Alert archive / Georgia / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 47, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Mar 20, 1998, 3:00 AM EST for Polk County, Georgia. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 20, 1998, 3:00 AM EST (08:00 UTC)
- Expired
- Mar 20, 1998, 3:30 AM EST
- In force
- 30 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Polk County, GA
The radar
The Atlanta radar (KFFC), 91 km from the middle of the area, began a volume at 08:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 20, 12:45 AM EST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.0 hours before the alert went out and 95 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
- 973 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
607 WUUS1 KATL 200802 RRA SVRATL GAC233-200830- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PEACHTREE CITY GA 300 AM EST FRI MAR 20 1998 THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 330 AM EST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST GEORGIA ...POLK COUNTY AT 259 AM EST...DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM 10 MILES SOUTHWEST OF CEDARTOWN MOVING TO THE NORTHEAST AT 45 MPH. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. BOATERS, GOLFERS, AND OTHERS INVOLVED IN OUTSIDE ACTIVITIES SHOULD SEEK SHELTER IMMEDIATELY.
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, Mar 19, 10:00 PM EST, 5 hours before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 091>098-103>113-200600- NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1000 PM EST THU MAR 19 1998 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHWEST GEORGIA TONIGHT. SEVERE THUNDERSTORMS OVER ALABAMA EARLIER THIS EVENING DROPPED DIME TO QUARTER SIZED HAIL. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EST OVER PORTIONS OF NORTH AND CENTRAL ALABAMA. THE ALABAMA COUNTIES IMMEDIATELY WEST OF DADE AND WALKER COUNTIES ARE INCLUDED IN THIS WATCH. ALTHOUGH THE AIR OVER GEORGIA IS MORE STABLE THAN THAT OVER ALABAMA ...SOME OF THESE THUNDERSTORMS COULD MOVE INTO NORTHWEST GEORGIA BETWEEN 11 PM AND MIDNIGHT. SPOTTERS AND LAW ENFORCEMENT AGENCIES IN NORTHWEST GEORGIA SHOULD MAKE PREPARATIONS FOR POSSIBLE SEVERE WEATHER WITHIN THE NEXT FEW HOURS.
Special weather statement, Mar 19, 10:00 PM EST, 5 hours before
GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 091>098-103>113-200600- NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1000 PM EST THU MAR 19 1998 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTHWEST GEORGIA TONIGHT. SEVERE THUNDERSTORMS OVER ALABAMA EARLIER THIS EVENING DROPPED DIME TO QUARTER SIZED HAIL. A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 AM EST OVER PORTIONS OF NORTH AND CENTRAL ALABAMA. THE ALABAMA COUNTIES IMMEDIATELY WEST OF DADE AND WALKER COUNTIES ARE INCLUDED IN THIS WATCH. ALTHOUGH THE AIR OVER GEORGIA IS MORE STABLE THAN THAT OVER ALABAMA ...SOME OF THESE THUNDERSTORMS COULD MOVE INTO NORTHWEST GEORGIA BETWEEN 11 PM AND MIDNIGHT. SPOTTERS AND LAW ENFORCEMENT AGENCIES IN NORTHWEST GEORGIA SHOULD MAKE PREPARATIONS FOR POSSIBLE SEVERE WEATHER WITHIN THE NEXT FEW HOURS.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 4:12 AM EST | Severe Thunderstorm Warning | FFC | Meriwether, Troup | 48 min |
| Mar 20, 6:46 AM EST | Severe Thunderstorm Warning | FFC | Hall | 14 min |
| Mar 20, 6:51 AM EST | Tornado Warning | FFC | White | 24 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1998Every severe thunderstorm warning in 1998
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; radar from the NEXRAD Level II archive.