Alert archive / Arkansas / Flash Flood Warnings in 2011

Flash Flood Warning 64, NWS Memphis, TN

April 25, 20117 counties in Arkansas; Tunica County, Mississippi

NWS Memphis, TN issued this flash flood warning at Apr 25, 2011, 9:33 PM CDT for 7 counties in Arkansas; Tunica County, Mississippi. 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 25, 2011, 9:33 PM CDT (02:33 UTC)
Expired: Apr 26, 2011, 12:30 AM CDT
In force: 3 hr
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Flood severity: None

Counties Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Lee County, AR, Poinsett County, AR, St. Francis County, AR, Tunica County, MS

The radar

The Memphis radar (KNQA), 95 km from the middle of the area, began a volume at 02:36 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, 2.6 hours before the alert went out and 98 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1507 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 914 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 388 m²/s²
0-3 km storm-relative helicity: 511 m²/s²
Significant tornado parameter: 4.0
Supercell composite: 19.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

948 
WGUS54 KMEG 260233
FFWMEG
ARC031-035-037-055-077-111-123-MSC143-260530-
/O.NEW.KMEG.FF.W.0064.110426T0233Z-110426T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
933 PM CDT MON APR 25 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAIGHEAD COUNTY IN EASTERN ARKANSAS...
  NORTHWESTERN CRITTENDEN COUNTY IN EASTERN ARKANSAS...
  CROSS COUNTY IN EASTERN ARKANSAS...
  EXTREME SOUTHWESTERN GREENE COUNTY IN EASTERN ARKANSAS...
  LEE COUNTY IN EASTERN ARKANSAS...
  POINSETT COUNTY IN EASTERN ARKANSAS...
  ST. FRANCIS COUNTY IN EASTERN ARKANSAS...
  WEST CENTRAL TUNICA COUNTY IN NORTHWEST MISSISSIPPI...

* UNTIL 1230 AM CDT

* AT 933 PM CDT...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST HOUR. SHOWERS AND THUNDERSTORMS 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 BAY...
  BONO...BROOKLAND...CARAWAY...EARLE...FORREST CITY...HARRISBURG...
  JONESBORO...LAKE CITY...MADISON...MARIANNA...MARKED TREE...MONETTE
  AND PALESTINE.

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 3501 9115 3501 9105 3588 9104 3588 9088
      3598 9083 3599 9029 3586 9028 3466 9053
      3467 9106 3473 9106 3474 9111 3487 9110
      3491 9115

$$


RRH

1 follow-up statement

469 
WGUS74 KMEG 260527
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1227 AM CDT TUE APR 26 2011

ARC031-035-037-055-077-111-123-MSC143-260537-
/O.EXP.KMEG.FF.W.0064.000000T0000Z-110426T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CROSS AR-CRAIGHEAD AR-LEE AR-ST. FRANCIS AR-CRITTENDEN AR-POINSETT AR-
GREENE AR-TUNICA MS-
1227 AM CDT TUE APR 26 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1230 AM CDT FOR WEST
CENTRAL TUNICA...EXTREME SOUTHEASTERN GREENE...POINSETT...
NORTHWESTERN CRITTENDEN...ST. FRANCIS...LEE...CRAIGHEAD AND 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 3501 9115 3501 9105 3588 9104 3588 9088
      3598 9083 3599 9029 3586 9028 3466 9053
      3467 9106 3473 9106 3474 9111 3487 9110
      3491 9115

