Alert archive / Tennessee / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 77, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 31, 1986, 10:22 PM CDT for Marion County, Tennessee. It was in force for 68 min.
The area
The counties it named.
The facts
- Issued
- Jul 31, 1986, 10:22 PM CDT (03:22 UTC)
- Expired
- Jul 31, 1986, 11:30 PM CDT
- In force
- 68 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Marion 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, 3.4 hours before the alert went out and 142 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
- 1728 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 1622 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHA 010323 SVRCHA TNC115-010430- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TN 1122 PM EDT THU JUL 31 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHEAST TENNESSEE...MARION RADAR INDICATED A SEVERE THUNDERSTORM ON THE MARION COUNTY FRANKLIN COUNTY LINE MOVING EAST AT 30 MILES AN HOUR AND WILL CROSS ALL OF MARION COUNTY DURING THE NEXT HOUR. DAMAGING WINDS AND LARGE HAIL CAN BE EXPECTED. THIS IS A LARGE AND DANGEROUS STORM, PERSONS IN THE PATH OF THE STORM SHOULD TAKE SHELTER IMMEADIATELY. STAY TUNED TO THIS STATION FOR MORE INFORMATION
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
Local storm report, Jul 31, 5:05 PM CDT, 5 hours 17 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 605 PM EDT THU JUL 31 1986 HEARD COUNTY SHERIFFS OFFICE REPORTS STRONG WINDS KNOCKED DOWN TREES AND POWER LINES NEAR FRANKLIN GA AT 545 PM.
Local storm report, Jul 31, 5:37 PM CDT, 4 hours 45 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 635 PM EDT THU JUL 31 1986 TROUP COUNTY SHERIFFS OFFICE REPORTS NUMEROUS TREES DOWN IN THE COUNTY MAINLY FROM THE LAGRANGE GA AREA WEST. A FEW POWER LINES DOWN AND SEVERAL CARS DAMAGED BY FALLING TREES. NO REPORTS OF INJURIES AT THIS TIME. DAMAGE OCCURED AROUND 610 PM EST.
Local storm report, Jul 31, 7:22 PM CDT, 3 hours before
STORM REPORT NATIONAL WEATHER SERVICE COLUMBUS, GA 818 PM EDT FRI JUL 31 1986 REF STORM ACTIVITY JULY 31, 1986 COUNTY...RUSSELL IN ALABAMA TIME.....715-730 PM EDT LOCATION..SOUTH CENTRAL RUSSELL CONTY JUST WEST OF SEALE. TYPE STORM...SEVERE THUNDERSTORM DAMAGE.......TREES KNOCKED DOWN ACROSS COUNTY ROAD 22. SOURCE.......RUSSELL COUNTY SHERIFFS OFFICE. WARNINGS.....SEVERE THUNDERSTORM WARNING IN EFFECT.
Special weather statement, Jul 31, 7:24 PM CDT, 2 hours 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS, GA 820 PM EDT FRI JUL 31 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 442 CONTINUES IN EFFECT FOR PORTIONS OF WEST GEORGIA AND EAST ALABAMA UNTIL 10 PM EDT. AT 812 PM EDT WEATHER RADAR INDICATED INTENSE THUNDERSTORMS AROUND LUMPKIN GEORGIA..EUFAULA..HURTSBORO AND UNION SPRINGS ALABAMA. MOVEMENT WAS GENERALLY SOUTH AT 20 MPH. WITHIN THE PAST SEVERAL HOURS THERE WERE REPORTS OF WIND DAMAGE FROM THUNDERSTORMS WHICH MOVED THROUGH LAGRANGE GEORGIA..ALEXANDER CITY AND SEALE ALABAMA. CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER TO OCCUR FOR THE NEXT FEW HOURS. PLEASE REMAIN ALERT FOR THREATENING WEATHER RADIO OR OTHER LOCAL TV AND RADIO STATIONS FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Jul 31, 7:42 PM CDT, 2 hours 40 minutes before
SPECIAL WEATHER STATEMENT CORRECTED NATIONAL WEATHER SERVICE COLUMBUS, GA 842 PM EDT FRI JUL 31 1986 ..CORRECTION TO LAST SENTENCE.. ...SEVERE THUNDERSTORM WATCH NUMBER 442 CONTINUES IN EFFECT FOR PORTIONS OF WEST GEORGIA AND EAST ALABAMA UNTIL 10 PM EDT. AT 812 PM EDT WEATHER RADAR INDICATED INTENSE THUNDERSTORMS AROUND LUMPKIN GEORGIA..EUFAULA..HURTSBORO AND UNION SPRINGS ALABAMA. MOVEMENT WAS GENERALLY SOUTH AT 20 MPH. WITHIN THE PAST SEVERAL HOURS THERE WERE REPORTS OF WIND DAMAGE FROM THUNDERSTORMS WHICH MOVED THROUGH LAGRANGE GEORGIA..ALEXANDER CITY AND SEALE ALABAMA. CONDITIONS REMAIN FAVORABLE FOR SEVERE WEATHER TO OCCUR FOR THE NEXT FEW HOURS. PLEASE REMAIN ALERT FOR THREATENING WEATHER AND LISTEN TO NOAA WEATHER RADIO OR OTHER LOCAL TV AND RADIO STATIONS FOR LATER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Jul 31, 8:24 PM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS, GA 924 PM EDT FRI JUL 31 1986 ...SEVERE THUNDERSTORM WATCH NUMBER 442 REMAINS IN EFFECT FOR PORTIONS OF WEST GEORGIA AND EAST ALABAMA UNTIL 10 PM EDT. AT 920 PM EDT WEATHER RADAR STILL INDICATED SEVERAL INTENSE THUNDERSTORMS OVER EAST ALABAMA..ESPECIALLY IN BARBOUR AND HENRY COUNTIES AROUND EUFAULA AND CLAYTON. MOVEMENT WAS SOUTH AT 20 MPH. THERE WAS ALSO A LARGE AREA OF LIGHT TO MODERATE RAIN FROM NEAR LAGRANGE GEORGIA SOUTH TO TROY AND DOTHAN ALABAMA AND FORT GAINES GEORGIA. PLEASE REMAIN ALERT FOR THREATENING WEATHER AND CONTINUE TO LISTEN TO NOAA WEATHER RADIO OR OTHER LOCAL TV AND RADIO STATIONS FOR FURTHER UPD:ATES.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 10:46 PM CDT | Severe Thunderstorm Warning | FFC | Hamilton | 59 min |
| Jul 31, 11:36 PM CDT | Severe Thunderstorm Warning | FFC | Marion | 69 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1986Every severe thunderstorm warning in 1986
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.