Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 320, NWS Atlanta, GA

August 31, 2017Houston County, Macon County, Peach County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Aug 31, 2017, 1:25 PM EDT for Houston County, Macon County, Peach County, Georgia. It was in force for 50 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
Aug 31, 2017, 1:25 PM EDT (17:25 UTC)
Expired
Aug 31, 2017, 2:15 PM EDT
In force
50 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Houston County, GA, Macon County, GA, Peach County, GA

The radar

The Robins AFB radar (KJGX), 30 km from the middle of the area, began a volume at 17:28 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
Aug 31, 1:32 PM EDTTSTM WND DMG1 Wsw Neal, GATREE REPORTED DOWN ON TOOMER RD NEAR INTERSECTION WITH GA-224.
Aug 31, 1:41 PM EDTTSTM WND DMGShady Grove, GATREE REPORTED DOWN ON POWERLINES ON JOHNSON COURT.
Aug 31, 1:50 PM EDTTSTM WND DMG1 Ene Warner Robins, GAPOWER LINES DOWN ON THE 200 BLOCK OF N PLEASANT HILL RD
Aug 31, 1:50 PM EDTTSTM WND DMGQuail Meadow, GAPOWER LINES DOWN ACROSS THE ROAD AT THE 100 BLOCK OF COVEY DRIVE.
Aug 31, 1:54 PM EDTTSTM WND DMGBonaire, GAPOWER LINES DOWN ON 100 BLOCK OF ALLEN WAY.

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, 5.4 hours before the alert went out and 120 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 2017-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 716 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 2017-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 square meters per square second.193958Sfc1 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
716 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
218 m²/s²
Significant tornado parameter
0.5
Supercell composite
5.4

Open this sounding in Storm Lab

The text

As transmitted.

255 
WUUS52 KFFC 311725
SVRFFC
GAC153-193-225-311815-
/O.NEW.KFFC.SV.W.0320.170831T1725Z-170831T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
125 PM EDT THU AUG 31 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northeastern Macon County in west central Georgia...
  Southeastern Peach County in central Georgia...
  Houston County in central Georgia...

* Until 215 PM EDT

* At 125 PM EDT, a severe thunderstorm was located over Saint Louis,
  or near Perry, moving northeast at 30 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Perry, Warner Robins, Centerville, Byron, Marshallville, Robins Air
  Force Base, Saint Louis, Meadowdale, Sand Bed, Houston Lake, Grove
  Park, Lakewood, Powerville, Moss Oak, Elberta, Bonaire, Miami
  Valley, Henderson and Kathleen.

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 3246 8397 3269 8369 3268 8367 3267 8363
      3266 8362 3266 8356 3263 8354 3261 8355
      3260 8354 3258 8354 3257 8355 3254 8354
      3253 8354 3250 8351 3230 8385
TIME...MOT...LOC 1725Z 229DEG 26KT 3244 8383 

HAIL...<.75IN
WIND...60MPH
 
$$
2 follow-up statements
685 
WWUS52 KFFC 311735
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
135 PM EDT THU AUG 31 2017

GAC193-311745-
/O.CAN.KFFC.SV.W.0320.000000T0000Z-170831T1815Z/
Macon GA-
135 PM EDT THU AUG 31 2017

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

LAT...LON 3238 8386 3238 8384 3247 8385 3249 8388
      3249 8392 3248 8392 3249 8393 3250 8392
      3269 8369 3266 8362 3266 8356 3263 8354
      3261 8355 3258 8354 3257 8355 3253 8354
      3250 8352 3230 8385
TIME...MOT...LOC 1735Z 232DEG 28KT 3248 8372 

$$

GAC153-225-311815-
/O.CON.KFFC.SV.W.0320.000000T0000Z-170831T1815Z/
Peach GA-Houston GA-
135 PM EDT THU AUG 31 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHEASTERN PEACH AND HOUSTON COUNTIES...

At 135 PM EDT, a severe thunderstorm was located over Perry, moving
northeast at 30 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Perry, Warner Robins, Centerville, Byron, Robins Air Force Base,
Meadowdale, Sand Bed, Houston Lake, Grove Park, Lakewood, Powerville,
Moss Oak, Elberta, Bonaire, Miami Valley, Henderson and Kathleen.

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 3238 8386 3238 8384 3247 8385 3249 8388
      3249 8392 3248 8392 3249 8393 3250 8392
      3269 8369 3266 8362 3266 8356 3263 8354
      3261 8355 3258 8354 3257 8355 3253 8354
      3250 8352 3230 8385
TIME...MOT...LOC 1735Z 232DEG 28KT 3248 8372 

HAIL...<.75IN
WIND...60MPH
 
$$
203 
WWUS52 KFFC 311746
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
146 PM EDT THU AUG 31 2017

GAC153-225-311815-
/O.CON.KFFC.SV.W.0320.000000T0000Z-170831T1815Z/
Peach GA-Houston GA-
146 PM EDT THU AUG 31 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHEASTERN PEACH AND CENTRAL HOUSTON COUNTIES...

At 146 PM EDT, a severe thunderstorm was located over Bonaire, or 7
miles northeast of Perry, moving northeast at 30 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Perry, Warner Robins, Centerville, Byron, Robins Air Force Base,
Meadowdale, Sand Bed, Houston Lake, Grove Park, Lakewood, Moss Oak,
Elberta, Bonaire, Miami Valley, Kathleen and Powerville.

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 3246 8379 3258 8382 3269 8369 3266 8362
      3266 8356 3263 8354 3261 8355 3258 8354
      3257 8355 3253 8354 3250 8352 3235 8376
TIME...MOT...LOC 1746Z 229DEG 26KT 3254 8364 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 12:26 PM EDTSpecial Weather StatementFFCSchley34 min
Aug 31, 12:46 PM EDTSpecial Weather StatementFFCSumter29 min
Aug 31, 12:51 PM EDTSpecial Weather StatementFFCMacon24 min
Aug 31, 1:02 PM EDTSevere Thunderstorm WarningFFCMacon28 min
Aug 31, 1:28 PM EDTSpecial Weather StatementFFCCrisp, Dooly, Pulaski47 min
Aug 31, 1:43 PM EDTSpecial Weather StatementFFCJones32 min
Aug 31, 1:59 PM EDTSpecial Weather StatementFFCTwiggs, Wilkinson46 min
Aug 31, 2:19 PM EDTSpecial Weather StatementFFCBleckley, Dodge, Wilcox26 min
Aug 31, 2:38 PM EDTSpecial Weather StatementFFCWarren37 min
Aug 31, 2:48 PM EDTSpecial Weather StatementFFCDodge, Laurens, Washington, Wilcox27 min
Aug 31, 3:23 PM EDTSpecial Weather StatementFFCTelfair37 min
Aug 31, 3:27 PM EDTSpecial Weather StatementFFCWarren33 min
Aug 31, 3:38 PM EDTWind AdvisoryFFCBartow, Carroll, Catoosa, Chattooga, Cherokee, Cobb and 18 more28 hr
Aug 31, 3:53 PM EDTSpecial Weather StatementFFCMontgomery, Wheeler37 min
Aug 31, 4:22 PM EDTSpecial Weather StatementFFCToombs23 min
Aug 31, 4:28 PM EDTSpecial Weather StatementFFCEmanuel32 min
Aug 31, 4:48 PM EDTSevere Thunderstorm WarningFFCToombs16 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.