Alert archive / Georgia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 69, NWS Atlanta, GA

May 19, 2001DeKalb County, Fulton County, Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 19, 2001, 12:22 PM EDT for DeKalb County, Fulton County, Gwinnett County, Georgia. It was in force for 23 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 19, 2001, 12:22 PM EDT (16:22 UTC)
Expired
May 19, 2001, 12:45 PM EDT
In force
23 min
Issued by
NWS Atlanta, GA
Area
Whole counties

Counties DeKalb County, GA, Fulton County, GA, Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 16:25 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

TimeReportWhereRemark
May 19, 12:27 PM EDTHail 1.75Alpharetta, GASeveral reports of hail were received from the public. Dime size hail was reported 3 miles north of Alpharetta and quarter to golf ball size hail was reported from the Roswell area.

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, 4.4 hours before the alert went out and 58 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2001-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 471 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2001-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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 191622
SVRATL
GAC089-121-135-191645-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1222 PM EDT SAT MAY 19 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  NORTHEASTERN FULTON COUNTY IN NORTH CENTRAL GEORGIA
  NORTHWESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 1245 PM EDT

* AT 1219 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER SANDY SPRINGS...MOVING EAST AT 20 MPH.

* LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...SUWANEE...
SANDY SPRINGS...ROSWELL...NORCROSS...DUNWOODY...DULUTH...BERKELEY
LAKE AND ALPHARETTA.

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 34q17 8406 3415 8409 3408 8427 3408 8440
          3401 8436 3391 8442 3390 8404 3411 8404
          3411 8411 3406 8411 3406 8416 3411 8423
          3415 8407

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 12:40 PM EDTSevere Thunderstorm WarningFFCForsyth, Fulton, Gwinnett35 min
May 19, 12:40 PM EDTSevere Thunderstorm WarningFFCBarrow, Hall35 min
May 19, 1:04 PM EDTSevere Thunderstorm WarningFFCJackson26 min
May 19, 1:24 PM EDTSevere Thunderstorm WarningFFCBarrow, Jackson36 min
May 19, 1:24 PM EDTSevere Thunderstorm WarningFFCGwinnett, Walton36 min
May 19, 1:48 PM EDTSevere Thunderstorm WarningFFCBarrow, Clarke, Jackson, Madison, Oconee42 min
May 19, 1:48 PM EDTSevere Thunderstorm WarningFFCMorgan, Walton42 min
May 19, 2:17 PM EDTSevere Thunderstorm WarningFFCCarroll28 min
May 19, 2:35 PM EDTSevere Thunderstorm WarningFFCFloyd25 min
May 19, 3:28 PM EDTSevere Thunderstorm WarningFFCDeKalb17 min
May 19, 3:57 PM EDTSevere Thunderstorm WarningFFCRockdale18 min
May 19, 4:05 PM EDTSevere Thunderstorm WarningFFCBibb, Monroe25 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2001Every 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.