Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 203, NWS Tallahassee, FL

July 28, 20216 counties in Georgia; Jefferson County, Leon County, Madison County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 28, 2021, 8:29 PM EDT for 6 counties in Georgia; Jefferson County, Leon County, Madison County, Florida. It was in force for 46 min. 1 report 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 28, 2021, 8:29 PM EDT (00:29 UTC)
Expired: Jul 28, 2021, 9:15 PM EDT
In force: 46 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jefferson County, FL, Leon County, FL, Madison County, FL, Brooks County, GA, Colquitt County, GA, Grady County, GA, Lowndes County, GA, Mitchell County, GA, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 71 km from the middle of the area, began a volume at 00:31 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
Jul 28, 8:31 PM EDT	TSTM WND DMG	2 W Pavo, GA	TREE AND POWERLINE DOWN AT HARTS MILL AND PARRISH ROAD IN PAVO. TIME ESTIMATED BY RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 0.5 hours before the alert went out and 69 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: 1337 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 893 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

200 
WUUS52 KTAE 290029
SVRTAE
FLC065-073-079-GAC027-071-131-185-205-275-290115-
/O.NEW.KTAE.SV.W.0203.210729T0029Z-210729T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
829 PM EDT Wed Jul 28 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Northern Jefferson County in Big Bend of Florida...
  Northeastern Leon County in Big Bend of Florida...
  Northwestern Madison County in Big Bend of Florida...
  Eastern Grady County in southwestern Georgia...
  Southeastern Mitchell County in southwestern Georgia...
  West central Lowndes County in south central Georgia...
  Thomas County in south central Georgia...
  Brooks County in south central Georgia...
  Southwestern Colquitt County in south central Georgia...

* Until 915 PM EDT.

* At 828 PM EDT, severe thunderstorms were located along a line
  extending from near Riverside to near Pavo to 6 miles northeast of
  Boston to near Quitman, moving southwest at 25 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Monticello, Moultrie, Thomasville, Cairo, Quitman, Pelham, Boston,
  Ochlocknee, Pavo, Coolidge, Riverside, Greenville, Funston,
  Barwick, Alma, Capel, Dillon, Everett, Rocky Hill and Miccosukee.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3108 8421 3065 8423 3041 8393 3039 8355
      3080 8342 3096 8361 3104 8367 3120 8378
      3126 8391
TIME...MOT...LOC 0028Z 030DEG 24KT 3117 8387 3096 8381 3084 8369 3077
8353

HAIL...0.75IN
WIND...60MPH
 
$$

21-WD

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 9:17 PM EDT	Special Weather Statement	TAE	Grady, Mitchell	58 min
Jul 29, 3:57 AM EDT	Heat Advisory	TAE	Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more	39 hr
Jul 29, 3:57 AM EDT	Excessive Heat Watch	TAE	Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more	12 hr
Jul 29, 6:23 AM EDT	Special Marine Warning	TAE		3 hr
Jul 29, 7:36 AM EDT	Special Marine Warning	TAE		114 min
Jul 29, 9:22 AM EDT	Special Marine Warning	TAE		2 hr
Jul 29, 9:35 AM EDT	Special Marine Warning	TAE		115 min
Jul 29, 11:24 AM EDT	Special Marine Warning	TAE		96 min
Jul 29, 12:55 PM EDT	Special Marine Warning	TAE		95 min
Jul 29, 3:06 PM EDT	Special Weather Statement	TAE	Gulf	54 min
Jul 29, 3:35 PM EDT	Excessive Heat Warning	TAE	Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 7 more	27 hr
Jul 29, 3:40 PM EDT	Special Weather Statement	TAE	Bay, Gulf	50 min
Jul 29, 5:02 PM EDT	Special Weather Statement	TAE	Bay	43 min
Jul 29, 5:13 PM EDT	Special Marine Warning	TAE		62 min
Jul 29, 5:38 PM EDT	Special Weather Statement	TAE	Washington	67 min
Jul 29, 6:00 PM EDT	Special Weather Statement	TAE	Jefferson	60 min
Jul 29, 6:23 PM EDT	Severe Thunderstorm Warning	TAE	Bay, Walton, Washington	37 min
Jul 29, 6:59 PM EDT	Special Weather Statement	TAE	Walton	61 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021 Severe Thunderstorm Warnings in Florida, 2021 Every severe thunderstorm warning in 2021

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.