Alert archive / Tennessee / Flash Flood Warnings in 2006

Flash Flood Warning 21, NWS Memphis, TN

May 30, 2006Shelby County, Tennessee

NWS Memphis, TN issued this flash flood warning at May 30, 2006, 6:06 PM CDT for Shelby County, Tennessee. It was in force for 84 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 30, 2006, 6:06 PM CDT (23:06 UTC)
Expired
May 30, 2006, 7:30 PM CDT
In force
84 min
Issued by
NWS Memphis, TN
Area
Counties, with a storm outline in the text

County Shelby County, TN

The radar

The Memphis radar (KNQA), 31 km from the middle of the area, began a volume at 23:09 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.

What was reported inside it

TimeReportWhereRemark
May 30, 6:35 PM CDTFLASH FLOODSouthwest Memphis, TNUP TO A FOOT OF WATER IS COVERING THE ROAD AND A RAILROAD TRACK AT THE INTERSECTION OF E MALLORY AND RIVERPORT ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 11.1 hours before the alert went out and 30 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 2006-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 502 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 2006-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
502 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KMEG 302309
FFWMEG
TNC157-310030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
606 PM CDT TUE MAY 30 2006

THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWEST SHELBY COUNTY IN SOUTHWEST TENNESSEE

* UNTIL 730 PM CDT

* AT 605 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN OVER THE WARNED AREA. OVER THE PAST 2 HOURS DOPPLER
  RADAR ESTIMATES THAT 2 TO 4 INCHES OF RAINFALL HAS FALLEN ACROSS   
  THE WARNED AREA. A NEARLY STATIONARY THUNDERSTORM WAS LOCATED 
  BETWEEN SOUTHWEST MEMPHIS AND MIDTOWN MEMPHIS. THE THUNDERSTORM 
  WAS PRODUCING VERY HEAVY RAIN.   

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO            
  SOUTHWEST MEMPHIS AND MIDTOWN MEMPHIS.

.DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. TURN AROUND, DONT DROWN

.STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION. TO REPORT FLOODING ONLY...CALL 1 800 4 3 2 0
8 7 5.

LAT...LON 3514 8994 3500 8996 3501 9020 3516 9007

$$
2 follow-up statements
000 
WGUS74 KMEG 302352
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
648 PM CDT TUE MAY 30 2006

TNC157-310030-
SHELBY TN-
648 PM CDT TUE MAY 30 2006

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR 
SOUTHWEST SHELBY COUNTY...

AT 647 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY
HEAVY RAIN OVER THE WARNED AREA. OVER THE PAST 2 HOURS DOPPLER RADAR
ESTIMATES THAT 2 TO 4 INCHES OF RAINFALL HAS FALLEN ACROSS THE WARNED
AREA. A NEARLY STATIONARY THUNDERSTORM REMAINED NEAR SOUTHWEST 
MEMPHIS PRODUCING VERY HEAVY RAINFALL. THE STORM WAS BEGINNING TO 
SHOW SIGNS OF DECREASING IN INTENSITY.

A SPOTTER REPORTED ONE FOOT OF WATER OVER THE ROAD AT THE 
INTERSECTION OF RIVERPORT ROAD AND EAST MALLORY AVENUE. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTHWEST 
MEMPHIS.

.DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. TURN AROUND, DONT DROWN.

.STAY TUNED TO THIS NATIONAL WEATHER SERVICE BROADCAST FOR THE LATEST
UPDATES AND INFORMATION. TO REPORT FLOODING ONLY...CALL 1 800 4 3 2 0
8 7 5.

LAT...LON 3514 8994 3500 8996 3501 9020 3516 9007

$$
000 
WGUS74 KMEG 310034
FFSMEG

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
735 PM CDT TUE MAY 30 2006

TNC157-310045-
SHELBY TN-
735 PM CDT TUE MAY 30 2006

...THE FLASH FLOOD WARNING FOR SHELBY COUNTY EXPIRED AT 730 PM CDT...

THE HEAVY RAINFALL WHICH PROMPTED THE WARNING HAS DIMINISHED OR
EXITED THE WARNED AREA. THUS THE FLASH FLOOD WARNING HAS BEEN ALLOWED
TO EXPIRE.

LAT...LON 3514 8994 3500 8996 3501 9020 3516 9007

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 4:37 PM CDTSevere Thunderstorm WarningMEGGibson23 min
May 30, 5:23 PM CDTFlash Flood WarningMEGGibson2 hr

Nearby

Flash Flood Warnings in Tennessee, 2006Every flash flood warning in 2006

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.