Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 1, NWS Atlanta, GA

January 7, 1998Carroll County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 7, 1998, 3:17 PM EST for Carroll County, Georgia. It was in force for 33 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: Jan 7, 1998, 3:17 PM EST (20:17 UTC)
Expired: Jan 7, 1998, 3:50 PM EST
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Carroll County, GA

The radar

The Atlanta radar (KFFC), 54 km from the middle of the area, began a volume at 20:21 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.3 hours before the alert went out and 59 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 198 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KATL 072017
SVRATL
GAC045-072050-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
317 PM EST WED JAN 7 1998

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR
  CARROLL COUNTY - NORTHWESTERN GEORGIA

* UNTIL 350 PM EST

* SOME LOCATIONS IN THE PATH OF THIS STORM ARE...
   CARROLLTON                  AROUND 324 PM EST
   MOUNT ZION                  AROUND 326 PM EST
   JAKE                        AROUND 327 PM EST
   BOWDON JUNCTION             AROUND 325 PM EST

* AT 313 PM EST...  12 MILES SOUTHWEST OF CARROLLTON... A SEVERE
  THUNDERSTORM WAS INDICATED BY DOPPLER RADAR... MOVING NORTH 55
  MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD. IF YOU EXPERIENCE STORM DAMAGE TO
STRUCTURES OR TREES...OR HAIL THE SIZE OF DIMES OR LARGER...PLEASE
REPORT IT TO THE NATIONAL WEATHER SERVICE BY CALLING 770-486-8535.

MSS/TM

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, Jan 7, 2:30 PM EST, 47 minutes before

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
091>098-103>113-080400-

NORTH AND CENTRAL GEORGIA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
330 PM EDT WED JAN 07 1998

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTH
AND CENTRAL GEORGIA FOR THE REST OF THE AFTERNOON AND TONIGHT.

RAIN WITH EMBEDDED THUNDERSTORMS WILL CONTINUE TO SPREAD
EAST FROM ALABAMA INTO GEORGIA THIS AFTERNOON AND EVENING. SOME
OF THE STORMS MAY PRODUCE STRONG GUSTY WINDS...HEAVY DOWNPOURS
AND POSSIBLY HAIL.

SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL IN NORTH AND
CENTRAL GEORGIA SHOULD PREPARE FOR POSSIBLE ACTIVATION.

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 7, 3:24 PM EST	Severe Thunderstorm Warning	FFC	Chattooga, Floyd	31 min
Jan 7, 3:28 PM EST	Severe Thunderstorm Warning	FFC	Polk	32 min
Jan 7, 4:58 PM EST	Severe Thunderstorm Warning	FFC	Crawford	32 min
Jan 7, 5:15 PM EST	Severe Thunderstorm Warning	FFC	Monroe	30 min
Jan 7, 5:36 PM EST	Severe Thunderstorm Warning	FFC	Jasper, Jones	34 min
Jan 7, 5:52 PM EST	Severe Thunderstorm Warning	FFC	Bibb	33 min
Jan 7, 6:10 PM EST	Severe Thunderstorm Warning	FFC	Morgan, Putnam	30 min
Jan 7, 6:15 PM EST	Severe Thunderstorm Warning	FFC	Jones	30 min
Jan 7, 6:53 PM EST	Severe Thunderstorm Warning	FFC	Jones	27 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998 Every 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.