Alert archive / Arkansas / Flash Flood Warnings in 2012

Flash Flood Warning 3, NWS Memphis, TN

March 16, 2012Clay County, Arkansas; Dunklin County, Missouri

NWS Memphis, TN issued this flash flood warning at Mar 16, 2012, 2:14 AM CDT for Clay County, 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
Mar 16, 2012, 2:14 AM CDT (07:14 UTC)
Expired
Mar 16, 2012, 5:15 AM CDT
In force
3 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Clay County, AR, Dunklin County, MO

The radar

The Memphis radar (KNQA), 134 km from the middle of the area, began a volume at 07:16 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, 7.2 hours before the alert went out and 187 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 00:00Z on 2012-03-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1331 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 00:00Z on 2012-03-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 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
1331 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1576 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

399 
WGUS54 KMEG 160714
FFWMEG
ARC021-MOC069-161015-
/O.NEW.KMEG.FF.W.0003.120316T0714Z-120316T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
214 AM CDT FRI MAR 16 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN CLAY COUNTY IN EASTERN ARKANSAS...
  NORTHEASTERN DUNKLIN COUNTY IN SOUTHEAST MISSOURI...

* UNTIL 515 AM CDT

* AT 213 AM CDT...DOPPLER RADAR ESTIMATES 1 TO 3 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 2 HOURS.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CORNING...
  DATTO...MCDOUGAL...PIGGOTT...POLLARD...ST. FRANCIS...SUCCESS...
  CAMPBELL...CLARKTON...GLENNONVILLE...HOLCOMB...MALDEN...TOWNLEY AND
  BRIAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

.TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MEMPHIS.

&&

LAT...LON 3662 8996 3645 8995 3636 8996 3633 8999
      3639 9075 3641 9075 3641 9077 3643 9076
      3643 9078 3651 9078 3650 9023 3654 9022
      3655 9019 3659 9019 3664 9014

$$

BORGHOFF
2 follow-up statements
320 
WGUS74 KMEG 160845
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
345 AM CDT FRI MAR 16 2012

ARC021-MOC069-161015-
/O.CON.KMEG.FF.W.0003.000000T0000Z-120316T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY AR-DUNKLIN MO-
345 AM CDT FRI MAR 16 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
NORTHEASTERN DUNKLIN AND NORTHERN CLAY COUNTIES...

AT 344 AM CDT...DOPPLER RADAR ESTIMATES 3 TO 4 INCHES OF RAINFALL HAS
OCCURRED OVER THE PAST 3 HOURS IN NORTHERN DUNKLIN COUNTY. 1 TO 2 
INCHES HAVE OCCURRED OVER THE REST OF THE WARNED AREA. 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 CORNING...
DATTO...MCDOUGAL...PIGGOTT...POLLARD...ST. FRANCIS...SUCCESS...
CAMPBELL...CLARKTON...GLENNONVILLE...HOLCOMB...MALDEN...TOWNLEY...
BRIAN...VALLEY RIDGE...WILHELMINA...PROVIDENCE...MC GUIRES...BAIRD...
FRISBEE AND CHALK BLUFF NATURAL AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

.BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

.TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
MEMPHIS.

&&

LAT...LON 3662 8996 3645 8995 3636 8996 3633 8999
      3639 9075 3641 9075 3641 9077 3643 9076
      3643 9078 3651 9078 3650 9023 3654 9022
      3655 9019 3659 9019 3664 9014

$$

BORGHOFF
120 
WGUS74 KMEG 161018
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
518 AM CDT FRI MAR 16 2012

ARC021-MOC069-161028-
/O.EXP.KMEG.FF.W.0003.000000T0000Z-120316T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLAY AR-DUNKLIN MO-
518 AM CDT FRI MAR 16 2012

...THE FLASH FLOOD WARNING HAS EXPIRED FOR NORTHEASTERN DUNKLIN AND
NORTHERN CLAY COUNTIES...

THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS BEGUN TO 
DIMINISH 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 3662 8996 3645 8995 3636 8996 3633 8999
      3639 9075 3641 9075 3641 9077 3643 9076
      3643 9078 3651 9078 3650 9023 3654 9022
      3655 9019 3659 9019 3664 9014

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 1:51 AM CDTSpecial Weather StatementMEGClay39 min
Mar 16, 8:53 AM CDTFlash Flood WarningMEGCrittenden2 hr
Mar 16, 11:00 AM CDTFlash Flood WarningMEGCrittenden2 hr
Mar 16, 5:59 PM CDTRiver Flood WarningMEGClay, Greene40 hr

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.