Alert archive / Tennessee / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 211, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 1, 1990, 4:32 PM EDT for McMinn County, Tennessee. It was in force for 58 min. 1 report 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
- Jul 1, 1990, 4:32 PM EDT (20:32 UTC)
- Expired
- Jul 1, 1990, 5:30 PM EDT
- In force
- 58 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County McMinn 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 |
|---|---|---|---|
| Jul 1, 4:40 PM EDT | Thunderstorm Wind 0 | Mcminn, 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 12:00Z, 8.5 hours before the alert went out and 195 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
- 1103 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1382 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 117 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 KCHA 012033 SVRCHA TNC107-012130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TENNESSEE 432 PM EDT SUN JUL 1 1990 THE NATIONAL WEATHER SERVICE IN CHATTANOOGA TENNESSEE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS IN SOUTHEAST TENNESSEE ...MCMINN COUNTY AT 430 PM EDT THE CHATTANOOGA WEATHER RADAR INDICATED A SEVERE THUNDERSTORM OVER MCMINN COUNTY. THE STRONGEST PART OF THIS STORM WAS IN WESTERN MCMINN COUNTY. THIS STORM IS MOVING TO THE SOUTHEAST AROUND 25 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLYF 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, Jul 1, 3:24 PM EDT, 1 hour 8 minutes before
GAZ001>004-012100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 325 PM EDT SUN JUL 01 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHERN GEORGIA UNTIL 10 PM EDT... AT 315 PM...RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS FROM THE WESTERN CAROLINAS INTO EASTERN TENNESSEE. MOVEMENT WAS SOUTHEAST AT 20 MPH. AT THEIR PRESENT SPEED...THE STORMS WILL REACH THE EXTREME NORTHERN SECTIONS OF GEORGIA BY 4 PM. ELSEWHERE...SHOWERS AND THUNDERSHOWERS HAD ALSO DEVELOPED IN EASTERN ALABAMA MOVING SOUTHEAST AT 20 MPH. PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT THIS AFTERNOON AND EVENING FOR DARKENING SKIES AND RAPIDLY CHANGING WEATHER CONDITIONS. THESE STORMS WILL PRODUCE VERY HEAVY RAIN REDUCING VISIBILITIES TO NEAR ZERO...STRONG WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND POSSIBLY HAIL. LARGE HAIL HAS ALREADY BEEN REPORTED IN SOME OF THE STRONGER STORMS IN EAST CENTRAL TENNESSE EARLIER THBIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL TV AND RADIO STATIONS FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
Special weather statement, Jul 1, 3:31 PM EDT, 1 hour 1 minute before
GAZ002-004-012045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 340 PM EDT SUN JUL 1 1990 ...SEVERE THUNDERSTORM WARNING IN EFFECT FOR ALL COUNTIES OF NORTHEAST GEORGIA UNTIL 10 PM EDT... THUNDERSTORMS SOME WHICH ARE LIKELY TO BECOME SEVERE REACH FROM THE NORTHWESTERN PART OF SOUTH CAROLINA THROUGH SOUTHERN NORTH CAROLINA AND INTO EASTERN TENNESSEE. AT 325 PM THE LARGER STORMS WERE SOUTHWEST OF CHARLOTTE PNORTH CAROLINA, NORTH OF GREENVILLE SOUTH CAROLINA, AND NEAR TELLICO PLAINS IN SOUTHEAST TENNESSEE. MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH.
Special weather statement, Jul 1, 3:35 PM EDT, 57 minutes before
GAZ002-004-012045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...COR... NATIONAL WEATHER SERVICE ATHENS GA 340 PM EDT SUN JUL 1 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR ALL COUNTIES OF NORTHEAST GEORGIA UNTIL 10 PM EDT... THUNDERSTORMS SOME WHICH ARE LIKELY TO BECOME SEVERE REACH FROM THE NORTHWESTERN PART OF SOUTH CAROLINA THROUGH SOUTHERN NORTH CAROLINA AND INTO EASTERN TENNESSEE. AT 325 PM THE LARGER STORMS WERE SOUTHWEST OF CHASRLOTTE NORTH CAROLINA, NORTH OF GREENVILLE SOUTH CAROLINA, AND NEAR TELLICO PLAINS IN SOUTHEAST TENNESSEE. MOVEMENT WAS TO THE SOUTHEAST AT 25 MPH.
Special weather statement, Jul 1, 4:20 PM EDT, 12 minutes before
GAZ001>003-012200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 420 PM EDT SUN JUL 01 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR MOST OF NORTHERN GEORGIA UNTIL 10 PM EDT... AT 415 PM...RADAR SHOWED AN AREA OF STRONG THUNDERSTORMS FROM THE WESTERN CAROLINAS INTO EASTERN TENNESSEE. MOVEMENT WAS SOUTHEAST AT 25 MPH. AT THEIR PRESENT SPEED...THE STORMS WILL REACH THE NORTHEAST GEORGIA MOUNTAINS BEFORE 5 PM EDT...PRIMARILY EAST OF BLUE RIDGE LAKE. ELSEWHERE...SHOWERS AND THUNDERSHOWERS WERE ALSO IN TENNESSEE NORTHWEST OF CHATTANOOGA. THEY WILL BE MOVING INTO NORTHWEST GEORGIA BEFORE 5 PM. PERSONS THROUGHOUT NORTH GEORGIA SHOULD REMAIN ALERT THIS AFTERNOON AND EVENING FOR DARKENING SKIES AND RAPIDLY CHANGING WEATHER CONDITIONS. THESE STORMS WILL PRODUCE VERY HEAVY RAIN REDUCING VISIBILITIES TO NEAR ZERO...STRONG WINDS...DANGEROUS CLOUD TO GROUND LIGHTNING...AND POSSIBLY HAIL. LARGE HAIL HAS ALREADY BEEN REPORTED IN SOME OF THE STRONGER STORMS IN EAST CENTRAL TENNESSE EARLIER THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL TV AND RADIO STATIONS FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 4:49 PM EDT | Severe Thunderstorm Warning | FFC | Bradley, Polk | 56 min |
| Jul 1, 6:14 PM EDT | Severe Thunderstorm Warning | FFC | McMinn, Polk | 61 min |
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.