Alert archive / Georgia / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 265, NWS Atlanta, GA

July 21, 20186 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 21, 2018, 8:42 PM EDT for 6 counties in Georgia. It was in force for 33 min. 10 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 21, 2018, 8:42 PM EDT (00:42 UTC)
Expired
Jul 21, 2018, 9:15 PM EDT
In force
33 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Barrow County, GA, Clarke County, GA, Jackson County, GA, Madison County, GA, Oconee County, GA, Oglethorpe County, GA

The radar

The Atlanta radar (KFFC), 115 km from the middle of the area, began a volume at 00:43 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 21, 8:42 PM EDTHAIL 17 W Athens, GA7 MILES WEST OF ATHENS
Jul 21, 8:45 PM EDTHAIL 11 Nne Beechwood Hills, GAQUARTER INCH HAIL WAS REPORTED NEAR THE INTERSECTION OF PRICE AVENUE AND SUNSET DRIVE.
Jul 21, 8:45 PM EDTHAIL 21 N Beechwood Hills, GAHEN EGG HAIL REPORTED NEAR THE INTERSECTION OF SUNSET DRIVE AND EDWARDS.
Jul 21, 8:50 PM EDTHAIL 1.751 N Athens, GAGOLF BALL HAIL REPORT ON SOCIAL MEDIA.
Jul 21, 8:52 PM EDTHAIL 1.251 Wsw Oconee Heights, GAHALF DOLLAR SIZED HAIL WAS REPORTED WITH SOMW LARGER STONES REPOTED, POSSIBLY UP TO TENNIS BALL SIZED.
Jul 21, 9:00 PM EDTTSTM WND DMG1 Sse Athens, GAPIECE OF SHEET METAL FLEW INTO THE ECOLOGY BUILDING AT THE UNIVERSITY OF GEORGIA. SEVERAL TREES WERE REPORTED DOWN IN THE AREA.
Jul 21, 9:05 PM EDTTSTM WND DMG1 E Athens, GAMULTIPLE TREES AND POWERLINES DOWNED ON THE EAST SIDE OF TOWN. TREES REPORTED ON 2 TO 3 HOMES. NO INURIES OR ENTRAPMENTS REPORTED.
Jul 21, 9:05 PM EDTTSTM WND DMGWinterville, GASEVERAL TREES AND LINES DOWNED IN WINTERVILLE. ONE OFF MOORES GROVE ROAD AND ANOTHER SOUTH OF THE CITY PARK ALONG WITH A COUPLE DOWN IN TOWN.
Jul 21, 9:10 PM EDTHAIL 1.51 Nnw Dunlap, GACITY HALL EMPLOYEE REPORTED THE HAIL AT THEIR HOME EAST OF WINTERVILLE.
Jul 21, 9:15 PM EDTHAIL 1.51 Nnw Dunlap, GACITY HALL EMPLOYEE REPORTED THE HAIL AT THEIR HOME EAST OF WINTERVILLE.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 21, 5:42 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 0.7 hours before the alert went out and 109 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 00:00Z on 2018-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2306 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 00:00Z on 2018-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.19395878Sfc1 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
2306 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
902 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

818 
WUUS52 KFFC 220042
SVRFFC
GAC013-059-157-195-219-221-220115-
/O.NEW.KFFC.SV.W.0265.180722T0042Z-180722T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
842 PM EDT SAT JUL 21 2018

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northern Oconee County in northeastern Georgia...
  Southeastern Barrow County in north central Georgia...
  Clarke County in northeastern Georgia...
  Southeastern Jackson County in northeastern Georgia...
  Northwestern Oglethorpe County in northeastern Georgia...
  Southwestern Madison County in northeastern Georgia...

* Until 915 PM EDT.

