Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 206, NWS Atlanta, GA

May 30, 2017Butts County, Henry County, Spalding County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at May 30, 2017, 4:45 PM EDT for Butts County, Henry County, Spalding County, Georgia. It was in force for 30 min. 5 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
May 30, 2017, 4:45 PM EDT (20:45 UTC)
Expired
May 30, 2017, 5:15 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Butts County, GA, Henry County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 42 km from the middle of the area, began a volume at 20:45 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
May 30, 4:45 PM EDTHAIL 11 Wsw Pleasant Grove, GAONE INCH HAIL WAS REPORTED NEAR THE INTERSECTION OF LANDSOWNE DRIVE AND MCDONOUGH ROAD.
May 30, 4:55 PM EDTTSTM WND DMG3 Wsw Mckibben, GATREE AND POWER LINES DOWN ON HIGHWAY 16 TO THE IMMEDIATE EAST OF THE INTERSECTION WITH I-75.
May 30, 4:55 PM EDTHAIL 1.253 Wsw Mckibben, GA1.25 INCH HAIL WAS REPORTED NEAR THE INTERSECTION OF HIGHWAY 16 AND JACKSON ROAD.
May 30, 5:07 PM EDTTSTM WND DMG2 Ne Mckibben, GAA TREE WAS REPORTED DOWN ON HIGH FALLS ROAD.
May 30, 5:15 PM EDTTSTM WND DMG1 Se Mckibben, GATREE BLOWN DOWN ALONG LEVI BARNES ROAD NEAR HIGH FALLS ROAD.

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, 8.8 hours before the alert went out and 36 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 2017-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 218 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 2017-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
218 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
1026 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

830 
WUUS52 KFFC 302045
SVRFFC
GAC035-151-255-302115-
/O.NEW.KFFC.SV.W.0206.170530T2045Z-170530T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
445 PM EDT TUE MAY 30 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northeastern Spalding County in west central Georgia...
  Southeastern Henry County in north central Georgia...
  Central Butts County in central Georgia...

* Until 515 PM EDT

* At 445 PM EDT, a severe thunderstorm was located over Walker Mill,
  or near Griffin, moving east at 30 mph.

  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. 

* Locations impacted include...
  Jackson, Locust Grove, Flovilla, Jenkinsburg, East Griffin,
  Towalaga, Luella, Walker Mill, McKibben and Indian Springs State
  Park.

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 3324 8424 3332 8426 3345 8399 3324 8390
TIME...MOT...LOC 2045Z 264DEG 24KT 3328 8418 

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

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:36 PM EDTSpecial Weather StatementFFCGilmer39 min
May 29, 8:45 PM EDTSpecial Weather StatementFFCPeach, Taylor60 min
May 29, 9:20 PM EDTSpecial Weather StatementFFCPaulding, Polk55 min
May 29, 10:15 PM EDTSpecial Weather StatementFFCCherokee, Cobb, Fulton, Paulding60 min
May 30, 11:58 AM EDTSpecial Weather StatementFFCBartow, Cherokee, Floyd47 min
May 30, 12:52 PM EDTSpecial Weather StatementFFCChattooga23 min
May 30, 1:17 PM EDTSpecial Weather StatementFFCChattooga28 min
May 30, 3:32 PM EDTSpecial Weather StatementFFCCarroll, Douglas28 min
May 30, 3:54 PM EDTSpecial Weather StatementFFCCarroll36 min
May 30, 4:30 PM EDTSpecial Weather StatementFFCHenry, Spalding30 min
May 30, 5:09 PM EDTSpecial Weather StatementFFCCrawford36 min
May 30, 5:15 PM EDTSevere Thunderstorm WarningFFCButts, Jasper, Monroe30 min
May 30, 5:32 PM EDTSpecial Weather StatementFFCJones28 min
May 30, 5:48 PM EDTSevere Thunderstorm WarningFFCBaldwin, Jasper, Jones, Putnam27 min
May 30, 6:15 PM EDTSpecial Weather StatementFFCBaldwin30 min
May 30, 6:45 PM EDTSpecial Weather StatementFFCWashington30 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.