Alert archive / Georgia / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 127, NWS Atlanta, GA

May 13, 20024 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 13, 2002, 4:23 PM EDT for 4 counties in Georgia. It was in force for 37 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 13, 2002, 4:23 PM EDT (20:23 UTC)
Expired: May 13, 2002, 5:00 PM EDT
In force: 37 min
Issued by: NWS Atlanta, GA
Area: Counties, with a storm outline in the text

Counties Clarke County, GA, Madison County, GA, Oconee County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 126 km from the middle of the area, began a volume at 20:22 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 13, 4:35 PM EDT	Thunderstorm Wind	Athens, GA	The Athens police reported that two trees were blown down in the city.
May 13, 4:35 PM EDT	Thunderstorm Wind	Watkinsville, GA	The Oconee county 911 center reported that trees were blown down on Bellmount Road.
May 13, 4:45 PM EDT	Thunderstorm Wind	Danielsville, GA	The Madison county 911 center reported that numerous trees were down in the city along with some power lines.

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 13, 1:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.4 hours before the alert went out and 120 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: 397 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 694 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 80 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KFFC 132023 CCA
SVRATL
GAC059-195-219-297-132100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
419 PM EDT MON MAY 13 2002

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WALTON COUNTY IN NORTH CENTRAL GEORGIA
  CLARKE COUNTY IN NORTHEAST GEORGIA
  MADISON COUNTY IN NORTHEAST GEORGIA
  OCONEE COUNTY IN NORTHEAST GEORGIA

* UNTIL 500 PM EDT

* AT 417 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS PRODUCING WINDS UP TO 65 MPH
  LOCATED FROM 13 MILES NORTHEAST OF ILA TO WALNUT GROVE...MOVING
  EAST AT 55 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...ATHENS...
BETWEEN...BISHOP...BOGART...COLBERT...DANIELSVILLE...GAINES SCHOOL...
GOOD HOPE...HULL...ILA...JERSEY...LOGANVILLE...MONROE...NORTH HIGH
SHOALS...WALNUT GROVE...WATKINSVILLE AND WINTERVILLE.

DAMAGING WINDS MAY OCCUR UP TO 5 MILES AHEAD OF THE HEAVY RAIN
AND HAIL. MOVE TO A SAFE PLACE NOW

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 3409 8303 3404 8321 3394 8328 3383 8331
          3375 8329 3371 8340 3382 8351 3366 8371
          3379 8394 3391 8380 3391 8362 3407 8336
          3421 8337 3423 8308

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 1:31 PM EDT	Severe Thunderstorm Warning	FFC	Dade, Walker	44 min
May 13, 3:04 PM EDT	Severe Thunderstorm Warning	FFC	Cherokee	26 min
May 13, 3:09 PM EDT	Severe Thunderstorm Warning	FFC	Fannin, Gilmer, Lumpkin, Towns, Union	36 min
May 13, 3:23 PM EDT	Severe Thunderstorm Warning	FFC	Fulton	22 min
May 13, 3:24 PM EDT	Severe Thunderstorm Warning	FFC	Dawson, Forsyth, Hall	36 min
May 13, 3:27 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, Fulton	33 min
May 13, 3:37 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Gwinnett	38 min
May 13, 3:41 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Fayette	34 min
May 13, 3:44 PM EDT	Severe Thunderstorm Warning	FFC	DeKalb, Gwinnett	31 min
May 13, 3:46 PM EDT	Severe Thunderstorm Warning	FFC	Heard	29 min
May 13, 3:54 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Barrow, Jackson	36 min
May 13, 3:59 PM EDT	Severe Thunderstorm Warning	FFC	Banks, Barrow, Jackson	31 min
May 13, 4:20 PM EDT	Severe Thunderstorm Warning	FFC	Clarke, Madison, Oconee, Walton	40 min
May 13, 4:39 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe	36 min
May 13, 5:17 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe, Wilkes	28 min
May 13, 5:46 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Taliaferro	29 min
May 13, 5:56 PM EDT	Severe Thunderstorm Warning	FFC	Taylor	34 min
May 13, 6:10 PM EDT	Severe Thunderstorm Warning	FFC	Macon	35 min
May 13, 6:21 PM EDT	Severe Thunderstorm Warning	FFC	Taliaferro, Warren	24 min
May 13, 6:31 PM EDT	Severe Thunderstorm Warning	FFC	Macon	29 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2002 Every severe thunderstorm warning in 2002

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.