* At 842 PM EDT, a severe thunderstorm was located over Bogart, or 9
  miles west of Athens, moving east at 45 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Watkinsville, Athens, Statham, Winterville, Bogart, Colbert,
  Arnoldsville, Hull, Athens-Clarke County, Whitehall, Westgate Park,
  James Holland Youth Sports Cmpx, Bear Creek Reservoir, Diamond
  Hill, Beechwood Hills, Sandy Creek Recreation Area, Oconee Heights,
  Eastville, Barnett Shoals and Barretts Mill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

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 3383 8322 3386 8359 3388 8358 3388 8361
      3389 8363 3391 8364 3391 8365 3392 8365
      3400 8366 3408 8321
TIME...MOT...LOC 0042Z 265DEG 41KT 3395 8354 

HAIL...1.50IN
WIND...60MPH
 
$$
1 follow-up statement
961 
WWUS52 KFFC 220055
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
855 PM EDT SAT JUL 21 2018

GAC013-220104-
/O.CAN.KFFC.SV.W.0265.000000T0000Z-180722T0115Z/
Barrow GA-
855 PM EDT SAT JUL 21 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BARROW COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 200 AM EDT for
northeastern Georgia.

LAT...LON 3383 8322 3392 8353 3401 8354 3408 8321
TIME...MOT...LOC 0054Z 262DEG 24KT 3396 8343 

$$

GAC059-157-195-219-221-220115-
/O.CON.KFFC.SV.W.0265.000000T0000Z-180722T0115Z/
Oconee GA-Clarke GA-Jackson GA-Oglethorpe GA-Madison GA-
855 PM EDT SAT JUL 21 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHEASTERN OCONEE...CLARKE...SOUTHEASTERN JACKSON...
NORTHWESTERN OGLETHORPE AND SOUTHWESTERN MADISON COUNTIES...

At 854 PM EDT, a severe thunderstorm was located over Beechwood
Hills, or near Athens, moving east at 30 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Athens, Winterville, Bogart, Colbert, Arnoldsville, Hull,
Athens-Clarke County, Whitehall, Westgate Park, James Holland Youth
Sports Cmpx, Bear Creek Reservoir, Diamond Hill, Beechwood Hills,
Sandy Creek Recreation Area, Oconee Heights, Barretts Mill, Dunlap
and State Botanical Garden Of Ga.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 3383 8322 3392 8353 3401 8354 3408 8321
TIME...MOT...LOC 0054Z 262DEG 24KT 3396 8343 

