Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 189, NWS Tallahassee, FL

May 17, 2023Walton County, Florida; Geneva County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at May 17, 2023, 4:54 PM CDT for Walton County, Florida; Geneva County, Alabama. It was in force for 29 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 17, 2023, 4:54 PM CDT (21:54 UTC)
Expired: May 17, 2023, 5:23 PM CDT
In force: 29 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Geneva County, AL, Walton County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 9.9 hours before the alert went out and 171 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: 828 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 29 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 May 17, 3:08 PM CDT, 1 hour 46 minutes earlier.

Area forecast discussion, May 17, 3:08 PM CDT, 1 hour 46 minutes before

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In the hours before

Local storm report, May 17, 2:57 PM CDT, 1 hour 57 minutes before

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Special weather statement, May 17, 3:35 PM CDT, 1 hour 19 minutes before

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Special weather statement, May 17, 3:45 PM CDT, 1 hour 9 minutes before

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Special weather statement, May 17, 4:21 PM CDT, 33 minutes before

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Special weather statement, May 17, 4:24 PM CDT, 30 minutes before

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Special weather statement, May 17, 4:38 PM CDT, 16 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
May 16, 7:33 PM CDT	Areal Flood Advisory	TAE	Holmes	117 min
May 17, 1:35 AM CDT	Rip Current Statement	TAE	Gulf	17 hr
May 17, 10:28 AM CDT	Special Weather Statement	TAE	Liberty	47 min
May 17, 10:28 AM CDT	Special Weather Statement	TAE	Liberty	47 min
May 17, 10:42 AM CDT	Special Weather Statement	TAE	Gadsden	48 min
May 17, 10:55 AM CDT	Special Weather Statement	TAE	Calhoun	50 min
May 17, 10:58 AM CDT	Special Marine Warning	TAE		52 min
May 17, 11:12 AM CDT	Special Weather Statement	TAE	Wakulla	33 min
May 17, 11:12 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	36 min
May 17, 11:22 AM CDT	Special Weather Statement	TAE	Wakulla	53 min
May 17, 11:36 AM CDT	Severe Thunderstorm Warning	TAE	Wakulla	26 min
May 17, 11:41 AM CDT	Special Weather Statement	TAE	Liberty	49 min
May 17, 11:44 AM CDT	Special Weather Statement	TAE	Leon	46 min
May 17, 11:51 AM CDT	Special Weather Statement	TAE	Lafayette	24 min
May 17, 11:56 AM CDT	Special Weather Statement	TAE	Jefferson	49 min
May 17, 12:00 PM CDT	Special Weather Statement	TAE	Washington	45 min
May 17, 12:04 PM CDT	Special Weather Statement	TAE	Jefferson	41 min
May 17, 12:10 PM CDT	Special Weather Statement	TAE	Leon	50 min
May 17, 12:20 PM CDT	Special Weather Statement	TAE	Leon	25 min
May 17, 12:28 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon	47 min
May 17, 12:39 PM CDT	Special Weather Statement	TAE	Wakulla	51 min
May 17, 12:43 PM CDT	Special Weather Statement	TAE	Madison	32 min
May 17, 12:54 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	36 min
May 17, 1:04 PM CDT	Special Weather Statement	TAE	Washington	41 min
May 17, 1:35 PM CDT	Special Weather Statement	TAE	Madison	40 min
May 17, 2:37 PM CDT	Special Weather Statement	TAE	Franklin	38 min
May 17, 3:35 PM CDT	Special Weather Statement	TAE	Bay	40 min
May 17, 4:38 PM CDT	Special Weather Statement	TAE	Holmes	52 min
May 17, 5:26 PM CDT	Areal Flood Advisory	TAE	Walton	2 hr
May 17, 5:29 PM CDT	Special Weather Statement	TAE	Holmes	31 min
May 16, 7:18 PM CDT	Special Weather Statement	TAE	Lee, Quitman, Randolph, Terrell	42 min
May 16, 8:15 PM CDT	Special Weather Statement	TAE	Calhoun, Dougherty, Lee, Terrell	45 min
May 17, 12:51 PM CDT	Special Weather Statement	TAE	Thomas	39 min
May 17, 12:58 PM CDT	Areal Flood Advisory	TAE	Grady, Thomas	2 hr
May 17, 1:18 PM CDT	Severe Thunderstorm Warning	TAE	Brooks, Colquitt, Cook, Lowndes, Thomas	42 min
May 17, 1:19 PM CDT	Flash Flood Warning	TAE	Thomas	3 hr
May 17, 1:42 PM CDT	Areal Flood Advisory	TAE	Brooks, Thomas	2 hr
May 17, 1:57 PM CDT	Special Weather Statement	TAE	Lowndes	48 min
May 17, 2:07 PM CDT	Special Weather Statement	TAE	Lanier	38 min
May 17, 2:26 PM CDT	Special Weather Statement	TAE	Lanier	49 min
May 17, 2:46 PM CDT	Special Weather Statement	TAE	Berrien, Lanier	44 min
May 17, 4:21 PM CDT	Special Weather Statement	TAE	Quitman	39 min
May 17, 4:24 PM CDT	Special Weather Statement	TAE	Clay	51 min
May 17, 5:01 PM CDT	Special Weather Statement	TAE	Clay, Quitman, Randolph, Terrell	44 min
May 17, 5:38 PM CDT	Special Weather Statement	TAE	Calhoun, Clay, Early	37 min
May 17, 5:44 PM CDT	Special Weather Statement	TAE	Lee, Randolph, Terrell	46 min
May 17, 6:59 PM CDT	Special Weather Statement	TAE	Early	46 min
May 17, 3:45 PM CDT	Special Weather Statement	TAE	Henry	45 min
May 17, 3:54 PM CDT	Severe Thunderstorm Warning	TAE	Dale, Henry	30 min
May 17, 5:05 PM CDT	Special Weather Statement	TAE	Coffee	40 min
May 17, 5:38 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	52 min
May 17, 5:47 PM CDT	Special Weather Statement	TAE	Coffee	43 min
May 17, 5:53 PM CDT	Areal Flood Advisory	TAE	Coffee, Dale	112 min
May 17, 6:03 PM CDT	Special Weather Statement	TAE	Dale	42 min
May 17, 6:24 PM CDT	Special Weather Statement	TAE	Dale, Henry	51 min

Nearby

Severe Thunderstorm Warnings in Florida, 2023 Severe Thunderstorm Warnings in Alabama, 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.