Alert archive / Georgia / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 47, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 21, 1986, 4:31 PM EDT for Screven County, Georgia. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jul 21, 1986, 4:31 PM EDT (20:31 UTC)
- Expired
- Jul 21, 1986, 5:40 PM EDT
- In force
- 69 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Screven County, GA
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
Charleston AFB, SC (KCHS), launched 12:00Z, 8.5 hours before the alert went out and 152 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
- 3250 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1240 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 0 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 KAGS 212031 SVRAGS GAC251-212130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUGUSTA GA 431 PM EDT MON JUL 21 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF EAST CENTRAL GEORGIA...SOUTHERN SCREVEN WEATHER RADAR AT 425 PM EDT DETECTED A SEVER THUNDERSTORM OVER SOUTHERN SECTIONS OF SCREVEN COUNTY IN THE VICINITY OF HUNTERS MOVING SOUTH AT ABOUT 5 MILES AN HOUR. A SEVERE THUNDERSTORM IS DEFINED AS HAVING WINDS AT LEAST 58 MPH AND/OR HAIL 3/4 INCH IN DIAMETER OR LARGER. IF THREATENING WEATHER APPROACHES...TAKE IMMEDIATE PRECAUTIONS. THIS STORM IS ACCOMPANIED BY FREQUENT LIGHTNING AND STRONG GUSTY WINDS. PEOPLE WHO LIVE IN FLOOD PRONE AREAS SHOULD BE ON THE ALERT FOR RAPIDLY RISING WATERS AND BE PREPARED TO TAKE THE NECESSARY ACTIONS TO PROTECT LIFE AND PROPERTY. THIS SLOW MOVING TH(UNDERSTORM MAY CAUSE FLOODING OF SMALL STREAMS AND UNDERPASSES. DO NOT ATTEMPT TO DRIVE THROUGH WATER OVER ROADWAYS.
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 21, 2:11 PM EDT, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS, GA 215 PM EDT MON JUL 21 1986 ...VERY STRONG THUNDERSTORMS DEVELOPING OVER EAST CENTRAL ALABAMA.. AND WEST CENTRAL GEORGIA... WEATHER RADAR AT COLUMBUS GEORGIA SHOWED VERY STRONG THUNDERSTORMS DEVELOPING OVER EAST CENTRAL ALABAMA AND WEST CENTRAL GEORGIA WITH THE HEAVIEST STORM LOCATED NEAR OPELIKA ALABAMA AND JUNCTION CITY GEORGIA. THE THUNDERSTORMS SHOW VERY LITTLE MOVEMENT. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS..VERY DANGEROUS LIGHTNING..TORRENTIAL RAIN AND SMALL HAIL..PERSONS IN THESE AREAS SHOULD REMAIN ON THE ALERT FOR THESE CONDITIONS FOR THE NEXT COUPLE OF HOURS.
Special weather statement, Jul 21, 2:29 PM EDT, 2 hours 2 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS, GA 230 PM EDT MON JUL 21 1986 ...VERY STRONG THUNDERSTORMS DEVELOPING OVER WEST CENTRAL AND SOUTH CENTRAL GEORGIA. WEATHER RADAR AT COLUMBUS GEORGIA SHOWED VERY STRONG THUNDERSTORMS DEVELOPING OVER WEST CENTRAL AND SOUTH CENTRAL GEORGIA WITH THE HEAVIEST STORM LOCATED NEAR BLAKELY AND ALBANY GEORGIA. THE THUNDERSTORMS SHOW VERY LITTLE MOVEMENT. THESE THUNDERSTORMS WILL PRODUCE STRONG GUSTY WINDS..VERY DANGEROUS LIGHTNING..TORRENTIAL RAIN AND SMALL HAIL..PERSONS IN THESE AREAS SHOULD REMAIN ON THE ALERT FOR THESE CONDITIONS FOR THE NEXT COUPLE OF HOURS.
Special weather statement, Jul 21, 3:06 PM EDT, 1 hour 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 3 PM EDT MON JUL 21 1986 ....STRONG THUNDERSTORMS DEVELOPING OVER PORTIONS OF GEORGIA.... AT 250 PM EDT WEATHER SERVICE RADAR SHOWED SCATTERED SHOWERS AND THUNDERSTORMS DEVELOPING OVER A LARGE PORTION OF GEORGIA INCLUDING CENTRAL AND SOUTHCENTRAL SECTIONS. THE STRONGEST THUNDERSTORMS WERE LOCATED OVER NORTHCENTRAL TELFAIR.. WHEELER..BEN HILL..AND TURNER COUNTIES. THE STRONGEST OF THESE THUNDERSTORMS ARE LIKELY TO PRODUCE STRONG GUSTY WINDS..VERY HEAVY RAIN..DANGEROUS LIGHTNING..AND POSSIBLY SMALL HAIL AS THEY DEVELOP AND DRIFT SOUTHEAST DURING THE AFTERNOON AND EARLY EVENING. MOTORIST SHOULD BE ESPECIALLY ALERT FOR SUDDEN HEAVY RAIN AND WET ROADS.
Special weather statement, Jul 21, 3:48 PM EDT, 43 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATHENS GA 345 PM EDT MON JUL 21 1986 AT 345 PM EDT RADAR INDICATED VERY STRONG THUNDERSTORMS IN NORTHEAST GEORGIA JUST NORTH OF CLEVELAND IN WHITE COUNTY AND OVER THE NORTH END OF LAKE OCONEE IN GREENE COUNTY. THESE THUNDERSTORMS WERE DRIFTING TO THE SOUTHEAST AT LESS THAN 10 MILES AN HOUR. PERSONS IN NORTHEAST GEORGIA...ESPECIALLY WHITE..HABERSHAM AND GREENE COUNTIES...SHOULD BE ON THE ALERT FOR POSSIBLE THREATENING WEATHER FOR THE NEXT COUPLE OF HOURS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 3:10 PM EDT | Severe Thunderstorm Warning | FFC | Telfair, Wheeler | 65 min |
| Jul 21, 6:35 PM EDT | Severe Thunderstorm Warning | FFC | Clarke, Oconee, Oglethorpe | 55 min |
| Jul 21, 7:15 PM EDT | Severe Thunderstorm Warning | FFC | Lamar | 30 min |
| Jul 21, 7:30 PM EDT | Severe Thunderstorm Warning | FFC | Coweta | 45 min |
| Jul 21, 7:37 PM EDT | Severe Thunderstorm Warning | FFC | Greene, Oglethorpe, Taliaferro | 68 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; the sounding from the Mesonet's radiosonde archive.