Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 358, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Oct 4, 1990, 3:10 PM EDT for Twiggs County, Georgia. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- Oct 4, 1990, 3:10 PM EDT (19:10 UTC)
- Expired
- Oct 4, 1990, 4:15 PM EDT
- In force
- 65 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Twiggs 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
Athens Municipal, GA (KAHN), launched 12:00Z, 7.2 hours before the alert went out and 143 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
- 96 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 604 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 200 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 KMCN 041909 SVRMCN GAC289-042015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MACON GA 310 PM EDT THU OCT 4 1990 THE NATIONAL WEATHER SERVICE IN MACON GA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL GEORGIA ...TWIGGS COUNTY AT 307 PM WEATHER RADAR IN MACON SHOWED A SEVERE THUNDERSTORM EAST OF MACON IN TWIGGS COUNTY. THIS THUNDERSTORM WAS MOVING EAST AT 40 MPH. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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, Oct 4, 11:33 AM EDT, 3 hours 37 minutes before
GAZ002-004-041625- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 1125 AM EDT THU OCT 4 1990 A LINE OF STRONG THUNDERSTORMS EXTENDS ACROSS NORTH GEORGIA FROM NEAR CARROLLTON TO NORTHWEST OF ATLANTA AND TO CLAYTON. THIS LINE OF STORMS WAS MOVING TO THE SOUTHEAST 30 MPH ACCOMPANIED BY HEAVY RAIN...GUSTY WINDS AND FREQUENT LIGHTNING. ELSEWHERE...SHOWERS AND A FEW THUNDERSTORMS WERE SCATTERED OVER NORTH GEORGIA AND THE WESTERN CAROLINAS. MOVEMENT EAS TO THE NORTHEAST 35 MPH.
Special weather statement, Oct 4, 12:07 PM EDT, 3 hours 3 minutes before
GAZ001-003-005-041730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 1206 PM EDT THU OCT 4 1990 AT NOON...WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS WITH VERY HEAVY RAIN IN NORTHWEST GEORGIA FROM NEAR CORNELIA TO NORTH ATLANTA TO NEAR LAGRANGE. THE THUNDERSTORMS WERE MOVING SOUTHEAST NEAR 30 MPH. VERY HEAVY RAIN...GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING...AND POSSIBLY SOME SMALL HAIL WILL OCCUR WITH THESE STORMS. RESIDENTS OF NORTHWEST GEORGIA ARE URGED TO BE PREPARED TO QUICK ACTION AND SEEK SAFE SHELTER AS THESE STORMS MOVE ACROSS THE AREA.
Special weather statement, Oct 4, 12:34 PM EDT, 2 hours 36 minutes before
GAZ002-004-041725- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 1225 PM EDT THU OCT 4 1990 A LINE OF STRONG THUNDERSTORMS CONTINUES TO MOVE SOUTHEAST ACROSS NORTH GEORGIA. THIS LINE EXTENDS FROM LAGRANGE TO ATLANTA AND TOCCOA AND THEN ACROSS THE WESTERN TIP OF SOUTH CAROLINA TO ASHEVILLE NORTH CAROLINA. THIS LINE OF THUNDERSTORMS WAS MOVING TO THE SOUTHEAST 30 MPH ACCOMPANIED BY HEAVY RAIN...GUSTY WINDS AND FREQUENT LIGHTNING. AT THE PRESENT RATE OF MOVEMENT...THE STORMS WILL BE IN THE ATHENS AREA SHORTLY AFTER 100 PM THIS AFTERNOON. ELSEWHERE...SHOWERS AND PATCHES OF RAIN WERE SCATTERED OVER THE NORTHERN HALF OF GEORGIA AND THE WESTERN CAROLINAS. MOVEMENT WAS TO THE NORTHEAST 35 MPH.
Special weather statement, Oct 4, 12:34 PM EDT, 2 hours 36 minutes before
GAZ005-ALZ011-041830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 1232 PM EDT THU OCT 4 1990 AT 1225 PM EDT...WEATHER SERVICE RADAR SHOWED A LINE OF THUNDERSTORMS MOVING THROUGH NORTHWEST GEORGIA SOUTHWEST THROUGH CENTRAL ALABAMA FROM NEAR LAGRANGE GEORGIA TO NEAR MONTGOMERY ALABAMA. THIS LINE IS MOVING SOUTHEAST AT 30 MILES AN HOUR AND WILL BE EFFEECTING EAST CENTRAL ALABAMA AND WEST CENTRAL GEORGIA THIS AFTERNOON. VERY HEAVY RAIN...GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING...AND POSSIBLY SOME SMALL HAIL WILL OCCUR WITH THESE STORMS. RESIDENTS OF EAST CENTRAL ALABAMA AND WEST CENTRAL GEORGIA ARE URGED TO BE PREPARED TO QUICK ACTION AND SEEK SAFE SHELTER AS THESE STORMS MOVE ACROSS THE AREA.
Special weather statement, Oct 4, 1:24 PM EDT, 1 hour 46 minutes before
GAZ006-041830- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 123 PM EDT THU OCT 4 1990 ...THUNDERSTORMS WITH VERY HEAVY RAIN APPROACHING CENTRAL GEORGIA... AT 120 PM EDT WEATHER SERVICE RADAR SHOWED AN AREA OF THUNDERSTORMS ...WITH VERY HEAVY RAIN...MOVING INTO CENTRAL GEORGIA. THE MAIN AREA OF THUNDERSTORMS WAS WEST OF A LINE THAT EXTENDED FROM NEAR TOCCOA IN NORTHEAST GEORGIA...THROUGH ATHENS...THEN SOUTHWEST TO NEAR BUTLER. SMALLER RAINSHOWERS HAVE DEVELOPED AHEAD OF THIS AREA. BE ALERT FOR GUSTY WINDS AND HEAVY RAIN AS THESE THUNDERSTORMS MOVE THROUGH CENTRAL GEORGIA DURING THE AFTERNOON HOURS. MOTORISTS SHOULD ESPECIALLY BE CAREFUL OF HEAVY RAINFALL AND SLICK HIGHWAYS. BOATERS ON AREA LAKES SHOULD STAY INFORMED ON THE LOCATION AND MOVEMENT OF THESE THUNDERSTORMS.
Special weather statement, Oct 4, 1:33 PM EDT, 1 hour 37 minutes before
GAZ002-004-041825- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE ATHENS GA 125 PM EDT THU OCT 4 1990 A LINE OF STRONG THUNDERSTORMS CONTINUES OVER NORTH GEORGIA AND WESTERN SOUTH CAROLINA. THIS LINE EXTENDS FROM COLUMBUS TO THE ATHENS AREA AND THEN TO NEAR ANDERSON AND GREENVILLE SOUTH CAROLINA. THIS LINE WAS MOVING TO THE SOUTHEAST 30 MPH ACCPMPANIED BY BRIEF HEAVY RAIN...GUSTY WINDS AND FREQUENT LIGHTNING. ELSEWHERE$...SHOWERS AND THUNDERSTORMS WERE SCATTERED OVER THE NORTHERN HALF OF GEORGIA AND THE WESTERN CAROLINAS. MOVEMENT WAS TO THE EAST 35 MPH.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 2:59 PM EDT | Severe Thunderstorm Warning | FFC | Houston | 46 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; the sounding from the Mesonet's radiosonde archive.