Alert archive / Arkansas / Flash Flood Warnings in 2011

Flash Flood Warning 16, NWS Memphis, TN

February 24, 2011Craighead County, Mississippi County, Poinsett County, Arkansas

NWS Memphis, TN issued this flash flood warning at Feb 24, 2011, 5:04 PM CST for Craighead County, Mississippi County, Poinsett County, Arkansas. 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
Feb 24, 2011, 5:04 PM CST (23:04 UTC)
Expired
Feb 24, 2011, 9:03 PM CST
In force
4 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Craighead County, AR, Mississippi County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 56 km from the middle of the area, began a volume at 23:04 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, 11.1 hours before the alert went out and 97 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-pSkew-T log-p diagram, Little Rock, AR at 12:00Z on 2011-02-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Little Rock, AR at 12:00Z on 2011-02-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
10 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

493 
WGUS54 KMEG 242304
FFWMEG
ARC031-093-111-250200-
/O.NEW.KMEG.FF.W.0016.110224T2304Z-110225T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
504 PM CST THU FEB 24 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CRAIGHEAD COUNTY IN EASTERN ARKANSAS...
  MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  POINSETT COUNTY IN EASTERN ARKANSAS...

* UNTIL 800 PM CST

* AT 458 PM CST...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST 6 HOURS. 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 CROWLEYS 
RIDGE...BAY...CARAWAY...HARRISBURG...JONESBORO...KEISER...LAKE 
CITY...LEPANTO...MANILA...MARKED TREE...MONETTE...OSCEOLA 
...TRUMANN...TYRONZA AND WILSON. THIS WARNING ALSO INCLUDES AREAS 
NEAR BIG LAKE.

FLASH FLOODING IN THE STREETS OF JONESBORO WILL BE A PROBLEM THIS 
EVENING ALONG WITH FLOODING OF SMALL JONESBORO STREAMS. CROWLEYS 
RIDGE WILL HAVE SIGNIFICANT FLOODING OF LOW WATER CROSSINGS.

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 3589 9104 3589 8979 3573 8997 3564 8993
      3560 9000 3551 9007 3544 9017 3544 9061
      3545 9061 3544 9104

$$
2 follow-up statements
007 
WGUS54 KMEG 250135
FFWMEG
ARC031-093-111-250400-
/O.EXT.KMEG.FF.W.0016.000000T0000Z-110225T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
735 PM CST THU FEB 24 2011

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CRAIGHEAD COUNTY IN EASTERN ARKANSAS...
  MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  POINSETT COUNTY IN EASTERN ARKANSAS...

* UNTIL 1000 PM CST

* AT 734 PM CST...DOPPLER RADAR ESTIMATES 1 TO 3 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST 6 HOURS. SHOWERS AND THUNDERSTORMS WILL 
  PRODUCE AN ADDITIONAL 1 TO 3 INCHES OF RAIN OVER THE NEXT 2 HOURS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BAY...
  CARAWAY...HARRISBURG...JONESBORO...KEISER...LAKE CITY...LEPANTO...
  MANILA...MARKED TREE...MONETTE...OSCEOLA...TRUMANN...TYRONZA AND
  WILSON.

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 3589 9104 3589 8979 3573 8997 3564 8993
      3560 9000 3551 9007 3544 9017 3544 9061
      3545 9061 3544 9104

$$
223 
WGUS74 KMEG 250303
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
903 PM CST THU FEB 24 2011

ARC031-093-111-250314-
/O.CAN.KMEG.FF.W.0016.000000T0000Z-110225T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CRAIGHEAD AR-MISSISSIPPI AR-POINSETT AR-
903 PM CST THU FEB 24 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR POINSETT...
MISSISSIPPI AND CRAIGHEAD COUNTIES...

THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED ACROSS
THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN CANCELLED.

.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 3589 9104 3589 8979 3573 8997 3564 8993
      3560 9000 3551 9007 3544 9017 3544 9061
      3545 9061 3544 9104

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 24, 2:48 AM CSTFlash Flood WarningMEGClay, Greene, Lawrence, Randolph3 hr
Feb 24, 5:45 AM CSTFlash Flood WarningMEGClay, Greene, Lawrence, Randolph3 hr
Feb 24, 8:47 AM CSTFlash Flood WarningMEGClay, Greene, Lawrence, Randolph3 hr
Feb 24, 11:28 AM CSTRiver Flood AdvisoryMEGMississippi35 hr
Feb 24, 11:45 AM CSTFlash Flood WarningMEGClay, Greene, Lawrence, Randolph3 hr
Feb 24, 1:08 PM CSTRiver Flood WarningMEGMississippi, Poinsett54 hr
Feb 24, 2:44 PM CSTFlash Flood WarningMEGClay, Craighead, Greene, Lawrence, Mississippi, Randolph6 hr
Feb 24, 4:59 PM CSTTornado WarningMEGClay, Greene46 min
Feb 24, 5:11 PM CSTTornado WarningMEGClay49 min
Feb 24, 5:17 PM CSTFlash Flood WarningMEGMississippi5 hr
Feb 24, 5:40 PM CSTSevere Thunderstorm WarningMEGClay, Craighead, Cross, Greene, Lawrence, Poinsett50 min
Feb 24, 5:43 PM CSTSevere Thunderstorm WarningMEGCrittenden, Cross, Lee, Poinsett, St. Francis47 min
Feb 24, 5:47 PM CSTFlash Flood WarningMEGCrittenden, Cross, Lee, St. Francis3 hr

Nearby

Flash Flood Warnings in Arkansas, 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.