Alert archive / Georgia / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 4, NWS Atlanta, GA

January 2, 2017Marion County, Talbot County, Taylor County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Jan 2, 2017, 7:29 PM EST for Marion County, Talbot County, Taylor County, Georgia. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jan 2, 2017, 7:29 PM EST (00:29 UTC)
Expired: Jan 2, 2017, 7:45 PM EST
In force: 16 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Marion County, GA, Talbot County, GA, Taylor County, GA

The radar

The Atlanta radar (KFFC), 93 km from the middle of the area, began a volume at 00:28 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.

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 2, 4:46 PM EST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.5 hours before the alert went out and 239 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: 202 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 638 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 138 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

233 
WUUS52 KFFC 030029
SVRFFC
GAC197-263-269-030115-
/O.NEW.KFFC.SV.W.0004.170103T0029Z-170103T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Peachtree City GA
729 PM EST MON JAN 2 2017

The National Weather Service in Peachtree City has issued a

* Severe Thunderstorm Warning for...
  West central Taylor County in west central Georgia...
  Northern Marion County in west central Georgia...
  Southwestern Talbot County in west central Georgia...

* Until 815 PM EST

* At 728 PM EST, a severe thunderstorm was located over Juniper, or
  13 miles south of Talbotton, moving northeast at 15 mph.

  HAZARD...60 mph wind gusts and possible tornado. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Talbotton, Junction City, Geneva, Olive Branch, Oakland, Marion
  Estates, Mauk, Box Springs, Juniper and Howard.

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 1100 PM EST for west central
Georgia.

LAT...LON 3245 8466 3249 8466 3249 8464 3253 8464
      3252 8469 3253 8468 3256 8467 3256 8469
      3261 8469 3271 8462 3256 8430 3239 8455
TIME...MOT...LOC 0028Z 204DEG 15KT 3250 8461 

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

1 follow-up statement

980 
WWUS52 KFFC 030045
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
745 PM EST MON JAN 2 2017

GAC197-263-269-030055-
/O.CAN.KFFC.SV.W.0004.000000T0000Z-170103T0115Z/
Taylor GA-Marion GA-Talbot GA-
745 PM EST MON JAN 2 2017

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL TAYLOR...NORTHERN
MARION AND SOUTHWESTERN TALBOT COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

A tornado watch remains in effect until 1100 PM EST for west central
Georgia.

LAT...LON 3245 8466 3249 8466 3249 8464 3253 8464
      3252 8469 3253 8468 3256 8467 3256 8469
      3261 8469 3271 8462 3256 8430 3239 8455
TIME...MOT...LOC 0042Z 204DEG 15KT 3256 8458 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 2, 7:15 PM EST	Special Weather Statement	FFC	Marion	30 min
Jan 2, 7:26 PM EST	Special Weather Statement	FFC	Chattahoochee, Muscogee	64 min
Jan 2, 7:45 PM EST	Flash Flood Warning	FFC	Chattahoochee, Muscogee	6 hr
Jan 2, 8:34 PM EST	Special Weather Statement	FFC	Crawford, Monroe, Taylor	26 min
Jan 2, 9:02 PM EST	Special Weather Statement	FFC	Crawford, Monroe	28 min
Jan 2, 10:51 PM EST	Severe Thunderstorm Warning	FFC	Crisp, Wilcox	39 min
Jan 2, 11:13 PM EST	Severe Thunderstorm Warning	FFC	Dodge, Pulaski, Telfair, Wilcox	47 min
Jan 2, 11:31 PM EST	Severe Thunderstorm Warning	FFC	Dodge, Laurens, Telfair, Wheeler	44 min
Jan 2, 11:57 PM EST	Wind Advisory	FFC	Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 47 more	3 hr
Jan 3, 12:15 AM EST	Severe Thunderstorm Warning	FFC	Emanuel, Johnson, Laurens, Montgomery, Treutlen, Wheeler	45 min
Jan 3, 12:30 AM EST	Severe Thunderstorm Warning	FFC	Emanuel, Laurens, Montgomery, Toombs, Treutlen, Wheeler	45 min
Jan 3, 12:36 AM EST	River Flood Warning	FFC	Gwinnett	24 hr
Jan 3, 12:36 AM EST	River Flood Warning	FFC	Forsyth, Fulton, Gwinnett	6 days
Jan 3, 4:06 AM EST	River Flood Warning	FFC	Bleckley, Pulaski	72 hr
Jan 3, 4:06 AM EST	River Flood Warning	FFC	Dodge, Telfair, Wilcox	30 hr
Jan 3, 6:40 AM EST	River Flood Warning	FFC	Bibb, Crawford, Houston, Peach	40 hr
Jan 3, 7:28 AM EST	River Flood Warning	FFC	Bibb, Houston, Jones, Monroe, Twiggs	48 hr
Jan 3, 2:50 PM EST	River Flood Warning	FFC	Coweta, Fayette, Spalding	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.