Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 290, NWS Atlanta, GA

April 30, 1998Jefferson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Apr 30, 1998, 7:49 PM EDT for Jefferson County, Georgia. It was in force for 36 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: Apr 30, 1998, 7:49 PM EDT (23:49 UTC)
Expired: Apr 30, 1998, 8:25 PM EDT
In force: 36 min
Issued by: NWS Atlanta, GA
Area: Whole counties

County Jefferson County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.8 hours before the alert went out and 197 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 222 m²/s²
0-3 km storm-relative helicity: 242 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

584 
WUUS1 KATL 302351 RRA
SVRATL
GAC163-010025-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
749 PM EDT THU APR 30 1998

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JEFFERSON COUNTY IN EAST CENTRAL GEORGIA

* UNTIL 825 PM EDT

* AT 748 PM EDT... A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR  2 MILES EAST OF LOUISVILLE MOVING EAST AT 25 MPH.




WHEN THUNDERSTORMS ARE OCCURRING...LIGHTNING POSES A SERIOUS
DANGER. STAY INDOORS AND AWAY FROM WINDOWS. DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY. IF BOATING OR
SWIMMING...GET TO LAND QUICKLY AND FIND SHELTER. IF IN THE OPEN
FIND A LOW SPOT AWAY FROM TREES...FENCES...AND POLES. 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.

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

Local storm report, Apr 30, 6:36 PM EDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
636 PM EDT THU APR 30 1998

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

550 PM     BONAIRE                   GA   SEVERAL TREES DOWN AND POWER
4/30/98    HOUSTON                        OUTAGE IN BONAIRE REPORTED
                                          BY HOUSTON COUNTY 911

600 PM     10S MONTEZUMA             GA   1.75 inch hail
4/30/98    MACON                          PUBLIC REPORTS GOLFBALL SIZE
                                          HAIL AND LARGE OAK TREE DOWN

625 PM     FIVE POUNTS               GA   0.75 inch hail
4/30/98    MACON                          DIME SIZE HAIL IN FIVE
                                          POINTS REPORTED BY MACON
                                          COUNTY EMA

NM

Local storm report, Apr 30, 6:36 PM EDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
636 PM EDT THU APR 30 1998

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

550 PM     BONAIRE                   GA   SEVERAL TREES DOWN AND POWER
4/30/98    HOUSTON                        OUTAGE IN BONAIRE REPORTED
                                          BY HOUSTON COUNTY 911

600 PM     10S MONTEZUMA             GA   1.75 inch hail
4/30/98    MACON                          PUBLIC REPORTS GOLFBALL SIZE
                                          HAIL AND LARGE OAK TREE DOWN

625 PM     FIVE POUNTS               GA   0.75 inch hail
4/30/98    MACON                          DIME SIZE HAIL IN FIVE
                                          POINTS REPORTED BY MACON
                                          COUNTY EMA

NM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 5:32 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Houston	33 min
Apr 30, 6:03 PM EDT	Severe Thunderstorm Warning	FFC	Wilkinson	37 min
Apr 30, 6:22 PM EDT	Severe Thunderstorm Warning	FFC	Macon, Peach	33 min
Apr 30, 7:02 PM EDT	Severe Thunderstorm Warning	FFC	Washington	48 min
Apr 30, 7:10 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Macon, Peach	50 min
Apr 30, 7:16 PM EDT	Severe Thunderstorm Warning	FFC	Bibb	49 min
Apr 30, 7:21 PM EDT	Severe Thunderstorm Warning	FFC	Twiggs	49 min
Apr 30, 7:58 PM EDT	Severe Thunderstorm Warning	FFC	Jones	52 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.