Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 153, NWS Atlanta, GA

June 30, 2016Gwinnett County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jun 30, 2016, 2:32 PM EDT for Gwinnett County, Georgia. It was in force for 28 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 30, 2016, 2:32 PM EDT (18:32 UTC)
Expired
Jun 30, 2016, 3:00 PM EDT
In force
28 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Gwinnett County, GA

The radar

The Atlanta radar (KFFC), 94 km from the middle of the area, began a volume at 18:34 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, 6.5 hours before the alert went out and 89 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 2016-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 54 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 2016-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
54 J/kg
Mixed-layer CIN
-213 J/kg
Mixed-layer LCL
1632 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

376 
WUUS52 KFFC 301832
SVRFFC
GAC135-301900-
/O.NEW.KFFC.SV.W.0153.160630T1832Z-160630T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
232 PM EDT THU JUN 30 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

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

* UNTIL 300 PM EDT

* AT 231 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  LAWRENCEVILLE...AND IS NEARLY STATIONARY.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  LAWRENCEVILLE...SUGAR
  HILL...SUWANEE...BUFORD...DACULA...GRAYSON...REST HAVEN AND HOG
  MOUNTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

IF YOU SEE WIND DAMAGE...HAIL OR 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 OR TWEET US YOUR REPORT AT NWSATLANTA.

&&

LAT...LON 3408 8384 3400 8387 3399 8385 3389 8395
      3395 8413 3414 8401
TIME...MOT...LOC 1831Z 307DEG 0KT 3398 8400 

HAIL...1.00IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 9:25 PM EDTSpecial Weather StatementFFCClarke, Jackson, Madison, Oconee, Walton35 min
Jun 29, 9:48 PM EDTSevere Thunderstorm WarningFFCWalton27 min
Jun 29, 10:09 PM EDTSevere Thunderstorm WarningFFCBarrow, Oconee, Walton36 min
Jun 29, 11:30 PM EDTSpecial Weather StatementFFCOconee45 min
Jun 29, 11:34 PM EDTSpecial Weather StatementFFCOglethorpe41 min
Jun 30, 12:36 AM EDTSpecial Weather StatementFFCJackson39 min
Jun 30, 2:11 PM EDTSpecial Weather StatementFFCTreutlen34 min
Jun 30, 2:13 PM EDTSpecial Weather StatementFFCStewart, Webster47 min
Jun 30, 2:15 PM EDTSpecial Weather StatementFFCGwinnett30 min
Jun 30, 2:56 PM EDTSpecial Weather StatementFFCTreutlen49 min
Jun 30, 3:00 PM EDTSpecial Weather StatementFFCStewart, Webster30 min
Jun 30, 3:31 PM EDTSpecial Weather StatementFFCDooly29 min
Jun 30, 3:47 PM EDTSpecial Weather StatementFFCPutnam28 min
Jun 30, 3:56 PM EDTSpecial Weather StatementFFCMacon34 min
Jun 30, 4:04 PM EDTSpecial Weather StatementFFCButts26 min
Jun 30, 4:29 PM EDTSpecial Weather StatementFFCRockdale31 min
Jun 30, 4:31 PM EDTSpecial Weather StatementFFCWalton29 min
Jun 30, 4:32 PM EDTSpecial Weather StatementFFCBibb28 min
Jun 30, 4:51 PM EDTSevere Thunderstorm WarningFFCButts, Lamar, Monroe39 min
Jun 30, 5:16 PM EDTSevere Thunderstorm WarningFFCJasper29 min
Jun 30, 5:29 PM EDTSpecial Weather StatementFFCMonroe31 min
Jun 30, 5:42 PM EDTSpecial Weather StatementFFCOconee33 min
Jun 30, 5:43 PM EDTSpecial Weather StatementFFCMorgan32 min
Jun 30, 5:45 PM EDTSevere Thunderstorm WarningFFCJasper, Putnam30 min
Jun 30, 5:53 PM EDTSevere Thunderstorm WarningFFCPutnam37 min
Jun 30, 5:57 PM EDTSpecial Weather StatementFFCMonroe33 min
Jun 30, 6:13 PM EDTSpecial Weather StatementFFCClarke, Morgan, Oconee32 min
Jun 30, 6:46 PM EDTSpecial Weather StatementFFCClarke, Madison29 min
Jun 30, 7:19 PM EDTSpecial Weather StatementFFCTaliaferro26 min
Jun 30, 7:23 PM EDTSpecial Weather StatementFFCLumpkin22 min
Jun 30, 7:31 PM EDTSpecial Weather StatementFFCClayton29 min
Jun 30, 7:58 PM EDTSpecial Weather StatementFFCLumpkin, White32 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2016Every severe thunderstorm warning in 2016

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.