Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 305, NWS Atlanta, GA

July 25, 2017Clayton County, Fayette County, Fulton County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 25, 2017, 5:08 PM EDT for Clayton County, Fayette County, Fulton County, Georgia. It was in force for 36 min. 3 reports 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 25, 2017, 5:08 PM EDT (21:08 UTC)
Expired
Jul 25, 2017, 5:44 PM EDT
In force
36 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clayton County, GA, Fayette County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 28 km from the middle of the area, began a volume at 21:09 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 25, 5:20 PM EDTTSTM WND DMG1 N Stonewall, GAA TREE BLOWN DOWN WAS REPORTED ON MASON RD NORTH OF UNION CITY
Jul 25, 5:44 PM EDTTSTM WND DMG1 Nnw Cottonwood, GAREPORT OF POWERLINES DOWN ON POPLAR WAY NORTH OF FAYETTEVILLE
Jul 25, 5:44 PM EDTTSTM WND DMGWellington Manor, GAREPORT OF POWERLINES DOWN ON GILBERT RD IN FAYETTEVILLE

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, 9.1 hours before the alert went out and 25 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 2017-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 756 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 2017-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
756 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
804 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

067 
WUUS52 KFFC 252108
SVRFFC
GAC063-113-121-252200-
/O.NEW.KFFC.SV.W.0305.170725T2108Z-170725T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
508 PM EDT TUE JUL 25 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northern Fayette County in north central Georgia...
  Clayton County in north central Georgia...
  South central Fulton County in north central Georgia...

* Until 600 PM EDT

* At 508 PM EDT, a severe thunderstorm was located over Riverdale, 
  moving southwest at 15 mph.

  HAZARD...60 mph wind gusts and penny size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Atlanta, Fayetteville, Jonesboro, Peachtree City, East Point, Union
  City, Forest Park, Riverdale, College Park, Fairburn, Tyrone,
  Morrow, Hapeville, Lake City, Hartsfield-Jackson Airport, Fort
  Gillem, Jw Smith Reservoir, Sandy Creek, Irondale and Conley.

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 3360 8464 3369 8440 3366 8436 3365 8435
      3365 8434 3361 8429 3339 8437 3344 8458
TIME...MOT...LOC 2108Z 040DEG 14KT 3360 8441 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
070 
WWUS52 KFFC 252144
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
544 PM EDT TUE JUL 25 2017

GAC063-113-121-252153-
/O.CAN.KFFC.SV.W.0305.000000T0000Z-170725T2200Z/
Fayette GA-Clayton GA-Fulton GA-
544 PM EDT TUE JUL 25 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN FAYETTE...CLAYTON AND
SOUTH CENTRAL FULTON COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe 
limits and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However, small hail, 
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 3360 8464 3369 8440 3366 8436 3365 8435
      3365 8434 3361 8429 3339 8437 3344 8458
TIME...MOT...LOC 2142Z 040DEG 14KT 3349 8452 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 10:04 PM EDTSpecial Weather StatementFFCTelfair26 min
Jul 25, 9:56 AM EDTSpecial Weather StatementFFCChattahoochee49 min
Jul 25, 10:37 AM EDTSpecial Weather StatementFFCMuscogee38 min
Jul 25, 10:55 AM EDTFlash Flood WarningFFCChattahoochee, Muscogee, Stewart6 hr
Jul 25, 11:38 AM EDTSpecial Weather StatementFFCMarion37 min
Jul 25, 12:32 PM EDTSpecial Weather StatementFFCSchley, Sumter, Webster58 min
Jul 25, 1:32 PM EDTSpecial Weather StatementFFCDooly, Macon, Sumter58 min
Jul 25, 3:14 PM EDTSpecial Weather StatementFFCGwinnett46 min
Jul 25, 3:42 PM EDTSpecial Weather StatementFFCDeKalb48 min
Jul 25, 3:45 PM EDTSpecial Weather StatementFFCDodge, Laurens45 min
Jul 25, 3:54 PM EDTSevere Thunderstorm WarningFFCDeKalb, Fulton19 min
Jul 25, 3:58 PM EDTSpecial Weather StatementFFCRockdale47 min
Jul 25, 4:19 PM EDTSpecial Weather StatementFFCDeKalb, Fulton41 min
Jul 25, 4:26 PM EDTSpecial Weather StatementFFCDodge, Johnson, Laurens49 min
Jul 25, 4:52 PM EDTSpecial Weather StatementFFCClayton38 min
Jul 25, 5:10 PM EDTSpecial Weather StatementFFCEmanuel50 min
Jul 25, 5:32 PM EDTSpecial Weather StatementFFCDouglas28 min
Jul 25, 5:46 PM EDTSpecial Weather StatementFFCFayette44 min
Jul 25, 5:51 PM EDTSpecial Weather StatementFFCEmanuel39 min
Jul 25, 6:00 PM EDTSpecial Weather StatementFFCDouglas45 min
Jul 25, 6:26 PM EDTSpecial Weather StatementFFCEmanuel, Jefferson49 min
Jul 25, 6:40 PM EDTSpecial Weather StatementFFCDouglas50 min
Jul 25, 6:47 PM EDTSevere Thunderstorm WarningFFCCarroll, Coweta, Douglas, Fulton43 min
Jul 25, 7:22 PM EDTSpecial Weather StatementFFCPolk23 min
Jul 25, 7:23 PM EDTSpecial Weather StatementFFCDouglas52 min
Jul 25, 7:28 PM EDTSpecial Weather StatementFFCCarroll47 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2017Every severe thunderstorm warning in 2017

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.