Alert archive / Georgia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 206, NWS Atlanta, GA

July 17, 20164 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 17, 2016, 7:32 PM EDT for 4 counties in Georgia. It was in force for 22 min. 1 report 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
Jul 17, 2016, 7:32 PM EDT (23:32 UTC)
Expired
Jul 17, 2016, 7:54 PM EDT
In force
22 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties DeKalb County, GA, Gwinnett County, GA, Rockdale County, GA, Walton County, GA

The radar

The Atlanta radar (KFFC), 72 km from the middle of the area, began a volume at 23:32 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
Jul 17, 7:35 PM EDTTSTM WND DMGRock Bridge, GAEMA REPORT OF A TREE DOWN ON POWERLINES AT THE 4400 BLOCK OF FORD PLACE IN SNELLVILLE. TIME ESTIMATED FROM RESPONSE TIME AND RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.5 hours before the alert went out and 67 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 2016-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 243 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 2016-07-17The 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
243 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
926 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

323 
WUUS52 KFFC 172332
SVRFFC
GAC089-135-247-297-180015-
/O.NEW.KFFC.SV.W.0206.160717T2332Z-160718T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
732 PM EDT SUN JUL 17 2016

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL WALTON COUNTY IN NORTH CENTRAL GEORGIA...
  SOUTHEASTERN GWINNETT COUNTY IN NORTH CENTRAL GEORGIA...
  NORTHEASTERN ROCKDALE COUNTY IN NORTH CENTRAL GEORGIA...
  SOUTHEASTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA...

* UNTIL 815 PM EDT

* AT 731 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LAKEVIEW
  ESTATES...MOVING NORTHEAST AT 10 MPH.

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

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CONYERS...SNELLVILLE...LILBURN...LOGANVILLE...GRAYSON...LITHONIA...
  LAKEVIEW ESTATES...MOUNTAIN PARK...MILSTEAD...BIG HAYNES CREEK
  PARK...REDAN AND ROSEBUD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

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 3390 8396 3382 8387 3374 8391 3362 8399
      3373 8416 3391 8415
TIME...MOT...LOC 2331Z 208DEG 7KT 3377 8406 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
487 
WWUS52 KFFC 172354
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
754 PM EDT SUN JUL 17 2016

GAC089-135-247-297-180003-
/O.CAN.KFFC.SV.W.0206.000000T0000Z-160718T0015Z/
WALTON GA-GWINNETT GA-ROCKDALE GA-DEKALB GA-
754 PM EDT SUN JUL 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL WALTON...
SOUTHEASTERN GWINNETT...NORTHEASTERN ROCKDALE AND SOUTHEASTERN DEKALB
COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER GUSTY WINDS AND
HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
PEACHTREE CITY.

LAT...LON 3390 8396 3382 8387 3374 8391 3362 8399
      3373 8416 3391 8415
TIME...MOT...LOC 2349Z 208DEG 7KT 3381 8403 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 8:06 PM EDTSpecial Weather StatementFFCBaldwin, Glascock, Hancock, Jasper, Jefferson, Putnam and 1 more54 min
Jul 16, 8:41 PM EDTSpecial Weather StatementFFCGlascock, Greene, Hancock, Jasper, Putnam, Taliaferro and 1 more64 min
Jul 16, 9:18 PM EDTSpecial Weather StatementFFCGreene, Morgan, Taliaferro42 min
Jul 17, 3:05 PM EDTSpecial Weather StatementFFCGordon40 min
Jul 17, 3:08 PM EDTSpecial Weather StatementFFCFloyd37 min
Jul 17, 3:17 PM EDTSpecial Weather StatementFFCDade, Walker43 min
Jul 17, 3:19 PM EDTSpecial Weather StatementFFCWhitfield41 min
Jul 17, 3:50 PM EDTSpecial Weather StatementFFCDawson, Lumpkin25 min
Jul 17, 3:59 PM EDTSpecial Weather StatementFFCPaulding31 min
Jul 17, 4:04 PM EDTSpecial Weather StatementFFCMurray41 min
Jul 17, 4:07 PM EDTSpecial Weather StatementFFCJohnson38 min
Jul 17, 4:27 PM EDTSpecial Weather StatementFFCToombs33 min
Jul 17, 4:39 PM EDTSpecial Weather StatementFFCMurray51 min
Jul 17, 4:42 PM EDTSpecial Weather StatementFFCEmanuel33 min
Jul 17, 4:46 PM EDTSpecial Weather StatementFFCFannin44 min
Jul 17, 5:00 PM EDTSpecial Weather StatementFFCGordon45 min
Jul 17, 5:01 PM EDTSpecial Weather StatementFFCMurray29 min
Jul 17, 5:12 PM EDTSpecial Weather StatementFFCTelfair33 min
Jul 17, 5:14 PM EDTSpecial Weather StatementFFCFannin31 min
Jul 17, 5:32 PM EDTSpecial Weather StatementFFCHall28 min
Jul 17, 5:59 PM EDTSpecial Weather StatementFFCDeKalb31 min
Jul 17, 6:02 PM EDTSpecial Weather StatementFFCHouston43 min
Jul 17, 6:03 PM EDTSpecial Weather StatementFFCForsyth42 min
Jul 17, 6:28 PM EDTSpecial Weather StatementFFCTreutlen32 min
Jul 17, 6:40 PM EDTSpecial Weather StatementFFCBleckley, Pulaski50 min
Jul 17, 6:43 PM EDTSpecial Weather StatementFFCTwiggs47 min
Jul 17, 6:57 PM EDTSpecial Weather StatementFFCGwinnett33 min
Jul 17, 7:09 PM EDTSpecial Weather StatementFFCNewton, Rockdale36 min
Jul 17, 7:20 PM EDTSpecial Weather StatementFFCPulaski40 min
Jul 17, 7:40 PM EDTSpecial Weather StatementFFCDodge50 min
Jul 17, 7:47 PM EDTSpecial Weather StatementFFCNewton43 min
Jul 17, 7:50 PM EDTSpecial Weather StatementFFCPulaski40 min
Jul 17, 7:52 PM EDTSpecial Weather StatementFFCHarris, Muscogee38 min
Jul 17, 7:56 PM EDTSpecial Weather StatementFFCGwinnett34 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.