Alert archive / Tennessee / Flash Flood Warnings in 1994

Flash Flood Warning 11, NWS Nashville, TN

March 27, 1994Wilson County, Tennessee

NWS Nashville, TN issued this flash flood warning at Mar 27, 1994, 1:55 AM CST for Wilson County, Tennessee. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Mar 27, 1994, 1:55 AM CST (07:55 UTC)
Expired
Mar 27, 1994, 6:00 AM CST
In force
4 hr
Issued by
NWS Nashville, TN
Area
Whole counties

County Wilson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 7.9 hours before the alert went out and 27 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 00:00Z on 1994-03-27Temperature 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 00:00Z on 1994-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 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
2380 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
466 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 270758
FFWBNA
TNC189-271200-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
155 AM CST SUN MAR 27 1994
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN MIDDLE TENNESSEE
 
   ...WILSON COUNTY
 
...TOWN CREEK IN LEBANON TENNESSEE WITHIN 3 FEET OF FLOOD STAGE
AND RISING QUICKLY...
 
AT 150 AM CST WILSON COUNTY EMERGENCY MANAGEMENT REPORTED TOWN
CREEK WHICH PASSES THROUGH THE CITY OF LEBANON HAS RISEN 10 INCHES
DURING THE LAST HOUR AND WAS WITHIN 3 FEET OF FLOOD STAGE AT
150 AM CST.
 
IF YOU LIVE ALONG TOWN CREEK HEAD FOR HIGHER GROUND.
 
WEATHER SERVICE RADAR WAS SHOWING HEAVY RAINFALL OVER WILSON
COUNTY AND NORTHERN RUTHERFORD COUNTY.  THE HEAVY RAINFALL
WILL LIKELY CONTINUE AT LEAST FOR THE NEXT 30 MINUTES TO
1 HOUR ACROSS THIS AREA BEFORE SLACKING OFF.  THE GROUND IS
COMPLETELY SATURATED AND RUNOFF WILL BE EXCESSIVE.
 
RAIN WAS COVERING ALL OF MIDDLE TENNESSEE...MUCH OF WEST TENNESSEE...
NORTHERN ALABAMA AND SOUTHERN KENTUCKY.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
 
 
&

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 27, 12:50 AM CST, 1 hour 5 minutes before
TNZ005>010-023>033-056>065-075>078-093>097-270750-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE  TN
1247 AM CST SUN MAR 27 1994

...RAINFALL HAS BEEN HEAVY IN A FEW SPOTS...

AT 1235 AM CST WEATHER SERVICE RADAR SHOWS THUNDERSTORMS
WITH HEAVY RAINFALL EXTENDING FROM COLUMBIA ACROSS FRANKLIN
AND MURFREESBORO.  THESE THUNDERSTORMS ARE PRODUCING BRIEF
PERIODS OF HEAVY RAINFALL AS THEY MOVE NORTHEAST AT 40 MILES
AN HOUR.

A LARGE AREA OF RAIN AND SHOWERS COVERED ALL OF MIDDLE
TENNESSEE...THE CUMBERLAND PLATEAU...SOUTHERN KENTUCKY AND
NORTHERN ALABAMA.

RAINFALL TOTALS OVER THE LAST 3 HOURS HAVE BEEN LESS THAN ONE-
INCH AT MOST LOCATIONS IN MIDDLE TENNESSEE.   THE GROUND IS NOW
SATURATED AND ADDITONAL RAINS WILL CAUSE CONSIDERABLE RUNOFF.

MOTORIST ARE URGED TO BE ON THE LOOKOUT FOR WATER OVER ROADWAYS
WHERE PONDING OF WATER MAY OCCUR.

DO NOT DRIVE THROUGH AREAS WHERE WATER COVERS THE ROAD.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 3:23 AM CSTSevere Thunderstorm WarningOHXMarshall67 min
Mar 27, 10:45 AM CSTFlash Flood WarningOHXHickman, Maury3 hr

Nearby

Flash Flood Warnings in Tennessee, 1994Every flash flood warning in 1994

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.