Alert archive / Georgia / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 69, NWS Jacksonville, FL

April 26, 2023Nassau County, Florida; Camden County, Charlton County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Apr 26, 2023, 3:30 PM EDT for Nassau County, Florida; Camden County, Charlton County, Georgia. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 26, 2023, 3:30 PM EDT (19:30 UTC)
Expired: Apr 26, 2023, 3:49 PM EDT
In force: 19 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.75 in
Wind: 60.0 mph

Counties Nassau County, FL, Camden County, GA, Charlton County, GA

The radar

The Jacksonville radar (KJAX), 35 km from the middle of the area, began a volume at 19:30 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 7.5 hours before the alert went out and 287 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: 1333 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 864 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 26, 3:11 PM EDT, 19 minutes earlier.

Area forecast discussion, Apr 26, 3:11 PM EDT, 19 minutes before

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In the hours before

Special weather statement, Apr 26, 1:42 PM EDT, 1 hour 48 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
142 PM EDT Wed Apr 26 2023

GAZ136-261815-
Wayne GA-
142 PM EDT Wed Apr 26 2023

...A strong thunderstorm will impact portions of central Wayne County
through 215 PM EDT...

At 142 PM EDT, Doppler radar was tracking a strong thunderstorm over
Doctortown, or near Jesup, moving northeast at 5 mph.

HAZARD...Winds around 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Jesup and Doctortown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3167 8185 3166 8183 3165 8182 3165 8181
      3166 8181 3165 8180 3163 8179 3163 8177
      3161 8177 3161 8175 3160 8175 3161 8174
      3159 8171 3157 8170 3156 8186 3166 8198
      3169 8186
TIME...MOT...LOC 1742Z 227DEG 5KT 3162 8184

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

NELSON

Special weather statement, Apr 26, 2:12 PM EDT, 1 hour 18 minutes before

Special Weather Statement
National Weather Service Jacksonville FL
212 PM EDT Wed Apr 26 2023

GAZ136-261845-
Wayne GA-
212 PM EDT Wed Apr 26 2023

...A strong thunderstorm will impact portions of east central Wayne
County through 245 PM EDT...

At 212 PM EDT, Doppler radar was tracking a strong thunderstorm near
Gardi, moving east at 10 mph.

HAZARD...Wind gusts of 45 to 55 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Jesup and Gardi.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3163 8177 3161 8177 3162 8176 3161 8175
      3160 8175 3161 8174 3158 8170 3156 8170
      3154 8168 3154 8167 3153 8167 3153 8165
      3150 8165 3151 8184 3160 8191 3163 8178
TIME...MOT...LOC 1812Z 267DEG 7KT 3160 8177

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...55 MPH

NELSON

Special weather statement, Apr 26, 2:46 PM EDT, 44 minutes before

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Local storm report, Apr 26, 3:07 PM EDT, 23 minutes before

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Local storm report, Apr 26, 3:24 PM EDT, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 9:14 PM EDT	Special Weather Statement	JAX	Hamilton	46 min
Apr 26, 3:45 PM EDT	Special Weather Statement	JAX	Nassau	45 min
Apr 26, 4:14 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	46 min
Apr 26, 4:38 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JAX	Duval, Nassau	37 min
Apr 26, 5:03 PM EDT	Special Weather Statement	JAX	Nassau	57 min
Apr 26, 5:18 PM EDT	Special Weather Statement	JAX	Clay	42 min
Apr 26, 5:27 PM EDT	Severe Thunderstorm Warning	JAX	Duval	33 min
Apr 26, 5:36 PM EDT	Severe Thunderstorm Warning	JAX	Clay	24 min
Apr 26, 5:53 PM EDT	Special Weather Statement	JAX	Duval	37 min
Apr 26, 5:58 PM EDT	Severe Thunderstorm Warning	JAX	Clay	47 min
Apr 26, 6:27 PM EDT	Special Weather Statement	JAX	Marion	48 min
Apr 26, 6:37 PM EDT	Special Weather Statement	JAX	Bradford	38 min
Apr 26, 6:40 PM EDT	Special Weather Statement	JAX	Clay	35 min
Apr 26, 6:50 PM EDT	Special Weather Statement	JAX	Gilchrist	40 min
Apr 26, 6:53 PM EDT	Special Weather Statement	JAX	Marion	37 min
Apr 26, 6:59 PM EDT	Severe Thunderstorm Warning	JAX	Marion	46 min
Apr 26, 7:01 PM EDT	Severe Thunderstorm Warning	JAX	Bradford	44 min
Apr 26, 7:09 PM EDT	Special Weather Statement	JAX	Suwannee	36 min
Apr 26, 7:15 PM EDT	Special Weather Statement	JAX	Alachua	45 min
Apr 26, 7:19 PM EDT	Special Weather Statement	JAX	Bradford	41 min
Apr 26, 7:24 PM EDT	Severe Thunderstorm Warning	JAX	Marion	36 min
Apr 26, 7:29 PM EDT	Special Weather Statement	JAX	Union	46 min
Apr 26, 7:32 PM EDT	Special Weather Statement	JAX	Hamilton	43 min
Apr 26, 7:40 PM EDT	Severe Thunderstorm Warning	JAX	Alachua, Marion	35 min
Apr 26, 7:44 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JAX	Marion	46 min
Apr 26, 7:48 PM EDT	Special Weather Statement	JAX	Columbia	42 min
Apr 26, 7:51 PM EDT	Special Weather Statement	JAX	Alachua	39 min
Apr 25, 10:29 PM EDT	Special Weather Statement	JAX	Echols	31 min
Apr 25, 10:55 PM EDT	Special Weather Statement	JAX	Echols	35 min
Apr 26, 1:42 PM EDT	Special Weather Statement	JAX	Wayne	33 min
Apr 26, 2:12 PM EDT	Special Weather Statement	JAX	Wayne	33 min
Apr 26, 2:30 PM EDT	Severe Thunderstorm Warning	JAX	Wayne	30 min
Apr 26, 2:46 PM EDT	Special Weather Statement	JAX	Charlton	44 min
Apr 26, 2:59 PM EDT	Severe Thunderstorm Warning	JAX	Glynn, Wayne	31 min
Apr 26, 3:32 PM EDT	Special Weather Statement	JAX	Glynn	43 min
Apr 26, 4:28 PM EDT	Special Weather Statement	JAX	Brantley	47 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2023 Severe Thunderstorm Warnings in Florida, 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.