Alert archive / Georgia / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 98, NWS Jacksonville, FL

May 20, 2022Nassau County, Florida; 4 counties in Georgia

NWS Jacksonville, FL issued this severe thunderstorm warning at May 20, 2022, 7:51 PM EDT for Nassau County, Florida; 4 counties in 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: May 20, 2022, 7:51 PM EDT (23:51 UTC)
Expired: May 20, 2022, 8:15 PM EDT
In force: 24 min
Issued by: NWS Jacksonville, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.9 hours before the alert went out and 54 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: 1098 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1102 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: -33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 May 20, 6:57 PM EDT, 54 minutes earlier.

Area forecast discussion, May 20, 6:57 PM EDT, 54 minutes before

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In the hours before

Special weather statement, May 20, 6:50 PM EDT, 1 hour 1 minute before

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Special weather statement, May 20, 6:59 PM EDT, 52 minutes before

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Local storm report, May 20, 7:04 PM EDT, 47 minutes before

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Special weather statement, May 20, 7:13 PM EDT, 38 minutes before

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Local storm report, May 20, 7:26 PM EDT, 25 minutes before

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Special weather statement, May 20, 7:42 PM EDT, 9 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
May 20, 4:05 PM EDT	Special Weather Statement	JAX	Marion	40 min
May 20, 4:17 PM EDT	Special Weather Statement	JAX	Hamilton	43 min
May 20, 4:46 PM EDT	Special Weather Statement	JAX	Marion	44 min
May 20, 4:48 PM EDT	Special Weather Statement	JAX	Marion	42 min
May 20, 5:28 PM EDT	Special Weather Statement	JAX	Marion, Putnam	47 min
May 20, 5:29 PM EDT	Special Weather Statement	JAX	Marion	46 min
May 20, 5:31 PM EDT	Special Weather Statement	JAX	Flagler, Saint Johns	44 min
May 20, 5:55 PM EDT	Special Marine Warning	JAX		50 min
May 20, 6:03 PM EDT	Special Weather Statement	JAX	Bradford	42 min
May 20, 6:13 PM EDT	Special Weather Statement	JAX	Saint Johns	47 min
May 20, 6:21 PM EDT	Special Weather Statement	JAX	Baker	54 min
May 20, 6:59 PM EDT	Special Weather Statement	JAX	Duval, Nassau	31 min
May 20, 7:42 PM EDT	Special Weather Statement	JAX	Nassau	48 min
May 20, 4:55 PM EDT	Special Weather Statement	JAX	Clinch, Echols	50 min
May 20, 5:17 PM EDT	Severe Thunderstorm Warning	JAX	Clinch, Echols	28 min
May 20, 5:43 PM EDT	Special Weather Statement	JAX	Atkinson	32 min
May 20, 6:10 PM EDT	Special Weather Statement	JAX	Atkinson, Coffee	50 min
May 20, 6:50 PM EDT	Special Weather Statement	JAX	Coffee, Jeff Davis	40 min
May 20, 7:13 PM EDT	Special Weather Statement	JAX	Charlton, Ware	32 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2022 Severe Thunderstorm Warnings in Florida, 2022 Every severe thunderstorm warning in 2022

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.