Alert archive / Tennessee / Flash Flood Warnings in 2009

Flash Flood Warning 39, NWS Nashville, TN

June 2, 2009Lawrence County, Tennessee

NWS Nashville, TN issued this flash flood warning at Jun 2, 2009, 2:55 PM CDT for Lawrence County, Tennessee. 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
Jun 2, 2009, 2:55 PM CDT (19:55 UTC)
Expired
Jun 2, 2009, 6:00 PM CDT
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

County Lawrence County, TN

The radar

The Northeast Alabama radar (KHTX), 117 km from the middle of the area, began a volume at 19:56 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

Nashville Metro, TN (KBNA), launched 12:00Z, 7.9 hours before the alert went out and 127 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, Nashville Metro, TN at 12:00Z on 2009-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1479 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, Nashville Metro, TN at 12:00Z on 2009-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 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
1479 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1358 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
30 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.

000 
WGUS54 KOHX 021955
FFWOHX
TNC099-022300-
/O.NEW.KOHX.FF.W.0039.090602T1955Z-090602T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
255 PM CDT TUE JUN 2 2009

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  LAWRENCE COUNTY IN MIDDLE TENNESSEE...
  THIS INCLUDES THE CITY OF LAWRENCEBURG...

* UNTIL 600 PM CDT

* AT 252 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  HEAVY RAINFALL FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE THE LAWRENCEBURG AREA...ETHRIDGE
  ...LEOMA...CENTERPOINT.

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.

&&

LAT...LON 3511 8758 3536 8732 3527 8722 3519 8721
      3518 8723 3518 8721 3514 8721 3500 8737
      3500 8741

$$

JLM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 12:02 PM CDTSevere Thunderstorm WarningOHXDavidson, Sumner, Wilson35 min
Jun 2, 12:15 PM CDTSevere Thunderstorm WarningOHXHickman30 min
Jun 2, 12:47 PM CDTSevere Thunderstorm WarningOHXHickman23 min
Jun 2, 12:57 PM CDTSevere Thunderstorm WarningOHXHickman, Lewis, Maury33 min
Jun 2, 1:52 PM CDTSevere Thunderstorm WarningOHXMaury, Williamson23 min
Jun 2, 1:55 PM CDTSevere Thunderstorm WarningOHXCheatham, Davidson, Dickson, Williamson35 min
Jun 2, 2:18 PM CDTSevere Thunderstorm WarningOHXLawrence27 min
Jun 2, 2:38 PM CDTSevere Thunderstorm WarningOHXCheatham, Robertson37 min
Jun 2, 2:48 PM CDTSevere Thunderstorm WarningOHXLawrence27 min
Jun 2, 4:39 PM CDTSevere Thunderstorm WarningOHXMacon, Smith, Trousdale21 min
Jun 2, 5:26 PM CDTSevere Thunderstorm WarningOHXClay, Jackson, Macon34 min

Nearby

Flash Flood Warnings in Tennessee, 2009Every flash flood warning in 2009

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.