Alert archive / Tennessee / Flash Flood Warnings in 1991

Flash Flood Warning 4, NWS Nashville, TN

February 19, 1991Lawrence County, Lewis County, Wayne County, Tennessee

NWS Nashville, TN issued this flash flood warning at Feb 19, 1991, 9:23 AM CST for Lawrence County, Lewis County, Wayne County, Tennessee. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 1991, 9:23 AM CST (15:23 UTC)
Expired
Feb 19, 1991, 3:30 PM CST
In force
6 hr
Issued by
NWS Nashville, TN
Area
Whole counties

Counties Lawrence County, TN, Lewis County, TN, Wayne County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 3.4 hours before the alert went out and 124 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 1991-02-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 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 1991-02-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -82 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
2 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
-82 m²/s²
0-3 km storm-relative helicity
115 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 
TTAA00 KBNA 191525
FFWBNA
TNC099-101-181-192130-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
923 AM CST TUE FEB 19 1991
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  330 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN MIDDLE TENNESSEE
 
   ...LAWRENCE COUNTY...LEWIS COUNTY...WAYNE COUNTY
 
CIVIL DEFENSE DIRECTORS REPORT THAT SEVERAL ROADS AND BRIDGES
HAVE BEEN CLOSED IN LAWRENCE COUNTY WITH SEVERAL ROADWAYS
COVERED WITH WATER IN WAYNE AND LEWIS COUNTIES.
 
AT 930 AM CST SATELLITE AND WEATHER RADAR SHOW ANOTHER SURGE
OF HEAVY RAINFALL MOVING INTO MIDDLE TENNESSEE WITH ADDITIONAL
RAINFALL AMOUNTS OF 3 INCHES OR MORE.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING T?HREATENING RAINS.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 7:18 AM CSTFlash Flood WarningOHXGiles, Marshall, Maury6 hr
Feb 19, 7:18 AM CSTFlash Flood WarningOHXBedford6 hr
Feb 19, 7:58 AM CSTFlash Flood WarningOHXRutherford6 hr
Feb 19, 10:44 AM CSTFlash Flood WarningOHXLincoln, Moore6 hr
Feb 19, 1:41 PM CSTFlash Flood WarningOHXGiles, Marshall, Maury4 hr

Nearby

Flash Flood Warnings in Tennessee, 1991Every flash flood warning in 1991

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.