Alert archive / Georgia / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 108, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Nov 20, 1986, 12:25 PM EST for Bibb County, Houston County, Twiggs County, Georgia. It was in force for 35 min. 3 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
- Nov 20, 1986, 12:25 PM EST (17:25 UTC)
- Expired
- Nov 20, 1986, 1:00 PM EST
- In force
- 35 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Bibb County, GA, Houston County, GA, Twiggs County, GA
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 |
|---|---|---|---|
| Nov 20, 12:30 PM EST | Thunderstorm Wind 0 | Bibb, GA | |
| Nov 20, 12:30 PM EST | Thunderstorm Wind 0 | Twiggs, GA | |
| Nov 20, 12:45 PM EST | Thunderstorm Wind 0 | Twiggs, GA |
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
Athens Municipal, GA (KAHN), launched 12:00Z, 5.4 hours before the alert went out and 148 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
- 2 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 594 m²/s²
- 0-3 km storm-relative helicity
- 760 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Nov 20, 8:41 AM EST, 3 hours 44 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 840 AM EST THU NOV 20 1986 A BAND OF STRONG THUNDERSTORMS IS MOVING INTO NORTHWEST GEORGIA THIS MORNING. THE THUNDERSTORMS EXTENDED FROM JUST SOUTH OF ROME TO CARROLONTON AND LAGRANGE AT 835 AM. THE POLICE DEPARTMENT IN BREMEN IN HARALSON COUNTY REPORTED STRONG GUSTY WINDS OF 45 MPH AS THIS BAND OF THUNDERSTORMS MOVED THROUGH AT 8 30 AM. THIS BAND OF THUNDERSTORMS IS MOVING RAPIDLY EAST AT 45 MPH AND SHOULD APPROACH THE WESTERN SUBURBS OF ATLANTA BETWEEN 9 AND 9 30 AM. PEROPLE IN THE AREA SHOULD BE ALERT FOR STRONG GUSTY WINDS OF 45 TO 50 MPH AND BRIEF HEAVY RAIN AS THIS SYSTEM MOVES IN FROM THE WEST.
Special weather statement, Nov 20, 10:10 AM EST, 2 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 1008 AM EST THU NOV 20 1986 AT 10 AM A NARROW BAND OF STRONG THUNDERSTORMS WAS LOCATED IN NORTH CENTRAL GEORGIA FROM NEAR COVINGTON TO GRIFFIN. THESE THUNDERSTORMS WERE MOVING RAPIDLY EAST AND WILL BE MOVING TO NEAR MONTICELLO AND THE REST OF NORTHERN JASPER COUNTY WITHIN THE NEXT HALF HOUR. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS AND BRIEF HEAVY RAINS AS THEY CONTINUE TO MqOVE EAST NEAR 50 MPH.
Special weather statement, Nov 20, 10:42 AM EST, 1 hour 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS, GA 1040 AM EST THU NOV 20 1986 A SCATTERED AREA OF STRONG THUNDERSTORMS WAS MOVING ACROSS EAST CENTRAL ALABAMA AND WAS APPROACHING WEST CENTRAL GEORGIA. THESE STORMS WERE THE LEADING EDGE OF A LARGE AREA OF RAIN AND WERE SCATTERED FROM 15 MILES EAST OF MONTGOMERY ALABAMA ACROSS OPELIKA TO NEAR LANETT. MOVEMENT WAS TO THE EAST AT NEAR 30 MILES AN HOUR. PEOPLE IN THE AREA SHOULD BE PREPARED FOR STRONG GUSTY WINDS OF 30 TO 40 MPH WITH BRIEF HEAVY RAIN. SOME QUICK FLOODING OF STREETS AND SMALL STREAMS IN THE COLUMBUS AREA WILL LIKELY TAKE PLACE AS THESE STORMS AND THIS LARGE AREA OF RAIN MOVES THROUGH. LISTEN TO NOAA RADIO FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS FOR THE NEXT COUPLE OF HOURS UNTIL THE THREAT OF THESE STORMS MOVES ON EAST.
Special weather statement, Nov 20, 11:07 AM EST, 1 hour 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 1105 AM EST THU NOV 20 1986 AT 1100 AM A NARROW BAND OF THUNDERSTORMS WAS IN LINE FROM NEAR EATONTON WEST TO NEAR FORSYTH AND CONTINUED TO NEAR LAGRANGE. NO SEVERE WEATHER HAS BEEN REPORTED IN CENTRAL GEORGIA...HOWEVER THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS AND PERIODS OF HEAVY RAINS. BECAUSE OF PRIOR RAINFALL AMOUNTS NEAR TWO INCHS...LOCALIZED FLOODING OF STREETS AND POOR DRAINAGE AREAS IS POSSIBLE WITH THESE THUNDERSTORMS AS THEY CONTINUE TO MOVE EAST. UPDATES CAN BE HEARD ON THE NOAA WEATHER RADIO THROUGHOUT THIS AFTERNOON.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 20, 8:51 AM EST | Severe Thunderstorm Warning | FFC | Douglas, Fulton | 54 min |
| Nov 20, 8:51 AM EST | Severe Thunderstorm Warning | FFC | Paulding | 54 min |
| Nov 20, 9:04 AM EST | Severe Thunderstorm Warning | FFC | Cobb, Fulton | 56 min |
| Nov 20, 9:13 AM EST | Severe Thunderstorm Warning | FFC | DeKalb, Henry, Rockdale | 62 min |
| Nov 20, 9:13 AM EST | Severe Thunderstorm Warning | FFC | Forsyth, Gwinnett | 62 min |
| Nov 20, 9:40 AM EST | Severe Thunderstorm Warning | FFC | Barrow, Walton | 60 min |
| Nov 20, 9:40 AM EST | Severe Thunderstorm Warning | FFC | Newton | 60 min |
| Nov 20, 10:05 AM EST | Severe Thunderstorm Warning | FFC | Clarke, Oconee | 35 min |
| Nov 20, 10:05 AM EST | Severe Thunderstorm Warning | FFC | Morgan | 35 min |
| Nov 20, 10:30 AM EST | Severe Thunderstorm Warning | FFC | Greene, Oglethorpe, Taliaferro | 20 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.