Alert archive / Tennessee / Flash Flood Warnings in 2012

Flash Flood Warning 16, NWS Memphis, TN

May 6, 2012Lauderdale County, Tennessee; Mississippi County, Arkansas

NWS Memphis, TN issued this flash flood warning at May 6, 2012, 9:49 PM CDT for Lauderdale County, Tennessee; Mississippi County, Arkansas. 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 6, 2012, 9:49 PM CDT (02:49 UTC)
Expired
May 7, 2012, 12:45 AM CDT
In force
3 hr
Issued by
NWS Memphis, TN
Area
Storm-based polygon
Flood severity
None

Counties Mississippi County, AR, Lauderdale County, TN

The radar

The Memphis radar (KNQA), 38 km from the middle of the area, began a volume at 02:50 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, 2.8 hours before the alert went out and 95 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 2012-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1694 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 2012-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
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

Open this sounding in Storm Lab

The text

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

082 
WGUS54 KMEG 070249
FFWMEG
ARC093-TNC097-070545-
/O.NEW.KMEG.FF.W.0016.120507T0249Z-120507T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
949 PM CDT SUN MAY 6 2012

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MISSISSIPPI COUNTY IN EASTERN ARKANSAS...
  WESTERN LAUDERDALE COUNTY IN SOUTHWEST TENNESSEE...

* UNTIL 1245 AM CDT

* AT 949 PM CDT...DOPPLER RADAR ESTIMATES 3 TO 5 INCHES OF RAINFALL
  HAS OCCURRED OVER THE PAST 3 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
  BLYTHEVILLE...GOSNELL...KEISER...LUXORA...MANILA...OSCEOLA...WILSON
  AND FORT PILLOW STATE PARK.

 THIS WARNING ALSO INCLUDES AREAS NEAR BIG LAKE AND OPEN LAKE.

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.

.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 3587 8970 3566 8965 3565 8976 3559 8987
      3555 8998 3555 9004 3552 9005 3547 9013
      3544 9029 3579 9028 3592 9014 3598 8993

$$
2 follow-up statements
124 
WGUS74 KMEG 070344
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1044 PM CDT SUN MAY 6 2012

ARC093-TNC097-070545-
/O.CON.KMEG.FF.W.0016.000000T0000Z-120507T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MISSISSIPPI AR-LAUDERDALE TN-
1044 PM CDT SUN MAY 6 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
WESTERN LAUDERDALE AND MISSISSIPPI COUNTIES...

AT 1043 PM CDT...DOPPLER RADAR ESTIMATES 3 TO 5 INCHES OF RAINFALL 
HAS OCCURRED OVER THE PAST 6 HOURS. RAIN IS DIMINISHING AND ENDING 
ACROSS THE WARNED AREA. HOWEVER...RUNOFF FROM THE EARLIER HEAVY 
RAINFALL STILL POSES THE THREAT OF FLASH FLOODING.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BLYTHEVILLE...GOSNELL...KEISER...LUXORA...MANILA...OSCEOLA...WILSON
AND FORT PILLOW STATE PARK.

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.

.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 SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3587 8970 3566 8965 3565 8976 3559 8987
      3555 8998 3555 9004 3552 9005 3547 9013
      3544 9029 3579 9028 3592 9014 3598 8993

$$
118 
WGUS74 KMEG 070435
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
1135 PM CDT SUN MAY 6 2012

ARC093-TNC097-070545-
/O.CON.KMEG.FF.W.0016.000000T0000Z-120507T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MISSISSIPPI AR-LAUDERDALE TN-
1135 PM CDT SUN MAY 6 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
WESTERN LAUDERDALE AND MISSISSIPPI COUNTIES...

AT 1133 PM CDT...DOPPLER RADAR ESTIMATES 3 TO 5 INCHES OF RAINFALL 
HAS OCCURRED OVER THE PAST 6 HOURS. SHOWERS AND THUNDERSTORMS HAVE 
REDEVELOPED IN A FEW LOCATIONS IN THE WARNED AREA THAT WILL PRODUCE 
AN ADDITIONAL 1 INCH OF RAIN OVER THE NEXT HOUR. RUNOFF FROM THE 
EARLIER HEAVY RAINFALL WILL CONTINUE TO POSE THE RISK OF FLASH 
FLOODING. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BLYTHEVILLE...GOSNELL...KEISER...LUXORA...MANILA...OSCEOLA...WILSON
AND FORT PILLOW STATE PARK.

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.

.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 SEVERE WEATHER ONLY...CALL 1 800 4 3 2 0 8 7 5.

&&

LAT...LON 3587 8970 3566 8965 3565 8976 3559 8987
      3555 8998 3555 9004 3552 9005 3547 9013
      3544 9029 3579 9028 3592 9014 3598 8993

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 7:58 PM CDTSevere Thunderstorm WarningMEGLauderdale47 min
May 6, 9:40 PM CDTSpecial Weather StatementMEGTipton35 min
May 6, 10:35 PM CDTSpecial Weather StatementMEGShelby25 min
May 6, 11:01 PM CDTSpecial Weather StatementMEGFayette29 min
May 6, 11:28 PM CDTSpecial Weather StatementMEGChester, Fayette, Hardeman62 min
May 7, 1:04 AM CDTFlash Flood WarningMEGChester, Hardeman, McNairy3 hr
May 7, 1:52 AM CDTSpecial Weather StatementMEGLauderdale, Tipton38 min
May 7, 2:40 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 7, 5:39 AM CDTFlash Flood WarningMEGLauderdale, Tipton3 hr
May 6, 7:30 PM CDTSpecial Weather StatementMEGClay30 min
May 6, 7:33 PM CDTSpecial Weather StatementMEGGreene27 min
May 6, 7:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 8:24 PM CDTSpecial Weather StatementMEGClay36 min
May 6, 8:44 PM CDTSpecial Weather StatementMEGMississippi31 min
May 6, 9:21 PM CDTSpecial Weather StatementMEGMississippi39 min
May 7, 1:07 AM CDTSpecial Weather StatementMEGMississippi23 min
May 7, 1:11 AM CDTSpecial Weather StatementMEGClay34 min
May 7, 1:38 AM CDTSpecial Weather StatementMEGCross52 min
May 7, 1:41 AM CDTFlash Flood WarningMEGClay, Randolph3 hr
May 7, 4:57 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph3 hr
May 7, 8:05 AM CDTFlash Flood WarningMEGClay, Craighead, Greene, Randolph115 min

Nearby

Flash Flood Warnings in Tennessee, 2012Flash Flood Warnings in Arkansas, 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.