Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 147, NWS Jacksonville, FL

June 13, 2023Duval County, Nassau County, Florida; Camden County, Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 13, 2023, 7:36 PM EDT for Duval County, Nassau County, Florida; Camden County, Georgia. It was in force for 24 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: Jun 13, 2023, 7:36 PM EDT (23:36 UTC)
Expired: Jun 13, 2023, 8:00 PM EDT
In force: 24 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Duval County, FL, Nassau County, FL, Camden County, GA

The radar

The Jacksonville radar (KJAX), 15 km from the middle of the area, began a volume at 23:39 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 13, 4:03 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.6 hours before the alert went out and 252 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: 950 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

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 Jun 13, 4:43 PM EDT, 2 hours 53 minutes earlier.

Area forecast discussion, Jun 13, 4:43 PM EDT, 2 hours 53 minutes before

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In the hours before

Special weather statement, Jun 13, 6:53 PM EDT, 43 minutes before

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Special weather statement, Jun 13, 7:06 PM EDT, 30 minutes before

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Special weather statement, Jun 13, 7:06 PM EDT, 30 minutes before

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Special weather statement, Jun 13, 7:16 PM EDT, 20 minutes before

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Local storm report, Jun 13, 7:16 PM EDT, 20 minutes before

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Local storm report, Jun 13, 7:34 PM EDT, 2 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
Jun 12, 11:05 PM EDT	Special Marine Warning	JAX		55 min
Jun 13, 4:48 PM EDT	Special Marine Warning	JAX		37 min
Jun 13, 4:56 PM EDT	Special Marine Warning	JAX		64 min
Jun 13, 5:32 PM EDT	Special Weather Statement	JAX	Duval	28 min
Jun 13, 5:43 PM EDT	Special Marine Warning	JAX		62 min
Jun 13, 5:44 PM EDT	Severe Thunderstorm Warning	JAX	Duval, Nassau	17 min
Jun 13, 5:52 PM EDT	Special Weather Statement	JAX	Baker	38 min
Jun 13, 6:01 PM EDT	Special Weather Statement	JAX	Duval	29 min
Jun 13, 6:10 PM EDT	Severe Thunderstorm Warning	JAX	Duval	20 min
Jun 13, 6:13 PM EDT	Special Weather Statement	JAX	Clay	32 min
Jun 13, 6:16 PM EDT	Special Weather Statement	JAX	Duval	29 min
Jun 13, 6:19 PM EDT	Severe Thunderstorm Warning	JAX	Columbia, Hamilton	26 min
Jun 13, 6:24 PM EDT	Special Marine Warning	JAX		66 min
Jun 13, 6:27 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Bradford, Clay, Duval	33 min
Jun 13, 6:31 PM EDT	Severe Thunderstorm Warning	JAX	Duval	14 min
Jun 13, 6:42 PM EDT	Special Marine Warning	JAX		38 min
Jun 13, 6:45 PM EDT	Special Weather Statement	JAX	Hamilton	45 min
Jun 13, 6:47 PM EDT	Special Weather Statement	JAX	Saint Johns	28 min
Jun 13, 6:53 PM EDT	Special Weather Statement	JAX	Duval	22 min
Jun 13, 7:00 PM EDT	Severe Thunderstorm Warning	JAX	Clay, Duval, Saint Johns	30 min
Jun 13, 7:04 PM EDT	Special Marine Warning	JAX		56 min
Jun 13, 7:13 PM EDT	Severe Thunderstorm Warning	JAX	Nassau	32 min
Jun 13, 7:16 PM EDT	Special Weather Statement	JAX	Baker, Hamilton, Nassau	44 min
Jun 13, 7:18 PM EDT	Special Marine Warning	JAX		27 min
Jun 13, 7:22 PM EDT	Special Marine Warning	JAX		53 min
Jun 13, 7:23 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	37 min
Jun 13, 7:29 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Nassau	31 min
Jun 13, 7:32 PM EDT	Special Marine Warning	JAX		58 min
Jun 13, 7:39 PM EDT	Special Marine Warning	JAX		66 min
Jun 13, 7:48 PM EDT	Severe Thunderstorm Warning	JAX	Baker, Clay, Duval, Nassau	27 min
Jun 13, 7:57 PM EDT	Special Weather Statement	JAX	Duval, Nassau	33 min
Jun 12, 8:19 PM EDT	Special Weather Statement	JAX	Wayne	41 min
Jun 12, 8:46 PM EDT	Special Weather Statement	JAX	Wayne	29 min
Jun 12, 9:49 PM EDT	Special Weather Statement	JAX	Echols	26 min
Jun 12, 10:21 PM EDT	Special Weather Statement	JAX	Echols	24 min
Jun 13, 3:47 PM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	58 min
Jun 13, 4:14 PM EDT	Severe Thunderstorm Warning	JAX	Coffee	46 min
Jun 13, 4:40 PM EDT	Special Weather Statement	JAX	Appling, Jeff Davis	50 min
Jun 13, 4:52 PM EDT	Special Weather Statement	JAX	Coffee	38 min
Jun 13, 5:00 PM EDT	Special Weather Statement	JAX	Appling	60 min
Jun 13, 5:14 PM EDT	Special Weather Statement	JAX	Appling, Bacon, Pierce, Wayne	61 min
Jun 13, 5:20 PM EDT	Severe Thunderstorm Warning	JAX	Appling, Bacon, Coffee, Pierce, Ware	25 min
Jun 13, 5:23 PM EDT	Severe Thunderstorm Warning Considerable damage threat	JAX	Atkinson, Clinch, Coffee, Ware	37 min
Jun 13, 5:48 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Echols, Ware	27 min
Jun 13, 5:55 PM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Clinch, Ware	35 min
Jun 13, 6:00 PM EDT	Special Weather Statement	JAX	Wayne	30 min
Jun 13, 6:22 PM EDT	Special Weather Statement	JAX	Appling, Brantley, Pierce, Wayne	38 min
Jun 13, 7:06 PM EDT	Special Weather Statement	JAX	Glynn	24 min
Jun 13, 7:06 PM EDT	Special Weather Statement	JAX	Glynn	24 min

Nearby

Severe Thunderstorm Warnings in Florida, 2023 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.