARC035-037-093-111-TNC097-167-112034-
/O.EXP.KMEG.FF.W.0039.000000T0000Z-110411T2030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-MISSISSIPPI AR-CRITTENDEN AR-POINSETT AR-LAUDERDALE TN-
TIPTON TN-
324 PM CDT MON APR 11 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 330 PM CDT FOR SOUTHWESTERN
TIPTON...WESTERN LAUDERDALE...SOUTHEASTERN POINSETT...NORTHERN
CRITTENDEN...MISSISSIPPI AND SOUTHEASTERN CROSS COUNTIES...
THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO
EXPIRE.
.STAY TUNED TO THIS BROADCAST FOR THE LATEST UPDATES AND INFORMATION.
TO REPORT SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.
LAT...LON 3599 8979 3586 8958 3512 9039 3514 9040
3515 9048 3527 9091
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 4:43 AM CDT | Wind Advisory | MEG | Crittenden, Lee, Phillips, St. Francis | 12 hr |
| Apr 11, 6:46 AM CDT | Special Weather Statement | MEG | Poinsett | 29 min |
| Apr 11, 7:00 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Crittenden, Cross, Greene, Mississippi, Poinsett | 45 min |
| Apr 11, 7:42 AM CDT | Severe Thunderstorm Warning | MEG | Craighead, Mississippi, Poinsett | 48 min |
| Apr 11, 11:45 AM CDT | Severe Thunderstorm Warning | MEG | Lee, Phillips, St. Francis | 60 min |
| Apr 11, 8:29 AM CDT | Severe Thunderstorm Warning | MEG | Crockett, Dyer, Gibson, Haywood, Lake, Lauderdale and 2 more | 36 min |
| Apr 11, 12:27 PM CDT | River Flood Advisory | MEG | Dyer, Lake | 3 days |
| Apr 11, 1:54 PM CDT | Flash Flood Warning | MEG | Shelby | 80 min |
| Apr 11, 2:17 PM CDT | Flash Flood Warning | MEG | Dyer, Lauderdale, Obion | 117 min |
| Apr 11, 2:43 PM CDT | Special Weather Statement | MEG | Crockett, Gibson, Madison | 32 min |
| Apr 11, 3:45 PM CDT | Flash Flood Warning | MEG | Decatur | 2 hr |
Nearby
Flash Flood Warnings in Arkansas, 2011Flash Flood Warnings in Tennessee, 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.