Alert archive / Georgia / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 310, NWS Jacksonville, FL

September 12, 2023Brantley County, Charlton County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Sep 12, 2023, 7:59 PM EDT for Brantley County, Charlton County, Georgia. It was in force for 15 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: Sep 12, 2023, 7:59 PM EDT (23:59 UTC)
Expired: Sep 12, 2023, 8:14 PM EDT
In force: 15 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brantley County, GA, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 57 km from the middle of the area, began a volume at 00:00 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 12.0 hours before the alert went out and 55 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: 1731 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 621 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 48 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

578 
WUUS52 KJAX 122359
SVRJAX
GAC025-049-130030-
/O.NEW.KJAX.SV.W.0310.230912T2359Z-230913T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jacksonville FL
759 PM EDT Tue Sep 12 2023

The National Weather Service in Jacksonville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Brantley County in southeastern Georgia...
  Northeastern Charlton County in southeastern Georgia...

* Until 830 PM EDT.

* At 759 PM EDT, severe thunderstorms were located along a line
  extending from near Hickox to near Folkston, moving southeast at 15
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Folkston, Homeland, Hickox, and Winokur. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3115 8181 3110 8184 3110 8191 3109 8192
      3105 8194 3104 8191 3098 8192 3095 8189
      3091 8192 3091 8190 3085 8190 3081 8191
      3082 8193 3083 8194 3082 8196 3080 8196
      3077 8198 3086 8209 3120 8198
TIME...MOT...LOC 2359Z 294DEG 13KT 3108 8196 3083 8196 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

SANDRIK

1 follow-up statement

220 
WWUS52 KJAX 130014
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
814 PM EDT Tue Sep 12 2023

GAC025-049-130024-
/O.CAN.KJAX.SV.W.0310.000000T0000Z-230913T0030Z/
Brantley GA-Charlton GA-
814 PM EDT Tue Sep 12 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BRANTLEY AND
NORTHEASTERN CHARLTON COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.  However, gusty winds are
still possible with these thunderstorms.

LAT...LON 3115 8181 3110 8184 3110 8191 3109 8192
      3105 8194 3104 8191 3098 8192 3095 8189
      3091 8192 3091 8190 3085 8190 3081 8191
      3082 8193 3083 8194 3082 8196 3080 8196
      3077 8198 3086 8209 3120 8198
TIME...MOT...LOC 0006Z 294DEG 13KT 3107 8193 3082 8193 

$$

SANDRIK

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 5:26 PM EDT	Special Weather Statement	JAX	Clinch	19 min
Sep 12, 5:38 PM EDT	Special Weather Statement	JAX	Clinch, Echols	22 min
Sep 12, 5:42 PM EDT	Special Weather Statement	JAX	Ware	33 min
Sep 12, 5:48 PM EDT	Special Weather Statement	JAX	Pierce	27 min
Sep 12, 5:50 PM EDT	Special Weather Statement	JAX	Clinch	10 min
Sep 12, 6:02 PM EDT	Special Weather Statement	JAX	Clinch, Echols	13 min
Sep 12, 6:16 PM EDT	Special Weather Statement	JAX	Clinch, Echols	29 min
Sep 12, 6:17 PM EDT	Special Weather Statement	JAX	Wayne	28 min
Sep 12, 6:22 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	23 min
Sep 12, 6:48 PM EDT	Special Weather Statement	JAX	Pierce, Wayne	27 min
Sep 12, 7:16 PM EDT	Special Weather Statement	JAX	Brantley	29 min
Sep 12, 7:24 PM EDT	Severe Thunderstorm Warning	JAX	Brantley, Charlton, Pierce	36 min
Sep 12, 7:35 PM EDT	Special Weather Statement	JAX	Glynn	25 min
Sep 12, 7:42 PM EDT	Severe Thunderstorm Warning	JAX	Camden, Charlton	33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2023 Every severe thunderstorm warning in 2023

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.