Alert archive / Georgia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 21, NWS Columbia, SC

February 6, 2020Columbia County, McDuffie County, Richmond County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Feb 6, 2020, 2:09 PM EST for Columbia County, McDuffie County, Richmond County, Georgia. It was in force for 36 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: Feb 6, 2020, 2:09 PM EST (19:09 UTC)
Expired: Feb 6, 2020, 2:45 PM EST
In force: 36 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Columbia County, GA, McDuffie County, GA, Richmond County, GA

The radar

The Robins AFB radar (KJGX), 124 km from the middle of the area, began a volume at 19:13 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
Feb 6, 2:16 PM EST	TSTM WND DMG	3 W Grovetown, GA	MULTIPLE DOWNED TREES ALONG HARLEM GROVETOWN ROAD. 800 REPORTED POWEDR OUTAGES COMBINED IN CITIES OF HARLEM AND GROVETOWN. TIME ESTIMATED BY RADAR.
Feb 6, 2:24 PM EST	TSTM WND DMG	4 Ssw Augusta, GA	TREES REPORTED DOWN ON 2 HOUSES ON SATCHER BLVD. TIME ESTIMATED BY RADAR.
Feb 6, 2:32 PM EST	TSTM WND DMG	3 Se Martinez, GA	RICHMOND COUNTY DISPATCH REPORTED TREE DOWN ON POWER LINE ON REGENT ROAD AT WHEELER ROAD. TIME ESTIMATED BY RADAR.

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
Feb 6, 10:12 AM EST	Tornado Watch	SPC	7 hr
Feb 6, 12:17 PM EST	Tornado Watch	SPC	8 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.2 hours before the alert went out and 207 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: 732 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 514 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 297 m²/s²
0-3 km storm-relative helicity: 391 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 5.3

Open this sounding in Storm Lab

The text

As transmitted.

721 
WUUS52 KCAE 061909
SVRCAE
GAC073-189-245-061945-
/O.NEW.KCAE.SV.W.0021.200206T1909Z-200206T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
209 PM EST Thu Feb 6 2020

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Southeastern McDuffie County in east central Georgia...
  Southeastern Columbia County in east central Georgia...
  Central Richmond County in east central Georgia...

* Until 245 PM EST.

* At 209 PM EST, a severe thunderstorm was located 7 miles south of
  Harlem, or 11 miles southwest of Grovetown, moving northeast at 55
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Grovetown, Evans, Martinez, Fort Gordon, Hephzibah, Harlem,
  Glendale, South Augusta, Midtown, Summerville, Augusta Mall, Daniel
  Field, Village Plaza Shopping Center, Blythe, Liberty Park
  Community Center, Glenn Hills, Bath-Edie, Adamsville, Westover
  Memorial Park and Westover.

This includes the following highways...
 Interstate 20 in Georgia between mile markers 188 and 199.
 Interstate 520 in Georgia between mile markers 1 and 12.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM EST for east central
Georgia...and central South Carolina.

For your protection seek shelter inside a sturdy building and stay
away from windows.

&&

LAT...LON 3334 8246 3358 8211 3341 8194 3329 8216
      3330 8218 3327 8226 3327 8229 3330 8231
      3331 8234 3331 8239 3333 8242
TIME...MOT...LOC 1909Z 239DEG 49KT 3331 8231 

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

fwa

1 follow-up statement

516 
WWUS52 KCAE 061923
SVSCAE

Severe Weather Statement
National Weather Service Columbia SC
223 PM EST Thu Feb 6 2020

GAC189-061932-
/O.CAN.KCAE.SV.W.0021.000000T0000Z-200206T1945Z/
McDuffie GA-
223 PM EST Thu Feb 6 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MCDUFFIE 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 800 PM EST for east central
Georgia.

LAT...LON 3358 8211 3345 8198 3332 8223 3335 8226
      3348 8225
TIME...MOT...LOC 1922Z 239DEG 49KT 3341 8212 

$$

GAC073-245-061945-
/O.CON.KCAE.SV.W.0021.000000T0000Z-200206T1945Z/
Columbia GA-Richmond GA-
223 PM EST Thu Feb 6 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EST
FOR SOUTHEASTERN COLUMBIA AND CENTRAL RICHMOND COUNTIES...

At 222 PM EST, a severe thunderstorm was located over Fort Gordon,
moving northeast at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Grovetown, Evans, Martinez, Fort Gordon, Glendale, Midtown,
Summerville, Augusta Mall, Daniel Field, Village Plaza Shopping
Center, Liberty Park Community Center, Glenn Hills, Westover Memorial
Park, Blanchard Park, Westmont, Bellevue Memorial Gardens, Forest
Hills, Leitner Lake Conference Center, Minnick Park and Evans Medical
Center.

This includes the following highways...
 Interstate 20 in Georgia between mile markers 188 and 199.
 Interstate 520 in Georgia between mile markers 1 and 6.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM EST for east central
Georgia.

&&

LAT...LON 3358 8211 3345 8198 3332 8223 3335 8226
      3348 8225
TIME...MOT...LOC 1922Z 239DEG 49KT 3341 8212 

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

fwa

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 6, 3:52 AM EST	Lake Wind Advisory	CAE	Burke, Columbia, Lincoln, McDuffie, Richmond	24 hr
Feb 6, 1:16 PM EST	Severe Thunderstorm Warning	CAE	Lincoln	44 min
Feb 6, 1:18 PM EST	Tornado Warning	CAE	Lincoln	27 min
Feb 6, 1:26 PM EST	Areal Flood Advisory	CAE	Lincoln	4 hr
Feb 6, 1:51 PM EST	Severe Thunderstorm Warning	CAE	Lincoln	39 min
Feb 6, 2:28 PM EST	Tornado Warning	CAE	Columbia, Richmond	32 min
Feb 6, 2:32 PM EST	Severe Thunderstorm Warning	CAE	Columbia	28 min
Feb 6, 2:58 PM EST	Severe Thunderstorm Warning	CAE	Columbia, Lincoln, McDuffie	36 min
Feb 6, 3:14 PM EST	Severe Thunderstorm Warning	CAE	Richmond	31 min
Feb 6, 3:38 PM EST	Severe Thunderstorm Warning	CAE	Burke, Richmond	37 min
Feb 6, 4:07 PM EST	Severe Thunderstorm Warning	CAE	Burke	38 min
Feb 6, 4:29 PM EST	Areal Flood Advisory	CAE	Burke, Richmond	3 hr
Feb 6, 4:39 PM EST	Severe Thunderstorm Warning	CAE	Burke	51 min
Feb 6, 4:51 PM EST	Tornado Warning	CAE	Burke	23 min
Feb 6, 6:12 PM EST	Areal Flood Advisory	CAE	Columbia, Lincoln, McDuffie	6 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2020 Every severe thunderstorm warning in 2020

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.