Alert archive / Arkansas / Flash Flood Warnings in 2012
Flash Flood Warning 20, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at May 7, 2012, 4:57 AM CDT for 4 counties in Arkansas; Dunklin County, Missouri. 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
- May 7, 2012, 4:57 AM CDT (09:57 UTC)
- Expired
- May 7, 2012, 8:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clay County, AR, Craighead County, AR, Greene County, AR, Randolph County, AR, Dunklin County, MO
The radar
The Memphis radar (KNQA), 104 km from the middle of the area, began a volume at 09:58 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 00:00Z, 10.0 hours before the alert went out and 156 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
- 1694 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1441 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
544
WGUS54 KMEG 070957
FFWMEG
ARC021-031-055-121-MOC069-071300-
/O.NEW.KMEG.FF.W.0020.120507T0957Z-120507T1300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
457 AM CDT MON MAY 7 2012
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CLAY COUNTY IN EASTERN ARKANSAS...
EXTREME NORTHEASTERN CRAIGHEAD COUNTY IN EASTERN ARKANSAS...
EASTERN GREENE COUNTY IN EASTERN ARKANSAS...
NORTHEASTERN RANDOLPH COUNTY IN EASTERN ARKANSAS...
SOUTHWESTERN DUNKLIN COUNTY IN SOUTHEAST MISSOURI...
* UNTIL 800 AM CDT
* AT 456 AM CDT...DOPPLER RADAR ESTIMATES 3 TO 5 INCHES OF RAINFALL
HAS OCCURRED OVER THE PAST 6 HOURS. ADDITIONAL SHOWERS AND
THUNDERSTORMS WILL MOVE INTO THE AREA FROM CENTRAL ARKANSAS AND
WILL PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT 3
HOURS.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CORNING...
MARMADUKE...RECTOR...SENATH...BUCODA...BUCK DONIC...HOLLYWOOD AND
PAULDING.
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 3613 9011 3600 9022 3600 9029 3594 9029
3630 9078 3649 9086 3650 9031
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:30 PM CDT | Special Weather Statement | MEG | Clay | 30 min |
| May 6, 7:33 PM CDT | Special Weather Statement | MEG | Greene | 27 min |
| May 6, 7:44 PM CDT | Special Weather Statement | MEG | Mississippi | 31 min |
| May 6, 7:58 PM CDT | Severe Thunderstorm Warning | MEG | Mississippi | 47 min |
| May 6, 8:24 PM CDT | Special Weather Statement | MEG | Clay | 36 min |
| May 6, 8:44 PM CDT | Special Weather Statement | MEG | Mississippi | 31 min |
| May 6, 9:21 PM CDT | Special Weather Statement | MEG | Mississippi | 39 min |
| May 6, 9:49 PM CDT | Flash Flood Warning | MEG | Mississippi | 3 hr |
| May 7, 1:07 AM CDT | Special Weather Statement | MEG | Mississippi | 23 min |
| May 7, 1:11 AM CDT | Special Weather Statement | MEG | Clay | 34 min |
| May 7, 1:38 AM CDT | Special Weather Statement | MEG | Cross | 52 min |
| May 7, 1:41 AM CDT | Flash Flood Warning | MEG | Clay, Randolph | 3 hr |
| May 7, 2:40 AM CDT | Flash Flood Warning | MEG | Mississippi | 3 hr |
| May 7, 5:39 AM CDT | Flash Flood Warning | MEG | Mississippi | 3 hr |
| May 7, 8:05 AM CDT | Flash Flood Warning | MEG | Clay, Craighead, Greene, Randolph | 115 min |
Nearby
Flash Flood Warnings in Arkansas, 2012Flash Flood Warnings in Missouri, 2012Every flash flood warning in 2012
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.