HAIL...1.50IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:03 PM EDTSpecial Weather StatementFFCMorgan27 min
Jul 21, 8:04 PM EDTSevere Thunderstorm WarningFFCBarrow, Gwinnett26 min
Jul 21, 8:22 PM EDTSevere Thunderstorm WarningFFCBarrow, Clarke, Jackson, Oconee, Walton23 min
Jul 21, 8:25 PM EDTSpecial Weather StatementFFCWhite35 min
Jul 21, 8:31 PM EDTSpecial Weather StatementFFCBartow, Paulding44 min
Jul 21, 8:34 PM EDTSpecial Weather StatementFFCGilmer26 min
Jul 21, 8:35 PM EDTSevere Thunderstorm WarningFFCBartow, Cherokee, Cobb, Paulding22 min
Jul 21, 8:49 PM EDTSpecial Weather StatementFFCStewart11 min
Jul 21, 8:51 PM EDTSpecial Weather StatementFFCCherokee, Forsyth24 min
Jul 21, 8:54 PM EDTSpecial Weather StatementFFCMorgan, Walton36 min
Jul 21, 9:01 PM EDTSevere Thunderstorm WarningFFCCherokee, Forsyth, Fulton, Gwinnett, Hall44 min
Jul 21, 9:11 PM EDTSevere Thunderstorm WarningFFCOglethorpe34 min
Jul 21, 10:25 PM EDTSpecial Weather StatementFFCBanks35 min
Jul 21, 11:13 PM EDTSpecial Weather StatementFFCWilkes32 min
Jul 21, 11:16 PM EDTSevere Thunderstorm WarningFFCOglethorpe, Wilkes29 min
Jul 21, 11:33 PM EDTSpecial Weather StatementFFCUpson27 min
Jul 21, 11:44 PM EDTSpecial Weather StatementFFCWilkes16 min
Jul 22, 12:43 AM EDTSpecial Weather StatementFFCMcDuffie17 min
Jul 22, 12:47 AM EDTSpecial Weather StatementFFCUpson28 min
Jul 22, 1:11 AM EDTSpecial Weather StatementFFCCrawford34 min
Jul 22, 1:21 AM EDTSevere Thunderstorm WarningFFCBibb, Crawford, Houston, Peach, Twiggs24 min
Jul 22, 1:46 AM EDTSpecial Weather StatementFFCBibb, Twiggs29 min
Jul 22, 2:01 AM EDTSpecial Weather StatementFFCPeach29 min
Jul 22, 4:16 AM EDTRiver Flood WarningFFCMurray, Whitfield21 hr
Jul 22, 1:49 PM EDTSpecial Weather StatementFFCTalbot26 min
Jul 22, 4:19 PM EDTSpecial Weather StatementFFCMarion, Schley26 min
Jul 22, 4:24 PM EDTSpecial Weather StatementFFCTreutlen36 min
Jul 22, 4:34 PM EDTSevere Thunderstorm WarningFFCBleckley, Dodge, Laurens, Twiggs, Wilkinson41 min
Jul 22, 4:56 PM EDTSpecial Weather StatementFFCPickens34 min
Jul 22, 5:01 PM EDTSevere Thunderstorm WarningFFCDodge, Laurens, Telfair, Wheeler44 min
Jul 22, 5:10 PM EDTSpecial Weather StatementFFCWilcox35 min
Jul 22, 5:16 PM EDTSpecial Weather StatementFFCBleckley29 min
Jul 22, 5:19 PM EDTSevere Thunderstorm WarningFFCDodge, Pulaski, Wilcox41 min
Jul 22, 5:29 PM EDTSpecial Weather StatementFFCTreutlen46 min
Jul 22, 5:35 PM EDTSpecial Weather StatementFFCCandler10 min
Jul 22, 5:38 PM EDTSpecial Weather StatementFFCMarion, Schley37 min
Jul 22, 5:39 PM EDTSevere Thunderstorm WarningFFCEmanuel21 min
Jul 22, 5:45 PM EDTSevere Thunderstorm WarningFFCDodge, Pulaski28 min
Jul 22, 5:47 PM EDTSpecial Weather StatementFFCWheeler28 min
Jul 22, 5:49 PM EDTSpecial Weather StatementFFCJohnson26 min
Jul 22, 5:55 PM EDTSpecial Weather StatementFFCWilkinson35 min
Jul 22, 5:57 PM EDTSpecial Weather StatementFFCBartow33 min
Jul 22, 6:04 PM EDTSpecial Weather StatementFFCHall26 min
Jul 22, 6:07 PM EDTSevere Thunderstorm WarningFFCBleckley, Houston, Pulaski, Twiggs38 min
Jul 22, 6:16 PM EDTSpecial Weather StatementFFCMarion29 min
Jul 22, 6:19 PM EDTSpecial Weather StatementFFCWilkinson26 min
Jul 22, 6:31 PM EDTSpecial Weather StatementFFCWashington29 min
Jul 22, 6:33 PM EDTSpecial Weather StatementFFCCrisp, Wilcox27 min
Jul 22, 6:35 PM EDTSpecial Weather StatementFFCBarrow25 min
Jul 22, 6:45 PM EDTSpecial Weather StatementFFCBanks30 min
Jul 22, 6:47 PM EDTSevere Thunderstorm WarningFFCJefferson, Washington43 min
Jul 22, 6:50 PM EDTSevere Thunderstorm WarningFFCBarrow, Gwinnett, Jackson28 min
Jul 22, 7:01 PM EDTSpecial Weather StatementFFCWilcox29 min
Jul 22, 7:07 PM EDTSpecial Weather StatementFFCMarion38 min
Jul 22, 7:15 PM EDTSevere Thunderstorm WarningFFCWilcox17 min
Jul 22, 7:20 PM EDTSpecial Weather StatementFFCMadison25 min
Jul 22, 7:40 PM EDTSpecial Weather StatementFFCClarke, Oglethorpe35 min
Jul 22, 7:49 PM EDTSevere Thunderstorm WarningFFCClarke, Jackson, Madison, Oconee, Oglethorpe41 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2018Every severe thunderstorm warning in 2018

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.