Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 64, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Mar 16, 1990, 7:18 PM EST for Clarke County, Jackson County, Madison County, Georgia. It was in force for 57 min. 4 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
- Mar 16, 1990, 7:18 PM EST (00:18 UTC)
- Expired
- Mar 16, 1990, 8:15 PM EST
- In force
- 57 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties Clarke County, GA, Jackson County, GA, Madison 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 |
|---|---|---|---|
| Mar 16, 7:25 PM EST | Thunderstorm Wind 0 | Jackson, GA | |
| Mar 16, 7:35 PM EST | Thunderstorm Wind 0 | Clarke, GA | |
| Mar 16, 8:05 PM EST | Thunderstorm Wind 0 | Clarke, GA | |
| Mar 16, 8:15 PM EST | Thunderstorm Wind 0 | Madison, 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 00:00Z, 0.3 hours before the alert went out and 15 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
- 60 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 428 m²/s²
- 0-3 km storm-relative helicity
- 525 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAHN 170019 RRA SVRAHN GAC011-059-119-133-157-195-219-221-170115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATHENS GA 718 PM EST FRI MAR 16 1990 THE NATIONAL WEATHER SERVICE IN ATHENS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST GEORGIA ...BANKS COUNTY...CLARKE COUNTY...FRANKLIN COUNTY...GREENE COUNTY ...JACKSON COUNTY...MADISON COUNTY...OCONEE COUNTY...OGLETHORPE COU AT 715 PM EST...NATIONAL WEATHER RADAR IN ATHENS GEORGIA INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING SOUTH FROM BANKS COUNTY TO SOUTHERN MORGAN COUNTY MOVING EAST AT 50 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY 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.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 16, 7:06 PM EST | Tornado Warning | FFC | Morgan, Oconee | 69 min |
| Mar 16, 7:18 PM EST | Severe Thunderstorm Warning | FFC | Greene, Oconee, Oglethorpe | 57 min |
| Mar 16, 7:18 PM EST | Severe Thunderstorm Warning | FFC | Banks, Franklin | 57 min |
| Mar 16, 7:40 PM EST | Tornado Warning | FFC | Clarke, Madison, Oglethorpe | 35 min |
| Mar 16, 7:53 PM EST | Severe Thunderstorm Warning | FFC | Elbert, Hart | 67 min |
| Mar 16, 7:59 PM EST | Severe Thunderstorm Warning | FFC | Wilkes | 61 min |
| Mar 16, 8:34 PM EST | Severe Thunderstorm Warning | FFC | Lincoln | 41 min |
| Mar 16, 8:59 PM EST | Severe Thunderstorm Warning | FFC | Lincoln | 61 min |
| Mar 16, 9:44 PM EST | Severe Thunderstorm Warning | FFC | Crawford, Monroe, Peach | 61 min |
| Mar 16, 9:44 PM EST | Severe Thunderstorm Warning | FFC | Jasper | 61 min |
| Mar 16, 9:52 PM EST | Flash Flood Warning | FFC | Polk | 8 hr |
| Mar 16, 9:57 PM EST | Flash Flood Warning | FFC | Cobb, Douglas, Fulton | 5 hr |
| Mar 16, 9:57 PM EST | Flash Flood Warning | FFC | DeKalb | 5 hr |
| Mar 16, 10:03 PM EST | Severe Thunderstorm Warning | FFC | Bibb, Jones | 57 min |
| Mar 17, 12:30 AM EST | Flash Flood Warning | FFC | DeKalb, Fulton | 6 hr |
| Mar 17, 12:30 AM EST | Flash Flood Warning | FFC | Cobb, Douglas | 6 hr |
| Mar 17, 1:59 AM EST | Flash Flood Warning | FFC | Henry, Rockdale | 4 hr |
| Mar 17, 1:59 AM EST | Flash Flood Warning | FFC | Clayton, Fayette, Spalding | 4 hr |
| Mar 17, 1:59 AM EST | Flash Flood Warning | FFC | Lamar, Pike, Upson | 4 hr |
| Mar 17, 1:59 AM EST | Flash Flood Warning | FFC | Butts | 4 hr |
| Mar 17, 2:26 AM EST | Severe Thunderstorm Warning | FFC | Crawford, Monroe | 64 min |
| Mar 17, 5:45 AM EST | Flash Flood Warning | FFC | Cobb, Douglas, Fulton | 6 hr |
| Mar 17, 5:45 AM EST | Flash Flood Warning | FFC | DeKalb | 6 hr |
| Mar 17, 6:08 AM EST | Flash Flood Warning | FFC | Butts, Clayton, Fayette, Henry, Lamar, Pike and 1 more | 4 hr |
| Mar 17, 6:08 AM EST | Flash Flood Warning | FFC | Upson | 4 hr |
| Mar 17, 6:08 AM EST | Flash Flood Warning | FFC | Rockdale | 4 hr |
| Mar 17, 6:37 AM EST | Flash Flood Warning | FFC | Fannin | 5 hr |
| Mar 17, 7:21 AM EST | Flash Flood Warning | FFC | White | 3 hr |
| Mar 17, 7:35 AM EST | Flash Flood Warning | FFC | Jasper, Jones, Monroe | 3 hr |
| Mar 17, 10:54 AM EST | Flash Flood Warning | FFC | Jones, Monroe | 3 hr |
Nearby
Severe Thunderstorm Warnings in Georgia, 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.