Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 162, NWS Jacksonville, FL

October 8, 20214 counties in Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Oct 8, 2021, 10:44 AM EDT for 4 counties in Georgia. It was in force for 31 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
Oct 8, 2021, 10:44 AM EDT (14:44 UTC)
Expired
Oct 8, 2021, 11:15 AM EDT
In force
31 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Brantley County, GA, Camden County, GA, Glynn County, GA, Wayne County, GA

The radar

The Jacksonville radar (KJAX), 97 km from the middle of the area, began a volume at 14:46 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, 2.7 hours before the alert went out and 96 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 2021-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2220 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 2021-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
2220 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

As transmitted.

644 
WUUS52 KJAX 081444
SVRJAX
GAC025-039-127-305-081515-
/O.NEW.KJAX.SV.W.0162.211008T1444Z-211008T1515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jacksonville FL
1044 AM EDT Fri Oct 8 2021

The National Weather Service in Jacksonville has issued a

* Severe Thunderstorm Warning for...
  North central Camden County in southeastern Georgia...
  Glynn County in southeastern Georgia...
  Northeastern Brantley County in southeastern Georgia...
  Southeastern Wayne County in southeastern Georgia...

* Until 1115 AM EDT.

* At 1044 AM EDT, severe thunderstorms were located along a line
  extending from near Gardi to near Everett to 6 miles northwest of
  Waverly, moving east at 25 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Brunswick, St. Simons Island, Dock Junction, Country Club Estates,
  Thalmann, Sea Island, Everett, Waynesville, Jekyll Island and
  Atkinson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3119 8125 3110 8137 3106 8138 3113 8191
      3138 8178 3163 8177 3158 8170 3156 8170
      3154 8167 3150 8165 3148 8162 3143 8161
      3136 8152 3133 8144 3128 8139 3129 8139
      3131 8134 3128 8132 3127 8122
TIME...MOT...LOC 1444Z 282DEG 20KT 3151 8171 3135 8165 3113 8182 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ENYEDI
2 follow-up statements
119 
WWUS52 KJAX 081501
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
1101 AM EDT Fri Oct 8 2021

GAC025-305-081511-
/O.CAN.KJAX.SV.W.0162.000000T0000Z-211008T1515Z/
Brantley GA-Wayne GA-
1101 AM EDT Fri Oct 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BRANTLEY AND
SOUTHEASTERN WAYNE COUNTIES IS CANCELLED...

The storms which prompted the warning has moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3119 8125 3110 8137 3106 8138 3112 8183
      3116 8177 3117 8178 3128 8175 3133 8173
      3136 8170 3139 8170 3140 8167 3145 8163
      3138 8155 3133 8147 3133 8144 3128 8139
      3129 8138 3131 8134 3128 8132 3127 8122
TIME...MOT...LOC 1501Z 270DEG 20KT 3149 8161 3133 8155 3111 8172 

$$

GAC039-127-081515-
/O.CON.KJAX.SV.W.0162.000000T0000Z-211008T1515Z/
Camden GA-Glynn GA-
1101 AM EDT Fri Oct 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 AM EDT
FOR NORTH CENTRAL CAMDEN AND GLYNN COUNTIES...

At 1101 AM EDT, severe thunderstorms were located along a line
extending from near Cox to 6 miles southeast of Everett to Waverly,
moving east at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Brunswick, St. Simons Island, Dock Junction, Country Club Estates,
Thalmann, Sea Island, Everett, Jekyll Island and Boys Estate.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3119 8125 3110 8137 3106 8138 3112 8183
      3116 8177 3117 8178 3128 8175 3133 8173
      3136 8170 3139 8170 3140 8167 3145 8163
      3138 8155 3133 8147 3133 8144 3128 8139
      3129 8138 3131 8134 3128 8132 3127 8122
TIME...MOT...LOC 1501Z 270DEG 20KT 3149 8161 3133 8155 3111 8172 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ENYEDI
226 
WWUS52 KJAX 081517
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
1117 AM EDT Fri Oct 8 2021

GAC039-127-081526-
/O.EXP.KJAX.SV.W.0162.000000T0000Z-211008T1515Z/
Camden GA-Glynn GA-
1117 AM EDT Fri Oct 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CAMDEN AND GLYNN
COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe 
limits, however gusty winds and heavy rain are still possible with 
these thunderstorms.

LAT...LON 3119 8125 3110 8137 3106 8138 3112 8183
      3116 8177 3117 8178 3128 8175 3133 8173
      3136 8170 3139 8170 3140 8167 3145 8163
      3138 8155 3133 8147 3133 8144 3128 8139
      3129 8138 3131 8134 3128 8132 3127 8122
TIME...MOT...LOC 1516Z 282DEG 20KT 3148 8153 3132 8147 3110 8164 

$$

ENYEDI

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 6:27 AM EDTSpecial Weather StatementJAXCoffee48 min
Oct 8, 6:46 AM EDTSevere Thunderstorm WarningJAXCoffee29 min
Oct 8, 7:15 AM EDTSevere Thunderstorm WarningJAXCoffee, Jeff Davis60 min
Oct 8, 7:23 AM EDTSpecial Weather StatementJAXAppling52 min
Oct 8, 7:37 AM EDTSpecial Weather StatementJAXCoffee23 min
Oct 8, 7:53 AM EDTSevere Thunderstorm WarningJAXAppling, Atkinson, Bacon, Coffee, Jeff Davis52 min
Oct 8, 7:58 AM EDTAreal Flood WarningJAXCoffee, Jeff Davis3 hr
Oct 8, 8:41 AM EDTSpecial Weather StatementJAXBacon34 min
Oct 8, 8:46 AM EDTSevere Thunderstorm WarningJAXAppling, Wayne44 min
Oct 8, 8:49 AM EDTSpecial Weather StatementJAXAtkinson, Bacon, Pierce26 min
Oct 8, 9:18 AM EDTSpecial Weather StatementJAXAtkinson, Bacon, Pierce57 min
Oct 8, 9:19 AM EDTSpecial Weather StatementJAXWayne56 min
Oct 8, 9:41 AM EDTSpecial Weather StatementJAXBrantley, Pierce, Wayne34 min
Oct 8, 10:15 AM EDTSpecial Weather StatementJAXBrantley, Glynn, Wayne30 min
Oct 8, 10:26 AM EDTSpecial Weather StatementJAXClinch, Echols, Ware49 min
Oct 8, 10:41 AM EDTSpecial Weather StatementJAXGlynn49 min
Oct 8, 10:57 AM EDTSpecial Weather StatementJAXCharlton33 min
Oct 8, 11:24 AM EDTSpecial Weather StatementJAXCamden36 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.