Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 2, NWS Morristown, TN

March 19, 1992Blount County, Loudon County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Mar 19, 1992, 12:39 PM EST for Blount County, Loudon County, Tennessee. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Mar 19, 1992, 12:39 PM EST (17:39 UTC)
Expired
Mar 19, 1992, 1:45 PM EST
In force
66 min
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Blount County, TN, Loudon County, TN

The nearest sounding before it

Athens Municipal, GA (KAHN), launched 12:00Z, 5.7 hours before the alert went out and 210 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, Athens Municipal, GA at 12:00Z on 1992-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 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, Athens Municipal, GA at 12:00Z on 1992-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
66 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
569 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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 KTYS 191739
SVRTYS
TNC009-105-155-191845-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KNOXVILLE TN
1239 PM EST THU MAR 19 1992
 
THE NATIONAL WEATHER SERVICE IN KNOXVILLE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  145 PM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL TENNESSEE
 
   ...BLOUNT COUNTY...SOUTHERN LOUDON COUNTY...SEVIER COUNTY
 
AT 1235 PM EST...THE PUBLIC REPORTED GOLFBALL SIZE HAIL NEAR GREENBACK
TENNESSEE. THE THUNDERSTORMS WERE MOVING TO THE EAST AT 40 TO 50 MPH.
 
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 19, 10:43 AM EST, 1 hour 56 minutes before
TNZ005-191645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHATTANOOGA TN
1041 AM EST THU MAR 19 1992

AT 1035 AM EST...THE CHATTANOOGA WEATHER RADAR WAS INDICATING A
THUNDERSTORM IN EASTERN FRANKLIN COUNTY TENNESSEE.

THIS STORM IS MOVING TO THE EAST AT 35 MILES PER HOUR AND WILL
MOVE INTO WESTERN MARION COUNTY IN SOUTHEAST TENNESSEE SHORTLY.

THIS THUNDERSTORM LIKELY CONTAINS STRONG GUSTY WINDS...VERY
HEAVY RAINFALL...DANGEROUS CLOUD TO GROUND LIGHTNING AND EVEN
SOME HAIL.

RESIDENTS OF MARION COUNTY SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER DURING THE NEXT HOUR OR SO.
Special weather statement, Mar 19, 11:32 AM EST, 1 hour 7 minutes before
TNZ001>005-016-VAZ008-009-013>016-KYZ006>009-WVZ003-004-006>008-
NCZ006>013-SCZ001>004-GAZ002-191730-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BRISTOL TN
1125 AM EST THUR MAR 19 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR GREENE AND UNICOI
COUNTIES OF NORTHEAST TENNESSEE UNTIL 4PM EST...

AT 1125 AM EST...SCATTERED THUNDERSTORMS AND SHOWERS WERE IN A
60 MILE WIDE AREA FROM NORTH OF BULEFIELD WEST VIRGINIA AND
EXTENDED THROUGH SOUTHWESTERN VIRGINIA TO SOUTH OF HARRIMAN
TENNESSEE. THE THUNDERSTORMS WERE MAINLY NORTH TO WEST OF
KNOXVILLE AREA.

THUNDERSTORMS IN THE WATCH AREA COULD PRODUCE LARGE HAIL...
DANGEROUS LIGHTNING AND DAMAGING WINDS.

MOVEMENT TO TsHE EAST AT 35 MILES AN HOUR.
Special weather statement, Mar 19, 12:12 PM EST, 27 minutes before
TNZ005-191800-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHATTANOOGA TN
1205 AM EST THU MAR 19 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 4PM EST FOR SOUTHEAST
TENNESSEE AND UPPER NORTHWEST GEORGIA...

AT 1205 PM EST...CHATTANOOGA WEATHER RADAR WAS DETECTING NUMEROUS
THUNDERSTORMS OVER SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA.
THESE THUNDERSTORMS HAVE PRODUCED HALF INCH HAIL OVER TRENTON
GEORGIA...AND OVER RED BANK AND JASPER TENNESSEE.

THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON...
AND WILL BE CAPABLE OF PRODUCING LARGE HAIL...STRONG GUSTY WINDS AND
HEAVY RAINFALL.

RESIDENTS OF SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA SHOULD
BE AWARE OF THE POTENTIAL OF THESE STORMS AND BE READY TO TAKE
IMMEDIATE ACTION.  STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER
STATEMENTS OR WARNINGS AS CONDITIONS WARRENT.
Special weather statement, Mar 19, 12:14 PM EST, 25 minutes before
TNZ005-191800-

SPECIAL WEATHER STATEMENT...CORRECTION FOR TIME...
NATIONAL WEATHER SERVICE CHATTANOOGA TN
1205 PM EST THU MAR 19 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 4PM EST FOR SOUTHEAST
TENNESSEE AND UPPER NORTHWEST GEORGIA...

AT 1205 PM EST...CHATTANOOGA WEATHER RADAR WAS DETECTING NUMEROUS
THUNDERSTORMS OVER SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA.
THESE THUNDERSTORMS HAVE PRODUCED HALF INCH HAIL OVER TRENTON
GEORGIA...AND OVER RED BANK AND JASPER TENNESSEE.

THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON...
AND WILL BE CAPABLE OF PRODUCING LARGE HAIL...STRONG GUSTY WINDS AND
HEAVY RAINFALL.

RESIDENTS OF SOUTHEAST TENNESSEE AND UPPERJ NORTHWEST GEORGIA SHOULD
BE AWARE OF THE POTENTIAL OF THESE STORMS AND BE READY TO TAKE
IMMEDIATE ACTION.  STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER
STATEMENTS OR WARNINGS AS CONDITIONS WARRENT.
Special weather statement, Mar 19, 12:39 PM EST, 0 minutes before
TNZ001>005-016-VAZ008-009-013>016-KYZ006>009-WVZ003-004-006>008-
NCZ006>013-SCZ001>004-GAZ002-191845-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE BRISTOL TN
1225 PM EST THU MAR 19 1992

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR GREENE AND UNICOI
COUNTIES OF NORTHEAST TENNESSEE UNTIL 4PM EST...

AT 1225 PM EST...A LINE OF STRONG THUNDERSTORMS...SOME WITH VERY
HEAVY RAINFALL WERE IN A 20 MILE WIDE AREA THAT EXTENDED FROM
PIKEVILLE TO 20 MILES EAST OF GATLINBURG TENNESSEE. THESE
THUNDERSTORMS ARE CAPABLE OF PRODUCING LARGE HAIL...DANGEROUS
LIGHTNING AND DAMAGING WIND.

ANOTHER AREA OF SHOWERS CONTINUED FOME EASTERN KENTUCKY AND
EXTENDED INTO SOUTHWESTERN VIRGINIA...NORTHEAST TENNESSEE TO
SOUTH OF ASHVILLE NORTH CAROLINA.

MOVEMENT TO THE EAST AT 40 MILES AN HOUR FOR ALL ACTIVITY.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 11:56 AM ESTSevere Thunderstorm WarningMRXMonroe64 min
Mar 19, 12:39 PM ESTSevere Thunderstorm WarningMRXSevier66 min
Mar 19, 1:06 PM ESTSevere Thunderstorm WarningMRXMonroe69 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1992Every severe thunderstorm warning in 1992

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.