Alert archive / Tennessee / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 4, NWS Nashville, TN

March 24, 1994Williamson County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Mar 24, 1994, 5:23 AM CST for Williamson County, Tennessee. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Mar 24, 1994, 5:23 AM CST (11:23 UTC)
Expired
Mar 24, 1994, 6:30 AM CST
In force
67 min
Issued by
NWS Nashville, TN
Area
Whole counties

County Williamson County, TN

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 11.4 hours before the alert went out and 38 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 1994-03-24Temperature 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 1994-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.19395878Sfc1 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
2067 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBNA 241126
SVRBNA
TNC187-241230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
523 AM CST THU MAR 24 1994
 
THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  630 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN MIDDLE TENNESSEE
 
   ...WILLIAMSON COUNTY
 
...SEVERE THUNDERSTORMS IN WESTERN WILLIAMSON COUNTY...
 
WEATHER SERVICE RADAR INDICATES A CLUSTER OF SEVERE THUNDERSTORMS
IN THE WESTERN PART OF WILLIAMSON COUNTY AT 520 AM CST.
 
THIS CLUSTER OF STORMS WAS MOVING SLOWLY TOWARD THE EAST.
 
HEAVY RAINS WILL ACCOMPANY THESE STORMS ALONG WITH FREQUENT
CLOUD TO GROUND LIGHTNING AND HAIL.
 
WATER MAY POND ON ROADWAYS QUICKLY...SO MOTORIST SHOULD USE
CAUTION.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 24, 3:51 AM CST, 1 hour 32 minutes before
TNZ005-006-007-008-009-010-023-024-025-026-027-028-029-030-031-
032-033-056-057-058-059-060-061-062-063-064-065-075-076-077-078-
093-094-095-096-097-241045-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE TN
349 AM CST THU MAR 24 1994

...STRONG THUNDERSTORMS IN WESTERN MIDDLE TENNESSEE...

AT 340 AM CST...BOTH THE MEMPHIS AND NASHVILLE WEATHER RADARS
INDICATED STRONG THUNDERSTORMS IN NORTHERN PERRY COUNTY...
10 MILES NORTH OF LINDEN TENNESSEE.  THESE STORMS MAY PRODUCE
BRIEF HEAVY RAIN AND SMALL HAIL.

THESE STORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.

OTHERWISE...SCATTERED LIGHT SHOWERS WERE NOTED ACROSS SOUTHERN
MIDDLE TENNESSEE FROM PULASKI TO WINCHESTER.

A COLD FRONT EXTENDS EARLY THIS MORNING THROUGH SOUTHERN
ILLINOIS AND SOUTHEAST MISSOURI.  THE FRONT WILL INCREASE THE
CHANCES FOR THUNDERSTORMS IN THE MID STATE AREA LATER THIS MORNING.

THE COLD FRONT WILL BE PASSING THROUGH THE MID STATE AREA AROUND
NOON WITH CONDITIONS IMPROVING BY LATE AFTERNOON.
Special weather statement, Mar 24, 4:48 AM CST, 35 minutes before
TNZ005>010-023>033-056>065-075>078-093>097-241150-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE NASHVILLE  TN
446 AM CST THU MAR 24 1994

...STRONG THUNDESTORMS IN WESTERN MIDDLE TENNESSEE...

AT 440 AM CST WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS
EXTENDING FROM LINDEN ACROSS CENTERVILLE TO LYLES IN WESTERN
MIDDLE TENNESSEE.

THESE STORMS ARE CAPABLE OF PRODUCING BRIEF HEAVY RAIN...GUSTY
WINDS AND SMALL HAIL.T

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 25 MILES AN HOUR.

ANOTHER AREA OF STRONG THUNDERSTORMS THROUGH WESTERN KENTUCKY WAS
ASSOCIATED WITH A COLD FRONT MOVING THROUGH SOUTHERN ILLINOIS AND
SOUTHEAST MISSOURI.

Nearby

Severe Thunderstorm Warnings in Tennessee, 1994Every severe thunderstorm 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.