Alert archive / Georgia / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 45, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at May 21, 1990, 3:48 PM EDT for Chattahoochee County, Muscogee County, Georgia. It was in force for 57 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
- May 21, 1990, 3:48 PM EDT (19:48 UTC)
- Expired
- May 21, 1990, 4:45 PM EDT
- In force
- 57 min
- Issued by
- NWS Tallahassee, FL
- Area
- Whole counties
Counties Chattahoochee County, GA, Muscogee 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 |
|---|---|---|---|
| May 21, 4:15 PM EDT | Thunderstorm Wind 0 | Muscogee, GA | |
| May 21, 4:30 PM EDT | Thunderstorm Wind 0 | Chattahoochee, 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, 7.8 hours before the alert went out and 221 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
- 1302 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 12 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 KCSG 211949 SVRCSG GAC053-215-212045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE COLUMBUS GA 348 PM EDT MON MAY 21 1990 THE NATIONAL WEATHER SERVICE IN COLUMBUS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL GEORGIA ...NORTHERN CHATTAHOOCHEE COUNTY...MUSCOGEE COUNTY AT 345 PM EDT WEATHER RADARS WERE SHOWING A SEVERE THUNDERSTORM MOVING INTO COLUMBUS GEORGIA BETWEEN COLUMBUS AND FT BENNING. THIS STORM WAS MOVING EAST AT 25 MILES AN 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.
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 2:41 PM EDT | Severe Thunderstorm Warning | TAE | Lee, Worth | 49 min |
| May 21, 4:30 PM EDT | Severe Thunderstorm Warning | TAE | Sumter | 60 min |
| May 21, 4:57 PM EDT | Tornado Warning | TAE | Sumter | 33 min |
| May 21, 5:51 PM EDT | Severe Thunderstorm Warning | TAE | Macon | 54 min |
| May 21, 6:47 PM EDT | Severe Thunderstorm Warning | TAE | Mitchell | 58 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.