Alert archive / Tennessee / Flash Flood Warnings in 2011

Flash Flood Warning 46, NWS Nashville, TN

December 5, 2011Stewart County, Tennessee

NWS Nashville, TN issued this flash flood warning at Dec 5, 2011, 6:38 AM CST for Stewart 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
Dec 5, 2011, 6:38 AM CST (12:38 UTC)
Expired
Dec 5, 2011, 9:30 AM CST
In force
3 hr
Issued by
NWS Nashville, TN
Area
Storm-based polygon
Flood severity
None

County Stewart County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 0.6 hours before the alert went out and 123 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 2011-12-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2011-12-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 512 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
765 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
512 m²/s²
0-3 km storm-relative helicity
520 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.

121 
WGUS54 KOHX 051238
FFWOHX
TNC161-051530-
/O.NEW.KOHX.FF.W.0046.111205T1238Z-111205T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
638 AM CST MON DEC 5 2011

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  STEWART COUNTY IN MIDDLE TENNESSEE...

* UNTIL 930 AM CST

* AT 637 AM CST...EMERGENCY MANAGEMENT REPORTED THAT SEVERAL ROADS   
  WERE CLOSED DUE TO FLOODING RESULTING FROM EXCESSIVE RAINFALL.     
  RAIN WILL CONTINUE THROUGHOUT THE MORNING, AND MAY RESULT IN       
  ADDITIONAL FLOODING OF ROADS, CREEKS, STREAMS, AND OTHER LOW-LYING 
  AREAS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...DOVER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF
RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. TURN
AROUND... DONT DROWN.

&&

LAT...LON 3667 8786 3664 8784 3664 8764 3637 8759
      3637 8771 3633 8780 3633 8789 3636 8800
      3644 8807 3649 8806 3653 8804 3667 8808
      3668 8807

$$

ROSE

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 5, 9:21 AM CSTAreal Flood WarningOHXStewart12 hr
Dec 5, 11:56 AM CSTAreal Flood WarningOHXBenton10 hr
Dec 5, 2:42 PM CSTAreal Flood AdvisoryOHXCheatham, Dickson, Hickman, Houston, Humphreys, Montgomery and 2 more6 hr

Nearby

Flash Flood Warnings in Tennessee, 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.