Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 123, NWS Jacksonville, FL

June 16, 2021Camden County, Glynn County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 16, 2021, 6:56 PM EDT for Camden County, Glynn County, Georgia. It was in force for 49 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
Jun 16, 2021, 6:56 PM EDT (22:56 UTC)
Expired
Jun 16, 2021, 7:45 PM EDT
In force
49 min
Issued by
NWS Jacksonville, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Camden County, GA, Glynn County, GA

The radar

The Jacksonville radar (KJAX), 64 km from the middle of the area, began a volume at 22:57 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, 10.9 hours before the alert went out and 63 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 2021-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1133 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 2021-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.19395878Sfc1 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
1133 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
865 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

234 
WUUS52 KJAX 162256
SVRJAX
GAC039-127-162345-
/O.NEW.KJAX.SV.W.0123.210616T2256Z-210616T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Jacksonville FL
656 PM EDT Wed Jun 16 2021

The National Weather Service in Jacksonville has issued a

* Severe Thunderstorm Warning for...
  Northeastern Camden County in southeastern Georgia...
  South central Glynn County in southeastern Georgia...

* Until 745 PM EDT.

* At 656 PM EDT, a severe thunderstorm was located 8 miles southwest
  of Brunswick, moving east at 10 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...
  Jekyll Island and Dover Bluff. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

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

&&

LAT...LON 3110 8137 3088 8141 3085 8142 3099 8170
      3114 8159 3111 8135
TIME...MOT...LOC 2256Z 289DEG 9KT 3105 8156 

HAIL...1.00IN
WIND...60MPH
 
$$

SHASHY
2 follow-up statements
818 
WWUS52 KJAX 162312
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
712 PM EDT Wed Jun 16 2021

GAC039-127-162345-
/O.CON.KJAX.SV.W.0123.000000T0000Z-210616T2345Z/
Camden GA-Glynn GA-
712 PM EDT Wed Jun 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN CAMDEN AND SOUTH CENTRAL GLYNN COUNTIES...

At 711 PM EDT, a severe thunderstorm was located near Jekyll Island,
or 8 miles south of Brunswick, moving east at 15 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Jekyll Island and Dover Bluff. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3110 8137 3085 8142 3095 8162 3100 8168
      3107 8156 3111 8144 3111 8136
TIME...MOT...LOC 2311Z 290DEG 11KT 3103 8149 

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

SHASHY
064 
WWUS52 KJAX 162346
SVSJAX

Severe Weather Statement
National Weather Service Jacksonville FL
746 PM EDT Wed Jun 16 2021

GAC039-127-162356-
/O.EXP.KJAX.SV.W.0123.000000T0000Z-210616T2345Z/
Camden GA-Glynn GA-
746 PM EDT Wed Jun 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CAMDEN AND SOUTH
CENTRAL GLYNN COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However gusty 
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3110 8137 3085 8142 3095 8162 3100 8168
      3107 8156 3111 8144 3111 8136
TIME...MOT...LOC 2346Z 334DEG 8KT 3097 8148 

$$

SHASHY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 15, 9:34 PM EDTSpecial Weather StatementJAXBacon, Pierce26 min
Jun 16, 6:52 PM EDTSpecial Weather StatementJAXGlynn38 min
Jun 16, 7:45 PM EDTSpecial Weather StatementJAXCamden45 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.