Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 328, NWS Tallahassee, FL

June 18, 2023Holmes County, Walton County, Florida; 4 counties in Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 18, 2023, 1:31 PM CDT for Holmes County, Walton County, Florida; 4 counties in Alabama. It was in force for 59 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 18, 2023, 1:31 PM CDT (18:31 UTC)
Expired: Jun 18, 2023, 2:30 PM CDT
In force: 59 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Houston County, AL, Holmes County, FL, Walton County, FL

The radar

The Ft Rucker radar (KEOX), 51 km from the middle of the area, began a volume at 18:31 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
Jun 18, 11:56 AM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.5 hours before the alert went out and 162 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: 892 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.6

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 Jun 18, 12:59 PM CDT, 32 minutes earlier.

Area forecast discussion, Jun 18, 12:59 PM CDT, 32 minutes before

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In the hours before

Local storm report, Jun 18, 12:41 PM CDT, 50 minutes before

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Special weather statement, Jun 18, 12:42 PM CDT, 49 minutes before

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Local storm report, Jun 18, 1:31 PM CDT, 0 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
Jun 17, 7:26 PM CDT	Special Weather Statement	TAE	Jefferson	34 min
Jun 18, 11:32 AM CDT	Special Marine Warning	TAE		88 min
Jun 18, 11:39 AM CDT	Severe Thunderstorm Warning Considerable damage threat	TAE	Bay, Holmes, Walton, Washington	66 min
Jun 18, 12:29 PM CDT	Severe Thunderstorm Warning Considerable damage threat	TAE	Bay, Calhoun, Gulf, Washington	61 min
Jun 18, 12:42 PM CDT	Special Weather Statement	TAE	Washington	33 min
Jun 18, 12:57 PM CDT	Special Marine Warning	TAE		93 min
Jun 18, 1:24 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Gulf	51 min
Jun 18, 1:56 PM CDT	Special Weather Statement	TAE	Franklin	34 min
Jun 18, 2:15 PM CDT	Special Marine Warning	TAE		56 min
Jun 18, 2:28 PM CDT	Special Weather Statement	TAE	Franklin	32 min
Jun 18, 2:28 PM CDT	Severe Thunderstorm Warning	TAE	Holmes, Jackson, Walton, Washington	62 min
Jun 18, 3:09 PM CDT	Special Marine Warning	TAE		96 min
Jun 18, 3:24 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson, Liberty	66 min
Jun 18, 3:58 PM CDT	Special Weather Statement	TAE	Jefferson	32 min
Jun 18, 4:12 PM CDT	Special Marine Warning	TAE		63 min
Jun 18, 4:28 PM CDT	Special Weather Statement	TAE	Taylor	32 min
Jun 18, 4:55 PM CDT	Special Weather Statement	TAE	Taylor	35 min
Jun 18, 5:29 PM CDT	Special Weather Statement	TAE	Madison	16 min
Jun 18, 5:40 AM CDT	Dense Fog Advisory	TAE	Baker, Calhoun, Clay, Decatur, Dougherty, Early and 6 more	3 hr
Jun 18, 3:07 PM CDT	Special Weather Statement	TAE	Early, Miller	38 min
Jun 18, 3:22 PM CDT	Severe Thunderstorm Warning	TAE	Baker, Early, Miller, Seminole	53 min
Jun 18, 3:32 PM CDT	Severe Thunderstorm Warning	TAE	Baker, Calhoun, Dougherty, Lee, Randolph, Terrell	19 min
Jun 18, 3:44 PM CDT	Areal Flood Advisory	TAE	Early, Miller	2 hr
Jun 18, 4:07 PM CDT	Severe Thunderstorm Warning	TAE	Decatur, Seminole	20 min
Jun 18, 4:16 PM CDT	Special Weather Statement	TAE	Ben Hill, Berrien, Colquitt, Cook, Irwin, Mitchell and 3 more	29 min
Jun 18, 4:27 PM CDT	Special Weather Statement	TAE	Grady, Thomas	48 min
Jun 18, 4:45 PM CDT	Special Weather Statement	TAE	Ben Hill, Berrien, Irwin	30 min
Jun 18, 5:12 PM CDT	Special Weather Statement	TAE	Ben Hill, Irwin	48 min
Jun 18, 5:42 PM CDT	Special Weather Statement	TAE	Lanier	33 min
Jun 18, 2:10 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	35 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2023 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.