Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 310, NWS Atlanta, GA

July 26, 20175 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jul 26, 2017, 6:16 PM EDT for 5 counties in Georgia. It was in force for 44 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 26, 2017, 6:16 PM EDT (22:16 UTC)
Expired
Jul 26, 2017, 7:00 PM EDT
In force
44 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Butts County, GA, Henry County, GA, Jasper County, GA, Morgan County, GA, Newton County, GA

The radar

The Atlanta radar (KFFC), 62 km from the middle of the area, began a volume at 22:16 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 26, 6:30 PM EDTTSTM WND DMGStarrsville, GAREPORTS OF NUMEROUS TREES DOWN ON DIXIE RD AND ELKS CLUB RD
Jul 26, 6:50 PM EDTTSTM WND DMG1 Ese Worthville, GAREPORTS OF SEVERAL TREES DOWN ALONG HWY 36 INCLUDING MULTIPLE NEAR KEYS FERRY RD
Jul 26, 6:55 PM EDTTSTM WND DMG1 Wnw Malcolm Woods, GAREPORTS OF NUMEROUS TREES DOWN ON HWY 36 AND HWY 162

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, 10.3 hours before the alert went out and 56 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 2017-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 752 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 2017-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
752 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1155 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

623 
WUUS52 KFFC 262216
SVRFFC
GAC035-151-159-211-217-262300-
/O.NEW.KFFC.SV.W.0310.170726T2216Z-170726T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
616 PM EDT WED JUL 26 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Southwestern Morgan County in north central Georgia...
  Southeastern Henry County in north central Georgia...
  Northeastern Butts County in central Georgia...
  Jasper County in central Georgia...
  Newton County in north central Georgia...

* Until 700 PM EDT

* At 616 PM EDT, severe thunderstorms were located along a line
  extending from near Covington to Farrar, moving southwest at 20
  mph.

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

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  McDonough, Covington, Monticello, Oxford, Porterdale, Newborn,
  Mansfield, Shady Dale, Stewart, Ola, Turtle Cove, Worthville,
  Eudora, North Alcovy, McElheneys Crossroads, Fincherville, Oak
  Hill, Almon, Starrsville and Brick Store.

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 3345 8417 3353 8406 3354 8405 3353 8405
      3353 8404 3360 8398 3370 8385 3365 8376
      3364 8374 3345 8354 3318 8368
TIME...MOT...LOC 2216Z 022DEG 19KT 3362 8381 3346 8363 

HAIL...0.75IN
WIND...60MPH
 
$$
2 follow-up statements
787 
WWUS52 KFFC 262237
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
637 PM EDT WED JUL 26 2017

GAC211-262246-
/O.CAN.KFFC.SV.W.0310.000000T0000Z-170726T2300Z/
Morgan GA-
637 PM EDT WED JUL 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MORGAN COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3345 8417 3353 8406 3354 8405 3353 8405
      3353 8404 3360 8398 3370 8385 3361 8382
      3356 8375 3342 8362 3318 8368
TIME...MOT...LOC 2236Z 022DEG 19KT 3356 8384 3340 8366 

$$

GAC035-151-159-217-262300-
/O.CON.KFFC.SV.W.0310.000000T0000Z-170726T2300Z/
Henry GA-Butts GA-Jasper GA-Newton GA-
637 PM EDT WED JUL 26 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR SOUTHEASTERN HENRY...NORTHEASTERN BUTTS...CENTRAL JASPER AND
NEWTON COUNTIES...

At 636 PM EDT, severe thunderstorms were located along a line
extending from near Starrsville to near Calvin, moving south at 20
mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
McDonough, Covington, Monticello, Oxford, Porterdale, Newborn,
Mansfield, Stewart, Ola, Turtle Cove, Worthville, Almon, Starrsville,
Calvin, Eudora, North Alcovy, McElheneys Crossroads, Fincherville,
Adgateville and Oak Hill.

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 3345 8417 3353 8406 3354 8405 3353 8405
      3353 8404 3360 8398 3370 8385 3361 8382
      3356 8375 3342 8362 3318 8368
TIME...MOT...LOC 2236Z 022DEG 19KT 3356 8384 3340 8366 

HAIL...<.75IN
WIND...60MPH
 
$$
138 
WWUS52 KFFC 262252
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
652 PM EDT WED JUL 26 2017

GAC035-151-159-217-262301-
/O.EXP.KFFC.SV.W.0310.000000T0000Z-170726T2300Z/
Henry GA-Butts GA-Jasper GA-Newton GA-
652 PM EDT WED JUL 26 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HENRY...
NORTHEASTERN BUTTS...CENTRAL JASPER AND NEWTON COUNTIES WILL EXPIRE
AT 700 PM EDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.  However gusty winds
are still possible with these thunderstorms.

LAT...LON 3345 8417 3353 8406 3354 8405 3353 8405
      3353 8404 3360 8398 3370 8385 3361 8382
      3356 8375 3342 8362 3318 8368
TIME...MOT...LOC 2251Z 022DEG 19KT 3356 8384 3340 8366 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 2:15 PM EDTSpecial Weather StatementFFCBaldwin, Putnam30 min
Jul 26, 2:44 PM EDTSpecial Weather StatementFFCJones46 min
Jul 26, 3:33 PM EDTSpecial Weather StatementFFCBibb42 min
Jul 26, 3:48 PM EDTSpecial Weather StatementFFCGlascock42 min
Jul 26, 4:01 PM EDTSpecial Weather StatementFFCHancock, Warren44 min
Jul 26, 4:24 PM EDTSpecial Weather StatementFFCBibb, Peach51 min
Jul 26, 4:31 PM EDTSpecial Weather StatementFFCGlascock44 min
Jul 26, 4:44 PM EDTSevere Thunderstorm WarningFFCCrawford, Houston, Macon, Peach, Taylor, Twiggs46 min
Jul 26, 5:01 PM EDTSpecial Weather StatementFFCGlascock, Greene, Hancock, Jefferson, Taliaferro, Warren44 min
Jul 26, 5:07 PM EDTSevere Thunderstorm WarningFFCGreene, Hancock, Taliaferro38 min
Jul 26, 5:26 PM EDTSpecial Weather StatementFFCTaylor49 min
Jul 26, 5:31 PM EDTSevere Thunderstorm WarningFFCMorgan, Walton44 min
Jul 26, 6:48 PM EDTSpecial Weather StatementFFCSumter, Webster57 min
Jul 26, 7:02 PM EDTSpecial Weather StatementFFCButts43 min
Jul 26, 7:27 PM EDTSpecial Weather StatementFFCCherokee, Pickens48 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.