Alert archive / Georgia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 114, NWS Atlanta, GA

May 20, 2000Polk County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 20, 2000, 4:31 PM EDT for Polk County, Georgia. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 20, 2000, 4:31 PM EDT (20:31 UTC)
Expired: May 20, 2000, 5:00 PM EDT
In force: 29 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Polk County, GA

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 20, 4:30 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 100 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: 143 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 905 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 3 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.

000 
WUUS52 KFFC 202031
SVRATL
GAC233-202100-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
431 PM EDT SAT MAY 20 2000

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  POLK COUNTY IN NORTHWEST GEORGIA

* UNTIL 500 PM EDT

* AT 431 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES WEST OF CEDARTOWN...MOVING EDAST AT 20
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE ROCKMART AND ARAGON

LAT...LON 3408 8541 3391 8533 3396 8499 3410 8503

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 4:27 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	33 min
May 20, 4:47 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	28 min
May 20, 5:03 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Polk	27 min
May 20, 5:28 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	32 min
May 20, 5:42 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	48 min
May 20, 6:55 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer	35 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2000 Every severe thunderstorm warning in 2000

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.