Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 182, NWS Jacksonville, FL

June 19, 2023Flagler County, Florida

NWS Jacksonville, FL issued this severe thunderstorm warning at Jun 19, 2023, 7:05 PM EDT for Flagler County, Florida. It was in force for 40 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 19, 2023, 7:05 PM EDT (23:05 UTC)
Expired: Jun 19, 2023, 7:45 PM EDT
In force: 40 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Flagler County, FL

The radar

The Jacksonville radar (KJAX), 119 km from the middle of the area, began a volume at 23:07 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

Tampa Bay, FL (KTBW), launched 12:00Z, 11.1 hours before the alert went out and 224 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: 678 J/kg
Mixed-layer CIN: -194 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 19, 7:01 PM EDT, 4 minutes earlier.

Area forecast discussion, Jun 19, 7:01 PM EDT, 4 minutes before

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In the hours before

Local storm report, Jun 19, 2:33 PM EDT, 4 hours 32 minutes before

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Local storm report, Jun 19, 2:38 PM EDT, 4 hours 27 minutes before

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Special weather statement, Jun 19, 6:32 PM EDT, 33 minutes before

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Special weather statement, Jun 19, 6:36 PM EDT, 29 minutes before

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Special weather statement, Jun 19, 6:53 PM EDT, 12 minutes before

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Special weather statement, Jun 19, 6:59 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
Jun 19, 10:20 AM EDT	Severe Thunderstorm Warning	JAX	Hamilton, Suwannee	40 min
Jun 19, 10:54 AM EDT	Special Weather Statement	JAX	Columbia, Hamilton, Suwannee	51 min
Jun 19, 11:30 AM EDT	Severe Thunderstorm Warning	JAX	Nassau	25 min
Jun 19, 11:36 AM EDT	Special Weather Statement	JAX	Suwannee	24 min
Jun 19, 11:45 AM EDT	Special Weather Statement	JAX	Baker, Columbia	30 min
Jun 19, 11:57 AM EDT	Special Weather Statement	JAX	Nassau	48 min
Jun 19, 12:25 PM EDT	Special Marine Warning	JAX		65 min
Jun 19, 12:30 PM EDT	Special Marine Warning	JAX		60 min
Jun 19, 12:33 PM EDT	Special Weather Statement	JAX	Nassau	42 min
Jun 19, 12:37 PM EDT	Special Weather Statement	JAX	Bradford, Clay	38 min
Jun 19, 12:48 PM EDT	Special Weather Statement	JAX	Duval	42 min
Jun 19, 6:32 PM EDT	Special Weather Statement	JAX	Marion	43 min
Jun 19, 6:36 PM EDT	Special Weather Statement	JAX	Saint Johns	39 min
Jun 19, 6:46 PM EDT	Severe Thunderstorm Warning	JAX	Saint Johns	29 min
Jun 19, 6:49 PM EDT	Special Marine Warning	JAX		56 min
Jun 19, 6:53 PM EDT	Special Weather Statement	JAX	Putnam	52 min
Jun 19, 6:59 PM EDT	Special Weather Statement	JAX	Flagler	46 min
Jun 19, 7:08 PM EDT	Special Weather Statement	JAX	Clay	52 min
Jun 19, 7:11 PM EDT	Special Marine Warning	JAX		64 min
Jun 19, 7:23 PM EDT	Special Weather Statement	JAX	Saint Johns	37 min
Jun 19, 7:36 PM EDT	Special Weather Statement	JAX	Saint Johns	39 min
Jun 19, 7:41 PM EDT	Areal Flood Advisory	JAX	Flagler	2 hr
Jun 19, 7:42 PM EDT	Areal Flood Advisory	JAX	Saint Johns	2 hr
Jun 19, 7:43 PM EDT	Special Weather Statement	JAX	Flagler	32 min
Jun 19, 7:55 PM EDT	Special Weather Statement	JAX	Saint Johns	35 min
Jun 18, 8:02 PM EDT	Special Weather Statement	JAX	Long	43 min
Jun 18, 8:19 PM EDT	Special Weather Statement	JAX	Charlton	41 min
Jun 19, 9:25 AM EDT	Special Weather Statement	JAX	Atkinson, Clinch, Coffee, Echols	65 min
Jun 19, 10:09 AM EDT	Severe Thunderstorm Warning	JAX	Atkinson, Clinch, Echols	51 min
Jun 19, 10:40 AM EDT	Special Weather Statement	JAX	Appling, Bacon, Jeff Davis	50 min
Jun 19, 10:49 AM EDT	Severe Thunderstorm Warning	JAX	Charlton, Clinch, Echols, Ware	41 min
Jun 19, 11:17 AM EDT	Special Weather Statement	JAX	Appling, Brantley, Pierce, Wayne	43 min
Jun 19, 11:50 AM EDT	Special Weather Statement	JAX	Brantley, Wayne	40 min
Jun 19, 12:18 PM EDT	Special Weather Statement	JAX	Camden, Glynn	42 min
Jun 19, 12:27 PM EDT	Severe Thunderstorm Warning	JAX	Camden, Glynn	33 min

Nearby

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.