Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 328, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 29, 1990, 7:02 PM CDT for Grundy County, Marion County, Tennessee. It was in force for 58 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 29, 1990, 7:02 PM CDT (00:02 UTC)
- Expired
- Aug 29, 1990, 8:00 PM CDT
- In force
- 58 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Grundy County, TN, Marion County, TN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 29, 7:15 PM CDT | Hail 0.75 | Grundy, TN | |
| Aug 29, 7:30 PM CDT | Thunderstorm Wind 0 | Marion, TN |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 0.0 hours before the alert went out and 128 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
- 517 J/kg
- Mixed-layer CIN
- -266 J/kg
- Mixed-layer LCL
- 1250 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 214 m²/s²
- 0-3 km storm-relative helicity
- 207 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHA 300004 SVRCHA TNC061-115-300100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TENNESSEE 802 PM EDT (702 PM CDT) WED AUG 29 1990 THE NATIONAL WEATHER SERVICE IN CHATTANOOGA TENNESSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM EDT (800 PM CDT) FOR PEOPLE IN THE FOLLOWING LOCATIONS IN SOUTHEAST TENNESSEE ...SOUTHERN GRUNDY COUNTY...MARION COUNTY AT 800 PM EDT CHATTANOOGA WEATHER RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTHERN GRUNDY COUNTY NEAR MONTEAGLE. THE STORM IS MOVING RAPIDLY TO THE SOUTHEAST AND WILL MOVE INTO MARION COUNTY SHORTLY. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOU%LD 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 29, 4:12 PM CDT, 2 hours 50 minutes before
GAZ008-011-292315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 511 PM EDT WED AUG 29 1990 A FEW VERY STRONG THUNDERSTORMS WERE IN SOUTHWEST GEORGIA OCCURRING IN AN AREA OF RAIN FROM 5 MILES SOUTHEAST OF SYLVESTER TO 14 MILES SOUTHEAST OF MOULTRIE. THE STRONGEST THUNDERSTORMS WERE JUST NORTH AND SOUTH OF BRIDGEBORO AND 4 MILES SOUTHEAST OF DOERUN, THESE STORMS WERE MOVING SLOWLY NORTHWEST. THE COLQUITT COUNTY EMA HAS REPORTED SMALL HAIL AND STRONG GUSTY WINDS WITH THESE STORMS..ALSO A HOUSE TRAILER WAS REPORTED BLOWN OVER NEAR DOERUN. PERSONS NEAR THESE STORMS SHOULD BE READY TO TAKE PROTECTIVE ACTION. DANGEROUS LIGHTNING AND VERY HEAVY RAIN WILL ALSO ACCOMPANY THESE STORMS. LISTEN TO NOA WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Aug 29, 5:34 PM CDT, 1 hour 28 minutes before
GAZ002-004-292330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 630 PM EDT WED AUG 29 1990 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL COUNTIES OF NORTHEAST GEORGIA UNTIL 1000 PM EDT. A BAND OF STRONG THUNDERSTORMS...25 MILES WIDE...EXTENDS FROM NEAR CHATTANOOGA TENNESSEE TO BREVARD NORTH CAROLINA. THIS BAND WAS ALONG AND JUST NORTH OF THE GEORGIA STATE LINE. THIS BAND OF STORMS WILL BE MOVING INTO NORTHEcAST GEORGIA DURING THE NEXT HOUR. THESE STORMS WERE MOVING TO THE SOUTHEAST 35 MPH ACCOMPANIED BY VERY HEAVY RAINS...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND POSSIBLE HAIL.
Special weather statement, Aug 29, 5:49 PM CDT, 1 hour 13 minutes before
GAZ008-011-292345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 647 PM EDT WED AUG 29 1990 A SEVERE THUNDERSTORM WARNING WAS ISSUED BY TALLAHASSEE FLORIDA WEATHER FOR SEMINOLE COUNTY UNTIL 7 PM EDT. AT 645 PM EDT COLUMBUS WEATHER RADAR WAS SHOWING SEVERAL VERY STRONG THUNDERSTORMS IN EXTREME SOUTHWEST GEORGIA NEAR THE STATE LINE. THESE STORMS WERE IN EARLY COUNTY JUST WEST OF BLAKELY AND THE STRONGER STORM 7 MILES SOUTHWEST OF BLAKELY TO THE SEVERE THUNDERSTORM IN SEMINOLE COUNTY NEAR DONALDSONVILLE. THESE STORMS WERE MOVING LITTLE. PERSONS NEAR THESE STORMS IN EARLY COUNTY CAN EXPECT MARBLE SIZE HAIL..DANGEROUS LIGHTNING..STRONG GUSTY WINDS TO 40 MPH AND SOME HEjAVY RAIN. DUE TO THE SLOW MOPVEMENT OF THESE STORMS.. SOME LOCAL FLOODING MAY OCCUR ALONG ROADS AND SMALL STREAMS. YOU SHOULD SEEK SHELTER WHEN THESE STORMS COME NEAR. LISTEN TO NOAA WEATHER RADIO FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Local storm report, Aug 29, 6:03 PM CDT, 59 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA, GA 700 PM WED AUG 29 1990 COUNTY...... FANNIN COUNTY LOCATION.... MC CAYSVILLE GA. SOURCE...... MC CAYSVILLE POLICE DEPT TIME........ APPRX 635| PM EDT TYPE STORM.. SEVERE THUNDERSTORM DAMAGE...... SEVERAL TREES BLOWN DOWN HAIL........ NONE REPORTED INJURIES.... NONE REPORTED. COSTS....... UNKNOWN
Special weather statement, Aug 29, 6:36 PM CDT, 26 minutes before
GAZ002-004-300030- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 730 PM EDT WED AUG 29 1990 THE SEVERE THUNDERSTORM WARNING FOR UNION AND LUMPKIN COUNTIES OF NORTHEAST GEORGIA HAS BEEN CANCELLED. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL COUNTIES OF NORTHEAST GEORGIA UNTIL 1000 PM EDT. A BAND OF STRONG THUNDERSTORMS CONTINUES ACROSS NORTHEAST GEORGIA AND WESTERN SOUTH CAROLINA. THIS BAND EXTENDS FROM LAKE SIDNEY LANIER IN GEORGIA TO TOCCOA AND INTO SOUTH CAROLINA NEAR GREENVILLE. STORMS IN THIS BAND ARE CAPABLE OF PRODUCING HEAVY RAINFALL...STRONG GUSTY WINDS...FREQUENT LIGHTNING AND SOME HAIL. MOVEMENT WAS TO THE SOUTHEAST 35 MPH.
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.