$$


RRH

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 25, 7:44 PM CDT	Flash Flood Warning	MEG	Clay, Greene	3 hr
Apr 25, 8:28 PM CDT	Tornado Warning	MEG	Clay	35 min
Apr 25, 8:39 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, Phillips, St. Francis	66 min
Apr 25, 9:00 PM CDT	Tornado Warning	MEG	Cross, Poinsett	45 min
Apr 25, 9:15 PM CDT	Flash Flood Warning	MEG	Clay	3 hr
Apr 25, 9:18 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Crittenden, Cross, Poinsett	42 min
Apr 25, 9:35 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Lee, St. Francis	55 min
Apr 25, 9:44 PM CDT	Severe Thunderstorm Warning	MEG	Phillips	61 min
Apr 25, 9:45 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Crittenden, Mississippi, Poinsett	45 min
Apr 25, 10:28 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	47 min
Apr 25, 10:38 PM CDT	Flash Flood Warning	MEG	Mississippi	3 hr
Apr 25, 10:45 PM CDT	Flash Flood Warning	MEG	Clay, Greene	3 hr
Apr 25, 10:47 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	43 min
Apr 26, 12:14 AM CDT	Areal Flood Warning	MEG	Clay, Craighead, Greene, Lawrence, Randolph	12 hr
Apr 26, 1:32 AM CDT	Areal Flood Warning	MEG	Clay, Greene	10 hr
Apr 26, 3:18 AM CDT	Flash Flood Warning	MEG	Phillips	3 hr
Apr 26, 6:32 AM CDT	Severe Thunderstorm Warning	MEG	Lee, Phillips	30 min
Apr 26, 11:39 AM CDT	Areal Flood Warning	MEG	Clay, Craighead, Greene, Lawrence, Randolph	8 hr
Apr 26, 3:08 PM CDT	Special Weather Statement	MEG	Lee, St. Francis	52 min
Apr 26, 3:16 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, St. Francis	44 min
Apr 26, 3:54 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, Mississippi, Poinsett, St. Francis	51 min
Apr 26, 4:00 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Lee, St. Francis	45 min
Apr 26, 4:09 PM CDT	Flash Flood Warning	MEG	Cross, Lee, St. Francis	6 hr
Apr 26, 4:13 PM CDT	Wind Advisory	MEG	Clay, Craighead, Crittenden, Cross, Greene, Lawrence and 6 more	13 hr
Apr 26, 4:35 PM CDT	Tornado Warning	MEG	Cross, Lee, St. Francis	55 min
Apr 26, 4:40 PM CDT	Severe Thunderstorm Warning	MEG	Craighead, Mississippi	50 min
Apr 26, 5:06 PM CDT	Tornado Warning	MEG	Phillips	54 min
Apr 26, 5:26 PM CDT	Flash Flood Warning	MEG	Lee, Phillips	6 hr
Apr 26, 5:27 PM CDT	Tornado Warning	MEG	Crittenden, St. Francis	48 min
Apr 26, 5:34 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Cross, St. Francis	41 min
Apr 26, 5:49 PM CDT	Flash Flood Warning	MEG	Crittenden, Cross, Mississippi, Poinsett, St. Francis	6 hr
Apr 26, 5:52 PM CDT	Tornado Warning	MEG	Lee, Phillips	53 min
Apr 26, 5:53 PM CDT	Tornado Warning	MEG	Crittenden	37 min
Apr 26, 6:02 PM CDT	Tornado Warning	MEG	Lee, Phillips, St. Francis	58 min
Apr 26, 6:09 PM CDT	Tornado Warning	MEG	Crittenden	50 min
Apr 26, 6:15 PM CDT	Tornado Warning	MEG	Phillips	60 min
Apr 26, 6:31 PM CDT	Flash Flood Warning	MEG	Crittenden, Mississippi	6 hr
Apr 26, 6:33 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	42 min
Apr 26, 6:34 PM CDT	Tornado Warning	MEG	Phillips	56 min
Apr 26, 6:52 PM CDT	Severe Thunderstorm Warning	MEG	Crittenden, Lee, St. Francis	38 min
Apr 26, 6:56 PM CDT	Flash Flood Warning	MEG	Crittenden, Lee	6 hr
Apr 25, 8:15 PM CDT	River Flood Warning	MEG	Lowndes, Monroe	7 days
Apr 25, 10:16 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Marshall, Tate, Tunica	59 min
Apr 25, 10:18 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Panola, Quitman, Tallahatchie, Tate, Tunica	57 min
Apr 25, 10:58 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Marshall, Tate, Tippah, Union	62 min
Apr 25, 11:01 PM CDT	Severe Thunderstorm Warning	MEG	Coahoma, Lafayette, Panola, Quitman, Tallahatchie, Union and 1 more	59 min
Apr 25, 11:59 PM CDT	Severe Thunderstorm Warning	MEG	Alcorn, Benton, Itawamba, Lafayette, Lee, Prentiss and 3 more	76 min
Apr 26, 12:01 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Lafayette, Lee, Pontotoc, Union and 1 more	59 min
Apr 26, 12:09 AM CDT	Tornado Warning	MEG	Alcorn, Tippah, Tishomingo	36 min
Apr 26, 12:14 AM CDT	Tornado Warning	MEG	Alcorn, Lee, Prentiss, Tippah, Union	31 min
Apr 26, 12:16 AM CDT	Tornado Warning	MEG	Lafayette, Pontotoc, Union	29 min
Apr 26, 12:24 AM CDT	Tornado Warning	MEG	Calhoun, Lafayette, Pontotoc	36 min
Apr 26, 12:41 AM CDT	Tornado Warning	MEG	Chickasaw, Itawamba, Lee, Monroe, Pontotoc, Union	19 min
Apr 26, 12:58 AM CDT	Severe Thunderstorm Warning	MEG	Calhoun, Chickasaw, Itawamba, Lee, Monroe, Pontotoc and 2 more	64 min
Apr 26, 1:30 PM CDT	River Flood Warning	MEG	Lafayette	43 hr
Apr 26, 5:32 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Marshall	43 min
Apr 26, 6:46 PM CDT	Severe Thunderstorm Warning	MEG	DeSoto, Marshall	59 min

Nearby

Flash Flood Warnings in Arkansas, 2011 Flash Flood Warnings in Mississippi, 2011 Every 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.