Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 41, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Aug 21, 1990, 7:26 PM CDT for Fentress County, Morgan County, Tennessee. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Aug 21, 1990, 7:26 PM CDT (00:26 UTC)
- Expired
- Aug 21, 1990, 8:30 PM CDT
- In force
- 64 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
Counties Fentress County, TN, Morgan County, TN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 163 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.
- Mixed-layer CAPE
- 1489 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1678 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -62 m²/s²
- 0-3 km storm-relative helicity
- -40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTYS 220026 SVRTYS TNC049-129-220130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KNOXVILLE TN 826 PM EDT (726 PM CDT) TUE AUG 21 1990 THE NATIONAL WEATHER SERVICE IN KNOXVILLE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM EDT (830 PM CDT) FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL TENNESSEE ...SOUTHERN FENTRESS COUNTY...MORGAN COUNTY AT 715 PM CDT A SEVERE THUNDERSTORM WAS IN SOUTHWEST FENTRESS COUNTY MOVING TO THE ENE AT 15 MPH. THIS STORM KNOCKED DOWN NUMEROUS TREES AND POWER LINES IN SOUTHERN OVERTON COUNTY. 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. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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, Aug 21, 5:19 PM CDT, 2 hours 7 minutes before
GAZ001-TNZ003-005-006-230000- SPECIAL WEATHER STATEMENT...CORRECTION...TIME NATIONAL WEATHER SERVICE CHATTANOOGA TN 615 PM EDT TUE AUG 21 1990 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 10PM EDT FOR SOUTHEAST TENNESSEE AND NORTHWEST GEORIGA... AT 610PM EDT WEATHER RADAR CONTINUED TO INDICATE STRONG THUNDERSTORMS OVER NORTHERN RHEA COUNTY AND NORTHEAST BLEDSOE COUNTY BOTH IN SOUTHEAST TENNESSEE. THESE THUNDERSTORMS WERE MOVING VERY SLOWLY TOWARD THE NORTHEAST. ELSEWHERE SCATTERED SHOWERS AND THUNDERSHOWERS CONTINUED OVER SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA. IF A THUNDERSTORM DEVELOPS IN YOUR AREA TAKE STEPS FOR SAFETY OF SELF AND PROPERTY.
Special weather statement, Aug 21, 5:28 PM CDT, 1 hour 58 minutes before
TNZ001>005-016-VAZ008-009-013>016-KYZ006>009-WVZ003-004-006>008 NCZ006>013-SCZ001>004-GAZ002-212330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BRISTOL TN 625 PM EDT TUE AUG 21 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHEAST TENNESSEE... AT 625 PM...THUNDERSTORMS WITH VERY HEAVY RAIN WERE JUST WEST OF KINGSPORT TENNESSEE...OVER MOST OF EASTERN KENTUCKY...OVER NORTHERN SOUTH CAROLINA...AND SOUTH OF ASHEVILLE NORTH CAROLINA. MOST OF THE THUNDERSTORMS OVER SOUTHWESTERN NORTH CAROLINA HAVE DECREASED IN INTENSITY DURING THE PAST HOUR. SOME OF THE THUNDERSTORMS COULD PRODUCE STRONG GUSTY WINDS... FREQUENT LIGHTNING...AND POSSIBLE HAIL. THE THUNDERSTORMS WERE MOVING EAST AT 25 MILES AN HOUR.
Local storm report, Aug 21, 5:36 PM CDT, 1 hour 50 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHATTANOOGA TN
635 PM EDT TUE AUG 21 1990
...NORTHWEST GEORGIA...
COUNTY..................WALKER
SOURCE..................WALKER COUNTY ROAD DEPARTMENT
TIME....................ABOUT 540 PM EDT
LOCATION................NEAR THE LOOKOUT COMMUNITY IN THE EXTREME
SOUTHWEST PART OF WALKER COUNTY AND NEAR
THE VILLANOW COMMUNITY IN THE EXTREME
SOUTHEAST PART OF WALKER COUNTY
STORM TYPE..............THUNDERSTORM/WIND
DAMAGE..................TREES BLOWN DOWN AT BOTH LOCATIONS
INJURIES................NONE KNOWNSpecial weather statement, Aug 21, 6:15 PM CDT, 1 hour 11 minutes before
TNZ001>006-016-230000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KNOXVILLE TN 715 PM EDT MON AUG 21 1990 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR ALL OF EAST TENNESSEE UNTILL 10 PM EDT. STRONG THUNDERSTORMS ARE CURRENTLY MOVING THROUGH SCOTT AND FENTRESS COUNTIES OF EAST TENNESSEE. THE SCOTT COUNTY SHERIFF REPORTED HEAVY RAIN AND PEA SIZED HAIL AT ABOUT 7 PM EDT. RESIDENTS IN SCOTT AND FENTRESS COUNTIES SHOULD STAY ALERT AS THESE THUNDERSTORMS MOVE THROUGH THESE COUNTIES. THE THUNDERSTORMS ARE MOVING EAST NORTHEAST AT ABOUT 10 MPH. STAY TUNED TO THE NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TELEVISION STATION FOR FURTHER STATEMENTS IF NEEDED. 5
Special weather statement, Aug 21, 6:31 PM CDT, 55 minutes before
TNZ001>005-016-VAZ008-009-013>016-KYZ006>009-WVZ003-004-006>008 NCZ006>013-SCZ001>004-GAZ002-220030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE BRISTOL TN 725 PM EDT TUE AUG 21 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 10 PM EDT FOR MOST OF NORTHEAST TENNESSEE... AT 725 PM...NUMEROUS THUNDERSTORMS WITH VERY HEAVY RAIN WERE OVER SOUTHEAST KENTUCKY. SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER NORTHEAST TENNESSIEE FROM KNOXVILLE EAST...OVER THE SOUTHERN PIEDMONT OF NORTH CAROLINA AND OVER NORTHERN SOUTH CAROLINA.
Special weather statement, Aug 21, 7:08 PM CDT, 18 minutes before
GAZ001-TNZ003-005-006-230200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHATTANOOGA TN 800 PM EDT TUE AUG 21 1990 ...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 10PM EDT FOR SOUTHEAST TENNESSEE AND NORTHWEST GEORIGA... AT 755PM EDT WEATHER RADAR INDICATED WIDELY SCATTERED SHOWERS AND THUNDERSHOWERS OVER SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA. HOWEVER...RADAR INDICATED AN AREA OF HEAVY THUNDERSTORMS ACROSS THE NORTHERN CUMBERLAND PLATEAU TO THE NORTH OF CROSSVILLE. THIS AREA OF THUNDERSTORMS EXTENDED SOUTHWESTWARD INTO THE MURFREESBORO AREA OF MIDDLE TENNESSEE. PERSON IN AND NEAR THE SEVERE THUNDERSTORM WATCH SHOULD CONTINUE TO REMAIN ALERT FOR ADVERSE tWEATHER CONDITIONS.
Nearby
Severe Thunderstorm Warnings in Tennessee, 1990Every severe thunderstorm warning in 1990
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.