Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 337, NWS Atlanta, GA

September 22, 20175 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Sep 22, 2017, 6:28 PM EDT for 5 counties in Georgia. It was in force for 32 min. 2 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
Sep 22, 2017, 6:28 PM EDT (22:28 UTC)
Expired
Sep 22, 2017, 7:00 PM EDT
In force
32 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bibb County, GA, Crawford County, GA, Houston County, GA, Peach County, GA, Twiggs County, GA

The radar

The Robins AFB radar (KJGX), 39 km from the middle of the area, began a volume at 22:27 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
Sep 22, 6:40 PM EDTTSTM WND DMG4 W Rogers Acres, GA2 TREES DOWN ON MARSHALL MILL RD NEAR POTTERY RD IN EASTERN CRAWFORD COUNTY
Sep 22, 7:08 PM EDTTSTM WND DMG3 Sw Friendship, GATREE DOWN ON WALTON RD NEAR UNION CHURCH RD IN SOUTHEASTERN CRAWFORD COUNTY

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, 10.5 hours before the alert went out and 98 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 2017-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 697 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 2017-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
697 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1144 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
5 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.

365 
WUUS52 KFFC 222228
SVRFFC
GAC021-079-153-225-289-222300-
/O.NEW.KFFC.SV.W.0337.170922T2228Z-170922T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
628 PM EDT FRI SEP 22 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Bibb County in central Georgia...
  Northwestern Twiggs County in central Georgia...
  Northeastern Peach County in central Georgia...
  Central Crawford County in central Georgia...
  North central Houston County in central Georgia...

* Until 700 PM EDT

* At 628 PM EDT, severe thunderstorms were located along a line
  extending from near Franklinton to near Lizella, moving southwest
  at 15 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...
  Macon, Roberta, Warner Robins, Centerville, Byron, Lake Tobesofkee,
  Jack Brown Estates, Rutland, Huber, Knoxville, Lizella, Skipperton,
  Elberta, Franklinton, Sandy Point, Horns and Middle Georgia
  Regional Airport.

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 3261 8406 3279 8398 3285 8384 3285 8353
      3284 8352 3285 8349 3263 8354
TIME...MOT...LOC 2228Z 036DEG 11KT 3277 8357 3275 8384 

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

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 8:11 PM EDTSpecial Weather StatementFFCCrisp, Dooly, Pulaski34 min
Sep 21, 9:12 PM EDTSpecial Weather StatementFFCDeKalb33 min
Sep 22, 2:34 PM EDTSpecial Weather StatementFFCLaurens26 min
Sep 22, 2:42 PM EDTSpecial Weather StatementFFCJohnson33 min
Sep 22, 3:08 PM EDTSpecial Weather StatementFFCJefferson37 min
Sep 22, 3:16 PM EDTSpecial Weather StatementFFCBleckley29 min
Sep 22, 3:17 PM EDTSpecial Weather StatementFFCJohnson43 min
Sep 22, 3:28 PM EDTSpecial Weather StatementFFCEmanuel47 min
Sep 22, 3:48 PM EDTSpecial Weather StatementFFCBleckley42 min
Sep 22, 4:50 PM EDTSpecial Weather StatementFFCPulaski25 min
Sep 22, 4:51 PM EDTSpecial Weather StatementFFCPulaski24 min
Sep 22, 4:55 PM EDTSpecial Weather StatementFFCEmanuel, Treutlen35 min
Sep 22, 4:59 PM EDTSpecial Weather StatementFFCJones, Monroe31 min
Sep 22, 5:29 PM EDTSpecial Weather StatementFFCLamar, Monroe31 min
Sep 22, 5:43 PM EDTSevere Thunderstorm WarningFFCMeriwether, Pike, Upson47 min
Sep 22, 5:48 PM EDTSpecial Weather StatementFFCBibb27 min
Sep 22, 5:49 PM EDTSpecial Weather StatementFFCWilcox26 min
Sep 22, 6:01 PM EDTSevere Thunderstorm WarningFFCBibb, Twiggs29 min
Sep 22, 6:14 PM EDTSevere Thunderstorm WarningFFCTalbot, Upson31 min
Sep 22, 6:20 PM EDTSpecial Weather StatementFFCTelfair25 min
Sep 22, 6:32 PM EDTSpecial Weather StatementFFCMeriwether, Troup28 min
Sep 22, 6:39 PM EDTSpecial Weather StatementFFCTalbot36 min
Sep 22, 6:57 PM EDTSevere Thunderstorm WarningFFCCrawford, Macon, Peach, Taylor33 min
Sep 22, 7:34 PM EDTSevere Thunderstorm WarningFFCMacon, Taylor26 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.