Alert archive / Florida / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 317, NWS Tallahassee, FL

December 15, 20226 counties in Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 15, 2022, 1:24 AM CST for 6 counties in Florida. It was in force for 96 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: Dec 15, 2022, 1:24 AM CST (07:24 UTC)
Expired: Dec 15, 2022, 3:00 AM CST
In force: 96 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Bay County, FL, Calhoun County, FL, Gulf County, FL, Jackson County, FL, Liberty County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 63 km from the middle of the area, began a volume at 07:26 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
Dec 15, 1:02 AM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.4 hours before the alert went out and 97 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: 172 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 513 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 222 m²/s²
0-3 km storm-relative helicity: 274 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.4

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 Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Dec 15, 12:11 AM CST, 1 hour 13 minutes earlier.

Area forecast discussion, Dec 15, 12:11 AM CST, 1 hour 13 minutes before

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In the hours before

Local storm report, Dec 14, 11:08 PM CST, 2 hours 16 minutes before

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Local storm report, Dec 14, 11:58 PM CST, 1 hour 26 minutes before

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Local storm report, Dec 15, 12:32 AM CST, 52 minutes before

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Local storm report, Dec 15, 12:44 AM CST, 40 minutes before

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Local storm report, Dec 15, 1:12 AM CST, 12 minutes before

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Local storm report, Dec 15, 1:18 AM CST, 6 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
Dec 14, 6:20 PM CST	Tornado Warning	TAE	Franklin, Gulf	25 min
Dec 14, 6:36 PM CST	Tornado Warning	TAE	Franklin, Liberty	39 min
Dec 14, 6:41 PM CST	Severe Thunderstorm Warning	TAE	Franklin	40 min
Dec 14, 6:45 PM CST	Special Weather Statement	TAE	Jackson	30 min
Dec 14, 7:19 PM CST	Tornado Warning	TAE	Franklin	26 min
Dec 14, 7:32 PM CST	Special Marine Warning	TAE		118 min
Dec 14, 7:40 PM CST	Tornado Warning	TAE	Franklin	37 min
Dec 14, 8:01 PM CST	Special Weather Statement	TAE	Walton	44 min
Dec 14, 8:05 PM CST	Severe Thunderstorm Warning	TAE	Walton	40 min
Dec 14, 8:16 PM CST	Tornado Warning	TAE	Franklin, Liberty, Wakulla	29 min
Dec 14, 8:36 PM CST	Tornado Warning Tornado observed	TAE	Wakulla	39 min
Dec 14, 8:44 PM CST	Tornado Warning	TAE	Holmes, Walton	31 min
Dec 14, 9:04 PM CST	Tornado Warning	TAE	Holmes	26 min
Dec 14, 9:15 PM CST	Tornado Warning	TAE	Leon, Wakulla	30 min
Dec 14, 9:22 PM CST	Special Marine Warning	TAE		3 hr
Dec 14, 9:40 PM CST	Special Weather Statement	TAE	Leon	35 min
Dec 14, 10:21 PM CST	Special Weather Statement	TAE	Washington	24 min
Dec 14, 11:55 PM CST	Severe Thunderstorm Warning	TAE	Bay, Walton, Washington	95 min
Dec 15, 12:08 AM CST	Special Marine Warning	TAE		97 min
Dec 15, 12:10 AM CST	Special Marine Warning	TAE		95 min
Dec 15, 1:32 AM CST	Special Marine Warning	TAE		88 min
Dec 15, 1:44 AM CST	Special Marine Warning	TAE		66 min
Dec 15, 2:54 AM CST	Special Weather Statement	TAE	Gulf, Liberty	51 min
Dec 15, 3:00 AM CST	Special Marine Warning	TAE		90 min
Dec 15, 3:45 AM CST	Special Weather Statement	TAE	Franklin, Gadsden, Leon, Wakulla	45 min
Dec 15, 4:16 AM CST	Special Marine Warning	TAE		59 min
Dec 15, 4:36 AM CST	Special Marine Warning	TAE		39 min
Dec 15, 5:31 AM CST	Special Marine Warning	TAE		89 min
Dec 15, 5:32 AM CST	Special Marine Warning	TAE		27 min
Dec 15, 6:58 AM CST	Special Marine Warning	TAE		63 min
Dec 14, 7:22 PM CST	Severe Thunderstorm Warning	TAE	Early, Seminole	23 min
Dec 14, 7:45 PM CST	Special Weather Statement	TAE	Early	30 min
Dec 15, 4:27 AM CST	Tornado Warning	TAE	Colquitt, Worth	13 min
Dec 14, 7:03 PM CST	Special Weather Statement	TAE	Houston	27 min
Dec 14, 9:29 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva	10 min
Dec 14, 9:51 PM CST	Tornado Warning	TAE	Coffee, Dale, Geneva	15 min
Dec 14, 9:56 PM CST	Severe Thunderstorm Warning	TAE	Dale, Geneva, Henry, Houston	64 min

Nearby

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; radar from the NEXRAD Level II archive.