Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 245, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 23, 1990, 5:55 PM EDT for Rockdale County, Georgia. It was in force for 50 min. 1 report 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
- Jul 23, 1990, 5:55 PM EDT (21:55 UTC)
- Expired
- Jul 23, 1990, 6:45 PM EDT
- In force
- 50 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Rockdale 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 |
|---|---|---|---|
| Jul 23, 6:10 PM EDT | Thunderstorm Wind 0 | Rockdale, 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, 9.9 hours before the alert went out and 75 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
- 1687 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 3 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 232155 SVRATL GAC247-232245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 555 PM EDT MON JUL 23 1990 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 645 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...ROCKDALE COUNTY AT 552 PM...A SEVERE THUNDERSTORM WAS LOCATED IN EASTERN DEKALB COUNTY NEAR LITHONIA MOVING EAST AT 25 MPH. THIS STORM WILL MOVE INTO ROCKDALE COUNTY BY 610 PM. THIS STORM HAS PRODUCED MARBLE TO GOLFBALL SIZE HAIL WITHIN THE PAST HOUR. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR 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, Jul 23, 3:16 PM EDT, 2 hours 39 minutes before
GAZ006-008-009-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 315 PM EDT MON JUL 23 1990 ......THUNDERSTORMS MOVING INTO CENTRAL GEORGIA..... AT 310 PM WEATHER RADAR IN MACON SHOWED STRONG THUNDERSTORMS MOVING ACROSS CENTRAL GEORGIA. THE STRONGEST THUNDERSTORMS WERE LOCATED IN NORTH OF MONTICELLO IN JASPER COUNTY AND NEAR MILLEDGEVILLE IN BALDWIN COUNTY. MOVEMENT WAS EAST AT 20 MPH. HEAVY RAINFALL..GUSTY WINDS..DANGEROUSI CLOUD TO GROUND LIGHTNING AND HAIL MAY ACCOMPANY THESE THUNDERSTORMS THIS AFTERNOON. IF YOU ARE IN OR NEAR THE PATH OF THE THUNDERSTORMS MOVE INDOORS UNTIL THE STORMS PASS. REMEMBER LIGHTNING IS THE UNDER-RATED KILLER IN THUNDERSTORMS.
Special weather statement, Jul 23, 3:26 PM EDT, 2 hours 29 minutes before
GAZ001-003-232100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 330 PM EDT MON JUL 23 1990 AT 315 PM...RADAR SHOWED A LINE OF STRONG THUNDERSTORMS FROM NEAR ROME TO TALLAPOOSA IN HARALSON COUNTY TO NEAR BIRMINGHAM ALABAMA. THE STRONGEST STORMS WERE LOCATED JUST NORTHWEST OF CARTERSVILLE AND NEAR TALLAPOOSA. ELSEWHERE...STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF ATLANTA AND NEAR GRIFFIN AND WOODBURY. MOVEMEMT OF ALL STORMS WAS EAST AT 25 MPH. SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS NORTHWEST GEORGIA THROUGH THE REST OF THE AFTERNOON. THIS COULD POSSIBLY CREATE RUSH HOUR PROBLEMS...AS HEAVY RAIN REDUCING VISIBILITIES TO NEAR ZERO... STRONG GUSTY WINDS^...FREQUENT CLOUD TO GROUND LIGHTNING...AND POSSIBLY SOME HAIL WILL OCCUR WITH THESE STORMS. PERSONS LEAVING THE CITY OF ATLANTA BETWEEN 4 AND 6 PM SHOULD ALLOW EXTRA DRIVING TIME AS STORMS ARE EXPECTED TO SOON ENTER THE METRO AREA.
Special weather statement, Jul 23, 4:41 PM EDT, 1 hour 14 minutes before
GAZ006-008-009-232230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 440 PM EDT MON JUL 23 1990 AT 435 PM WEATHER RADAR IN MACON SHOWED A LARGE AREA OF SHOWERS AND STRONG THUNDERSTORMS MOVING ACROSS CENTRAL GEORGIA. THE STRONGEST THUNDERSTORMS WERE NOTED IN WILKINSON COUNTY NEAR MCINTYRE AND IN HOUSTON COUNTY BETWEEN PERRY AND WARNER ROBINS. MOVEMENT WAS EAST AT 20 MPH. HEAVY RAINFALL..GUSTY WINDS..DANGEROUS CLOUD TO GROUND LIGHTNING AND HAIL MAY ACCOMPANY THESE THUNDERSTORMS THIS AFTERNOON. IF YOU ARE IN OR NEAR THE PATH OF THE THUNDERSTORMS MOVE INDOORS UNTIL THE STORMS PASS. REMEMBER LIGHTNING IS THE UNDER-RATED KILLER IN THUNDERSTORMS.
Local storm report, Jul 23, 5:20 PM EDT, 35 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA, GA
520 PM EDT MON JUL 23 1990
COUNTY...... COBB
SOURCE...... COBB COUNTY POLICE
TIME........ ABOUT 450 PM EDT...23 JULY 90
LOCATION.... NEAR SPRING VALLEY AND SOUTH COBB DR. ALSO NEAR MOZELLE
STREET
TYPE STORM.. SEVERE THUNDERSTORM
DAMAGE/TREES..TREES AND POWER LINES DOWN.
ALSO NUMEROUS POWER OUTAGES AROUND COUNTY...ESPECIALLY
NEAR WINDY HILL...GAMLLERIA AREA.
ALSO DOBBINS AFB REPORTS 1/4 INCH HAIL...WIND GUSTS TO
35 KNOTS.
INJURIES.... NONE KNOWN
DEATHS...... NONE KNOWN
COSTS....... UNKNOWNLocal storm report, Jul 23, 5:28 PM EDT, 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA, GA
525 PM EDT MON JUL 23 1990
COUNTY...... DEKALB COUNTY
SOURCE...... HAM RADIO SPOTTER
TIME........ ABOUT 528 PM EDT...23 JULY 90
LOCATION.... SHeALLOWFORD ROAD NEAR I-85.
TYPE STORM.. SEVERE THUNDERSTORM...WINDS EST. 60-65 MPH...1/2 INCH
DIAMETER HAIL.Local storm report, Jul 23, 5:30 PM EDT, 25 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA, GA 525 PM EDT MON JUL 23 1990 COUNTY...... DEKALB COUNTY SOURCE...... FROM WAGA T.V. 5 TIME........ ABOUT 528 PM EDT...23 JULY 90 LOCATION.... CLAhIRMONT RD. NEAR I-85. TYPE STORM.. SEVERE THUNDERSTORM...GOLF BALL SIZE HAIL.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 8:27 PM EDT | Severe Thunderstorm Warning | FFC | Lumpkin, White | 63 min |
| Jul 22, 9:12 PM EDT | Severe Thunderstorm Warning | FFC | Habersham, Stephens | 63 min |
| Jul 23, 3:43 PM EDT | Severe Thunderstorm Warning | FFC | Butts, Spalding | 47 min |
| Jul 23, 4:10 PM EDT | Severe Thunderstorm Warning | FFC | Henry | 50 min |
| Jul 23, 4:38 PM EDT | Severe Thunderstorm Warning | FFC | Cobb | 52 min |
| Jul 23, 4:57 PM EDT | Severe Thunderstorm Warning | FFC | Coweta, Fayette | 48 min |
| Jul 23, 5:00 PM EDT | Severe Thunderstorm Warning | FFC | Fulton | 30 min |
| Jul 23, 5:26 PM EDT | Severe Thunderstorm Warning | FFC | DeKalb, Gwinnett | 49 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.