Alert archive / Georgia / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 127, NWS Atlanta, GA

June 5, 2007Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 5, 2007, 4:37 PM EDT for Gwinnett County, Georgia. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 5, 2007, 4:37 PM EDT (20:37 UTC)
Expired
Jun 5, 2007, 5:00 PM EDT
In force
23 min
Issued by
NWS Atlanta, GA
Area
Counties, with a storm outline in the text

County Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 69 km from the middle of the area, began a volume at 20:37 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.6 hours before the alert went out and 65 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 2007-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 88 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2007-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 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
88 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1340 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
43 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 052037
SVRFFC
GAC135-052100-
/O.NEW.KFFC.SV.W.0127.070605T2037Z-070605T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
437 PM EDT TUE JUN 5 2007

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA

* UNTIL 500 PM EDT

* AT 433 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZED HAIL.  THIS
  STORM WAS LOCATED NEAR MOUNTAIN PARK...MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SNELLVILLE.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT
UNTIL 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 3393 8424 3384 8418 3375 8403 3389 8395

$$


19
1 follow-up statement
000 
WWUS52 KFFC 052104
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
502 PM EDT TUE JUN 5 2007

GAC135-052112-
/O.EXP.KFFC.SV.W.0127.000000T0000Z-070605T2100Z/
GWINNETT GA-
502 PM EDT TUE JUN 5 2007

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GWINNETT COUNTY
EXPIRED AT 500 PM EDT...

AT 458 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT STRONG THUNDERSTORMS CONTINUED IN EXTREME SOUTHWEST GWINNETT 
COUNTY...SOUTHEAST OF MOUNTAIN PARK. VERY HEAVY RAIN AND FREQUENT 
CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED. PEA-SIZED HAIL AND WIND 
GUSTS TO 35 MPH WILL ALSO BE POSSIBLE. LIGHTNING IS ONE OF NATURES 
NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE 
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

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 3393 8424 3384 8418 3375 8403 3389 8395

$$


19

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 2:24 PM EDTSevere Thunderstorm WarningFFCTroup36 min
Jun 5, 2:28 PM EDTSevere Thunderstorm WarningFFCMeriwether32 min
Jun 5, 2:47 PM EDTSevere Thunderstorm WarningFFCHarris28 min
Jun 5, 2:49 PM EDTSevere Thunderstorm WarningFFCHenry, Spalding26 min
Jun 5, 3:07 PM EDTSevere Thunderstorm WarningFFCDodge, Laurens23 min
Jun 5, 3:32 PM EDTSevere Thunderstorm WarningFFCHouston28 min
Jun 5, 4:01 PM EDTSevere Thunderstorm WarningFFCLaurens44 min
Jun 5, 4:02 PM EDTSevere Thunderstorm WarningFFCHouston, Pulaski28 min
Jun 5, 4:04 PM EDTSevere Thunderstorm WarningFFCBarrow, Gwinnett26 min
Jun 5, 4:09 PM EDTSevere Thunderstorm WarningFFCFulton25 min
Jun 5, 4:20 PM EDTSevere Thunderstorm WarningFFCBleckley25 min
Jun 5, 4:24 PM EDTSevere Thunderstorm WarningFFCMacon51 min
Jun 5, 4:36 PM EDTSevere Thunderstorm WarningFFCSumter24 min
Jun 5, 4:49 PM EDTSevere Thunderstorm WarningFFCDeKalb26 min
Jun 5, 4:54 PM EDTSevere Thunderstorm WarningFFCCrisp, Dooly51 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2007Every severe thunderstorm warning in 2007

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.