Alert archive / Georgia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 240, NWS Atlanta, GA

July 12, 2000Lamar County, Monroe County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 12, 2000, 2:04 PM EDT for Lamar County, Monroe County, Georgia. It was in force for 26 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: Jul 12, 2000, 2:04 PM EDT (18:04 UTC)
Expired: Jul 12, 2000, 2:30 PM EDT
In force: 26 min
Issued by: NWS Atlanta, GA
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Lamar County, GA, Monroe County, GA

The radar

The Atlanta radar (KFFC), 55 km from the middle of the area, began a volume at 18:06 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
Jul 12, 2:30 PM EDT	Hail 0.75	Barnesville, GA	The public reported dime size hail near Barnesville.

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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.1 hours before the alert went out and 50 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: 778 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 1345 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 31 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 121805
SVRATL
GAC171-207-121830-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
204 PM EDT WED JUL 12 2000

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN MONROE COUNTY IN CENTRAL GEORGIA
  NORTHEASTERN LAMAR COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 230 PM EDT

* AT 200 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 16 MILES NORTHWEST OF FORSYTH...OR ABOUT 8
  MILES NORTH OF BARNESVILLE...MOVING SOUTHEAST AT 15 MPH.

* OTHER LOCATIONS IN THE PATH OF THIS STORM INCLUDE LIBERTY HILL...
  HIGH FALLS STATE PARK...BLOUNT...AND GOGGINS.

SEVERE THUNDERSTORM WINDS CAN BE AS DESTRUCTIVE AS A TORNADO. FOR
YOUR SAFETY...GO TO A SAFE PLACE IMMEDIATELY.

IF YOU SEE DAMAGE OR LARGE HAIL...CALL THE NATIONAL WEATHER SERVICE
AT 7 7 0 4 8 6 1 1 3 3 AT EXTENSION 2 0 4.

wLAT...LON 3310 8385 3321 8401 3321 8409 3317 8414
          3318 8423 3311 8423 3294 8401

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 8:51 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	39 min
Jul 12, 1:32 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Henry, Spalding	28 min
Jul 12, 1:32 PM EDT	Severe Thunderstorm Warning	FFC	Fayette	28 min
Jul 12, 1:57 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Twiggs	33 min
Jul 12, 2:11 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Henry, Spalding	34 min
Jul 12, 2:19 PM EDT	Severe Thunderstorm Warning	FFC	Laurens, Wilkinson	26 min
Jul 12, 2:27 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Twiggs	33 min
Jul 12, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Johnson, Laurens, Treutlen	40 min
Jul 12, 3:20 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel	40 min
Jul 12, 3:25 PM EDT	Severe Thunderstorm Warning	FFC	Dooly, Macon	50 min
Jul 12, 5:53 PM EDT	Severe Thunderstorm Warning	FFC	Walton	22 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.