Alert archive / Georgia / Tornado Warnings in 2021

Tornado Warning 42, NWS Jacksonville, FL

December 30, 20214 counties in Georgia

NWS Jacksonville, FL issued this tornado warning at Dec 30, 2021, 4:33 PM EST for 4 counties in Georgia. It was in force for 27 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
Dec 30, 2021, 4:33 PM EST (21:33 UTC)
Expired
Dec 30, 2021, 5:00 PM EST
In force
27 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Appling County, GA, Bacon County, GA, Coffee County, GA, Jeff Davis County, GA

The radar

The Moody AFB radar (KVAX), 95 km from the middle of the area, began a volume at 21:37 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, 9.6 hours before the alert went out and 162 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-pSkew-T log-p diagram, Jacksonville, FL at 12:00Z on 2021-12-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2021-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
35 J/kg
Mixed-layer CIN
-130 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

698 
WFUS52 KJAX 302133
TORJAX
GAC001-005-069-161-302200-
/O.NEW.KJAX.TO.W.0042.211230T2133Z-211230T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Jacksonville FL
433 PM EST Thu Dec 30 2021

The National Weather Service in Jacksonville has issued a

* Tornado Warning for...
  East central Coffee County in southeastern Georgia...
  Northwestern Bacon County in southeastern Georgia...
  Southern Jeff Davis County in southeastern Georgia...
  West central Appling County in southeastern Georgia...

* Until 500 PM EST.
    
* At 433 PM EST, a severe thunderstorm capable of producing a tornado
  was located near Snipesville, or 8 miles northeast of Broxton,
  moving east at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  east central Coffee, northwestern Bacon, southern Jeff Davis and
  west central Appling Counties, including the following locations...
  Denton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3164 8281 3173 8281 3185 8247 3163 8241
TIME...MOT...LOC 2133Z 258DEG 22KT 3169 8276 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

HESS
2 follow-up statements
471 
WWUS52 KJAX 302146
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
446 PM EST Thu Dec 30 2021

GAC069-302155-
/O.CAN.KJAX.TO.W.0042.000000T0000Z-211230T2200Z/
Coffee GA-
446 PM EST Thu Dec 30 2021

...THE TORNADO WARNING FOR EAST CENTRAL COFFEE COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 3168 8243 3167 8268 3173 8270 3185 8247
TIME...MOT...LOC 2145Z 258DEG 22KT 3170 8268 

$$

GAC001-005-161-302200-
/O.CON.KJAX.TO.W.0042.000000T0000Z-211230T2200Z/
Bacon GA-Jeff Davis GA-Appling GA-
446 PM EST Thu Dec 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM EST FOR NORTH
CENTRAL BACON...SOUTHEASTERN JEFF DAVIS AND WEST CENTRAL APPLING
COUNTIES...
    
At 445 PM EST, a severe thunderstorm capable of producing a tornado
was located near Snipesville, or 12 miles southwest of Hazlehurst,
moving east at 25 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Graham and Denton. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3168 8243 3167 8268 3173 8270 3185 8247
TIME...MOT...LOC 2145Z 258DEG 22KT 3170 8268 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

HESS
535 
WWUS52 KJAX 302159
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
459 PM EST Thu Dec 30 2021

GAC001-005-161-302209-
/O.EXP.KJAX.TO.W.0042.000000T0000Z-211230T2200Z/
Bacon GA-Jeff Davis GA-Appling GA-
459 PM EST Thu Dec 30 2021

...THE TORNADO WARNING FOR NORTH CENTRAL BACON...SOUTHEASTERN JEFF
DAVIS AND WEST CENTRAL APPLING COUNTIES WILL EXPIRE AT 500 PM EST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3168 8243 3167 8268 3173 8270 3185 8247
TIME...MOT...LOC 2159Z 258DEG 22KT 3172 8259 

$$

HESS

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 30, 3:34 PM ESTSpecial Weather StatementJAXJeff Davis56 min
Dec 30, 4:27 PM ESTSevere Thunderstorm WarningJAXAppling, Bacon, Coffee, Jeff Davis33 min
Dec 30, 4:56 PM ESTSpecial Weather StatementJAXAtkinson49 min
Dec 30, 5:01 PM ESTSpecial Weather StatementJAXAppling44 min
Dec 30, 5:20 PM ESTSevere Thunderstorm WarningJAXAtkinson, Clinch40 min
Dec 30, 6:00 PM ESTSpecial Weather StatementJAXWare45 min
Dec 30, 6:37 PM ESTSevere Thunderstorm WarningJAXClinch38 min
Dec 30, 6:41 PM ESTSpecial Weather StatementJAXWare34 min

Nearby

Tornado Warnings in Georgia, 2021Every tornado warning in 2021Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.