Alert archive / Georgia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 109, NWS Atlanta, GA

May 28, 2001Forsyth County, Hall County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 28, 2001, 9:57 PM EDT for Forsyth County, Hall 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 28, 2001, 9:57 PM EDT (01:57 UTC)
Expired: May 28, 2001, 10:30 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Forsyth County, GA, Hall County, GA

The radar

The Atlanta radar (KFFC), 111 km from the middle of the area, began a volume at 01:58 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
May 28, 8:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 2.0 hours before the alert went out and 108 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: 764 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 1141 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 290157
SVRATL
GAC117-139-290230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
957 PM EDT MON MAY 28 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN FORSYTH COUNTY IN NORTH CENTRAL GEORGIA
  WESTERN HALL COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 1030 PM EDT

* AT 956 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER LAKE LANIER IN EAST CENTRAL FORSYTH 
  COUNTY...MOVING EAST AT 25 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...FLOWERY BRANCH...
  LAKE LANIER...CANDLER...OAKWOOD AND CHESTNUT MOUNTAIN.

INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS AND STAY
AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES.

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

LAT...LON 3432 8409 3419 8415 3423 8389 3432 8392

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 8:11 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	34 min
May 28, 8:31 PM EDT	Tornado Warning	FFC	Cherokee	29 min
May 28, 8:52 PM EDT	Severe Thunderstorm Warning	FFC	Bartow	23 min
May 28, 9:15 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	30 min
May 28, 9:22 PM EDT	Severe Thunderstorm Warning	FFC	Forsyth	23 min
May 28, 10:30 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	30 min
May 28, 10:37 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Henry	23 min
May 28, 10:58 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	32 min
May 29, 7:42 AM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Laurens, Twiggs	33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.