Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 15, NWS Atlanta, GA

January 21, 2017Bibb County, Crawford County, Monroe County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 21, 2017, 11:50 AM EST for Bibb County, Crawford County, Monroe County, Georgia. It was in force for 25 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: Jan 21, 2017, 11:50 AM EST (16:50 UTC)
Expired: Jan 21, 2017, 12:15 PM EST
In force: 25 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Bibb County, GA, Crawford County, GA, Monroe County, GA

The radar

The Robins AFB radar (KJGX), 67 km from the middle of the area, began a volume at 16:52 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

Time	Report	Where	Remark
Jan 21, 12:05 PM EST	TORNADO	Smarr, GA	TORNADIC DAMAGE WAS LOCATED IN SMARR. MULTPILE TREES DOWN AND ALSO SNAPPED.
Jan 21, 12:08 PM EST	TORNADO	5 Nne Moran, GA	TORNADIC DAMAGE WAS LOCATED IN SMARR. MULTIPLE TREES DOWN AND ALSO SNAPPED.

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.

Issued	Product	Office	Lasted
Jan 21, 9:04 AM EST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 4.8 hours before the alert went out and 68 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 388 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 536 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

320 
WUUS52 KFFC 211650
SVRFFC
GAC021-079-207-211715-
/O.NEW.KFFC.SV.W.0015.170121T1650Z-170121T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
1150 AM EST SAT JAN 21 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  Northwestern Bibb County in central Georgia...
  Southern Monroe County in central Georgia...
  North central Crawford County in central Georgia...

* Until 1215 PM EST

* At 1149 AM EST, a severe thunderstorm was located over Musella, or
  8 miles north of Roberta, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Forsyth, Culloden, Russellville, Brent, Bolingbroke and Musella. 

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.

&&

A tornado watch remains in effect until 300 PM EST for central and
west central Georgia.

LAT...LON 3285 8413 3288 8412 3293 8407 3293 8405
      3295 8405 3295 8404 3296 8404 3308 8391
      3300 8375 3289 8370 3276 8405
TIME...MOT...LOC 1649Z 240DEG 34KT 3284 8405 

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

1 follow-up statement

537 
WWUS52 KFFC 211708
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
1208 PM EST SAT JAN 21 2017

GAC079-211718-
/O.CAN.KFFC.SV.W.0015.000000T0000Z-170121T1715Z/
Crawford GA-
1208 PM EST SAT JAN 21 2017

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

A tornado watch remains in effect until 300 PM EST for central and
west central Georgia.

LAT...LON 3293 8407 3293 8405 3295 8405 3295 8404
      3296 8404 3308 8391 3300 8375 3289 8370
      3285 8397 3286 8398 3285 8398
TIME...MOT...LOC 1708Z 240DEG 34KT 3293 8386 

$$

GAC021-207-211715-
/O.CON.KFFC.SV.W.0015.000000T0000Z-170121T1715Z/
Bibb GA-Monroe GA-
1208 PM EST SAT JAN 21 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EST
FOR NORTHWESTERN BIBB AND SOUTHERN MONROE COUNTIES...

At 1208 PM EST, a severe thunderstorm was located near Bolingbroke,
or 8 miles southeast of Forsyth, moving northeast at 40 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Forsyth, Russellville, Brent and Bolingbroke. 

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.

&&

A tornado watch remains in effect until 300 PM EST for central and
west central Georgia.

LAT...LON 3293 8407 3293 8405 3295 8405 3295 8404
      3296 8404 3308 8391 3300 8375 3289 8370
      3285 8397 3286 8398 3285 8398
TIME...MOT...LOC 1708Z 240DEG 34KT 3293 8386 

