Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 248, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Aug 2, 1990, 2:56 PM EDT for DeKalb County, Gwinnett County, Georgia. It was in force for 49 min. 2 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
- Aug 2, 1990, 2:56 PM EDT (18:56 UTC)
- Expired
- Aug 2, 1990, 3:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
Counties DeKalb County, GA, Gwinnett 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 |
|---|---|---|---|
| Aug 2, 3:10 PM EDT | Thunderstorm Wind 0 | De Kalb, GA | |
| Aug 2, 3:30 PM EDT | Thunderstorm Wind 0 | De Kalb, 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, 6.9 hours before the alert went out and 77 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 37 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 KATL 021859 SVRATL GAC089-135-021945- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 256 PM EDT THU AUG 2 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...DEKALB COUNTY...SOUTHERN GWINNETT COUNTY AT 3 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR NEAR STONE MOUNTAIN MOVING EAST AT ABOUT 15 MPH. THIS STORM WILL BE MOVING INTO SOUTHERN GWINNETT COUNTY WITHIN THE NEXT HOUR. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES O(R ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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, Aug 2, 1:22 PM EDT, 1 hour 34 minutes before
GAZ001-003-310200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 125 PM EDT TUE AUG 02 1990 AT 125 PM WEATHER SERVICE RADAR INDICATED THUNDERSTORMS DEVELOPING RAPIDLY OVR NORTHWEST GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED 10 MILES SOUTHEAST OF CEDARTOWN IN POLK COUNTY...10 MILES SOUTHWEST AND 10 MILES NORTH OF VILLA RICA IN CARROLL COUNTY...AND 15 MILES WEST OF NEWNAN IN COWETA COUNTY. THESE STORMS WERE MOVING TO THE EAST AT 15 MPH. THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOP ACROSS NORTHWEST GEORGIA DURING THE AFTERNOON. THESE STORMS MAY BE ACCOMPANIED BY HIGH WINDS...BRIEF HEAVY RAIN... LIGHTNING AND SMALL HAIL. PERSONS IN NORTHWEST GEORGIA ARE URGED TOt STAY TUNED TO NOAA WEATHER RADIO OR OTHER LOCAL MEDIA FOR UPDATES ON THIS SITUATION.
Local storm report, Aug 2, 2:53 PM EDT, 3 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA, GA 300 PM EDT TUE AUG 2 1990 COUNTY...... DEKALB COUNTY SOURCE...... FROM CHAMBLEE CITY POLICE OFFICE TIME........ 241 PM EDT...2 AUG 1990 LOCATION".... CHAMBLEE TYPE STORM.. SEVERE THUNDERSTORM...MARBLE SIZE HAIL.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 3:12 PM EDT | Severe Thunderstorm Warning | FFC | Screven | 48 min |
| Aug 2, 4:15 PM EDT | Severe Thunderstorm Warning | FFC | Newton | 60 min |
| Aug 2, 4:18 PM EDT | Severe Thunderstorm Warning | FFC | Jasper | 57 min |
| Aug 2, 4:47 PM EDT | Severe Thunderstorm Warning | FFC | Morgan | 58 min |
| Aug 2, 5:04 PM EDT | Severe Thunderstorm Warning | FFC | Jones | 56 min |
| Aug 2, 6:21 PM EDT | Severe Thunderstorm Warning | FFC | Baldwin | 69 min |
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.