Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 130, NWS Tallahassee, FL

April 15, 2023Leon County, Wakulla County, Florida; Grady County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 15, 2023, 7:52 PM EDT for Leon County, Wakulla County, Florida; Grady County, Georgia. It was in force for 53 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 15, 2023, 7:52 PM EDT (23:52 UTC)
Expired: Apr 15, 2023, 8:45 PM EDT
In force: 53 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Leon County, FL, Wakulla County, FL, Grady County, GA

The radar

The Tallahassee radar (KTLH), 11 km from the middle of the area, began a volume at 23:53 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.9 hours before the alert went out and 10 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1877 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 153 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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 15, 7:46 PM EDT, 6 minutes earlier.

Area forecast discussion, Apr 15, 7:46 PM EDT, 6 minutes before

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In the hours before

Local storm report, Apr 15, 7:15 PM EDT, 37 minutes before

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Local storm report, Apr 15, 7:26 PM EDT, 26 minutes before

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Local storm report, Apr 15, 7:41 PM EDT, 11 minutes before

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Local storm report, Apr 15, 7:44 PM EDT, 8 minutes before

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Special weather statement, Apr 15, 7:44 PM EDT, 8 minutes before

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Local storm report, Apr 15, 7:47 PM EDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 5:04 PM EDT	Special Marine Warning	TAE		56 min
Apr 15, 5:25 PM EDT	Severe Thunderstorm Warning	TAE	Bay, Holmes, Walton, Washington	65 min
Apr 15, 5:28 PM EDT	Special Marine Warning	TAE		92 min
Apr 15, 5:53 PM EDT	Tornado Warning	TAE	Walton	21 min
Apr 15, 6:24 PM EDT	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	66 min
Apr 15, 6:45 PM EDT	Special Marine Warning	TAE		90 min
Apr 15, 6:54 PM EDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Jackson	66 min
Apr 15, 7:05 PM EDT	Special Weather Statement	TAE	Jackson	40 min
Apr 15, 7:23 PM EDT	Severe Thunderstorm Warning	TAE	Calhoun, Franklin, Gulf, Jackson, Liberty	67 min
Apr 15, 7:40 PM EDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	65 min
Apr 15, 7:51 PM EDT	Special Marine Warning	TAE		114 min
Apr 15, 7:44 PM EDT	Special Weather Statement	TAE	Clay, Early, Miller	46 min
Apr 15, 5:58 PM EDT	Severe Thunderstorm Warning	TAE	Coffee	32 min
Apr 15, 6:27 PM EDT	Special Weather Statement	TAE	Dale	48 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.