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

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 21, 7:52 AM EST	Special Weather Statement	FFC	Heard, Troup	38 min
Jan 21, 8:28 AM EST	Special Weather Statement	FFC	Troup	32 min
Jan 21, 8:33 AM EST	Tornado Warning	FFC	Troup	27 min
Jan 21, 8:55 AM EST	Severe Thunderstorm Warning	FFC	Meriwether, Troup	35 min
Jan 21, 9:23 AM EST	Special Weather Statement	FFC	Coweta	37 min
Jan 21, 10:04 AM EST	Special Weather Statement	FFC	Coweta, Fayette, Troup	56 min
Jan 21, 10:14 AM EST	Severe Thunderstorm Warning	FFC	Harris, Muscogee	46 min
Jan 21, 10:22 AM EST	Special Weather Statement	FFC	Chattahoochee, Stewart	38 min
Jan 21, 10:35 AM EST	Tornado Warning	FFC	Harris, Muscogee, Talbot	25 min
Jan 21, 11:00 AM EST	Severe Thunderstorm Warning	FFC	Talbot, Upson	30 min
Jan 21, 11:01 AM EST	Special Weather Statement	FFC	Coweta, Fayette, Heard, Troup	59 min
Jan 21, 11:10 AM EST	Tornado Warning	FFC	Meriwether, Talbot, Upson	32 min
Jan 21, 11:16 AM EST	Severe Thunderstorm Warning	FFC	Taylor	29 min
Jan 21, 11:26 AM EST	Tornado Warning Tornado observed	FFC	Crawford, Taylor, Upson	34 min
Jan 21, 11:36 AM EST	Special Weather Statement	FFC	Coweta, Fayette	39 min
Jan 21, 11:39 AM EST	Severe Thunderstorm Warning	FFC	Lamar, Pike, Upson	36 min
Jan 21, 11:46 AM EST	Special Weather Statement	FFC	Macon, Peach, Schley, Sumter	44 min
Jan 21, 11:56 AM EST	Tornado Warning	FFC	Lamar	14 min
Jan 21, 12:04 PM EST	Severe Thunderstorm Warning	FFC	Houston, Macon, Peach	26 min
Jan 21, 12:06 PM EST	Tornado Warning	FFC	Houston, Macon, Peach	24 min
Jan 21, 12:10 PM EST	Special Weather Statement	FFC	Clayton, Fayette, Henry, Spalding	50 min
Jan 21, 12:13 PM EST	Tornado Warning Tornado observed	FFC	Monroe	15 min
Jan 21, 12:21 PM EST	Tornado Warning	FFC	Houston, Peach, Twiggs	24 min
Jan 21, 12:28 PM EST	River Flood Warning	FFC	DeKalb	24 hr
Jan 21, 12:28 PM EST	River Flood Warning	FFC	Gwinnett	24 hr
Jan 21, 12:42 PM EST	Severe Thunderstorm Warning	FFC	Bleckley, Dodge, Laurens, Pulaski, Twiggs	33 min
Jan 21, 12:43 PM EST	Tornado Warning	FFC	Twiggs, Wilkinson	32 min
Jan 21, 12:53 PM EST	Severe Thunderstorm Warning	FFC	Bleckley, Crisp, Dodge, Dooly, Laurens, Pulaski and 1 more	52 min
Jan 21, 12:57 PM EST	Tornado Warning	FFC	Bleckley, Laurens	33 min
Jan 21, 1:05 PM EST	Severe Thunderstorm Warning	FFC	Johnson, Laurens, Washington, Wilkinson	40 min
Jan 21, 1:11 PM EST	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Washington, Wilkinson	49 min
Jan 21, 1:24 PM EST	Severe Thunderstorm Warning	FFC	Emanuel, Johnson, Laurens, Treutlen	51 min
Jan 21, 1:24 PM EST	Tornado Warning	FFC	Johnson, Laurens	36 min
Jan 21, 1:27 PM EST	Tornado Warning	FFC	Baldwin, Hancock, Washington	34 min
Jan 21, 1:31 PM EST	Severe Thunderstorm Warning	FFC	Emanuel, Laurens, Montgomery, Telfair, Toombs, Treutlen and 1 more	44 min
Jan 21, 1:32 PM EST	Severe Thunderstorm Warning	FFC	Jefferson, Washington	43 min
Jan 21, 1:41 PM EST	Tornado Warning	FFC	Jefferson, Johnson	34 min
Jan 21, 2:12 PM EST	Severe Thunderstorm Warning	FFC	Emanuel, Montgomery, Telfair, Toombs, Treutlen, Wheeler	33 min
Jan 21, 2:14 PM EST	Severe Thunderstorm Warning	FFC	Jefferson	31 min
Jan 21, 2:26 PM EST	River Flood Warning	FFC	DeKalb	24 hr
Jan 21, 3:46 PM EST	River Flood Warning	FFC	Gwinnett	24 hr
Jan 21, 3:46 PM EST	River Flood Warning	FFC	Forsyth, Fulton	64 hr
Jan 21, 5:39 PM EST	River Flood Warning	FFC	Gwinnett, Walton	24 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2017 Every 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.