Alert archive / Georgia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 79, NWS Atlanta, GA

May 19, 2001DeKalb County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 19, 2001, 3:28 PM EDT for DeKalb County, Georgia. It was in force for 17 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: May 19, 2001, 3:28 PM EDT (19:28 UTC)
Expired: May 19, 2001, 3:45 PM EDT
In force: 17 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

County DeKalb County, GA

The radar

The Atlanta radar (KFFC), 59 km from the middle of the area, began a volume at 19:31 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.

What was reported inside it

Time	Report	Where	Remark
May 19, 3:37 PM EDT	Hail 0.75	Tucker, GA	The public reported dime size hail in Tucker and an amateur radio operator reported dime size hail on U. S. Highway 78 at Park Place east of Stone Mountain.

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.

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 19, 1:15 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.5 hours before the alert went out and 56 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: 471 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 966 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 15 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 191928
SVRATL
GAC089-191945-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
328 PM EDT SAT MAY 19 2001

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 345 PM EDT

* AT 325 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
A   SEVERE THUNDERSTORM LOCATED OVER TUCKER...MOVING EAST AT 20 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...TUCKER...
STONE MOUNTAIN...SCOTTDALE...PINE LAKE...NORTH DECATUR...DORAVILLE...
DECATUR...CLARKSTON...CHAMBLEE AND AVONDALE ESTATES.

LARGE HAIL...DAMAGING WINDS AND TORRENTIAL RAIN ARE EXPECTED WITH
THESE STORMS. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORMS
PASS.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL AFTER THE STORM HAS PASSED...AND THEN CALL THE NATION2AL WEATHER
SERVICE TOLL FREE AT 1 8 6 6 7 6 3 4 4 6 6.

LAT...LON 3392 8434 3373 8433 3379 8409 3394 8427

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 12:22 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Fulton, Gwinnett	23 min
May 19, 12:40 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth, Fulton, Gwinnett	35 min
May 19, 12:40 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Hall	35 min
May 19, 1:04 PM EDT	Severe Thunderstorm Warning	FFC	Jackson	26 min
May 19, 1:24 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Jackson	36 min
May 19, 1:24 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett, Walton	36 min
May 19, 1:48 PM EDT	Severe Thunderstorm Warning	FFC	Barrow, Clarke, Jackson, Madison, Oconee	42 min
May 19, 1:48 PM EDT	Severe Thunderstorm Warning	FFC	Morgan, Walton	42 min
May 19, 2:17 PM EDT	Severe Thunderstorm Warning	FFC	Carroll	28 min
May 19, 2:35 PM EDT	Severe Thunderstorm Warning	FFC	Floyd	25 min
May 19, 3:57 PM EDT	Severe Thunderstorm Warning	FFC	Rockdale	18 min
May 19, 4:05 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Monroe	25 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2001 Every severe thunderstorm warning in 2001

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; radar from the NEXRAD Level II archive.