Alert archive / Alabama / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 17, NWS Tallahassee, FL

January 12, 2023Henry County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Jan 12, 2023, 11:47 AM CST for Henry County, Alabama. It was in force for 43 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: Jan 12, 2023, 11:47 AM CST (17:47 UTC)
Expired: Jan 12, 2023, 12:30 PM CST
In force: 43 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Henry County, AL

The radar

The Ft Rucker radar (KEOX), 22 km from the middle of the area, began a volume at 17:47 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, 5.8 hours before the alert went out and 153 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: 233 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 605 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

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 Jan 12, 8:52 AM CST, 2 hours 55 minutes earlier.

Area forecast discussion, Jan 12, 8:52 AM CST, 2 hours 55 minutes before

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In the hours before

Special weather statement, Jan 12, 11:13 AM CST, 34 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
Jan 12, 2:11 AM CST	High Surf Advisory	TAE	Bay, Gulf, Walton	28 hr
Jan 12, 2:13 AM CST	Wind Advisory	TAE	Bay, Calhoun, Holmes, Jackson, Walton, Washington	19 hr
Jan 12, 1:30 PM CST	Special Marine Warning	TAE		90 min
Jan 12, 2:44 PM CST	Special Marine Warning	TAE		91 min
Jan 12, 3:09 PM CST	Severe Thunderstorm Warning	TAE	Franklin, Gulf, Liberty	36 min
Jan 12, 4:03 PM CST	Special Weather Statement	TAE	Leon	42 min
Jan 12, 5:15 PM CST	Severe Thunderstorm Warning	TAE	Holmes, Walton	45 min
Jan 12, 5:47 PM CST	Severe Thunderstorm Warning	TAE	Holmes, Jackson	58 min
Jan 12, 5:52 PM CST	Special Marine Warning	TAE		113 min
Jan 12, 12:01 PM CST	Special Weather Statement	TAE	Clay, Quitman, Randolph	44 min
Jan 12, 12:44 PM CST	Special Weather Statement	TAE	Randolph	46 min
Jan 12, 3:38 PM CST	Severe Thunderstorm Warning	TAE	Clay, Quitman	52 min
Jan 12, 4:03 PM CST	Tornado Warning	TAE	Clay, Quitman	27 min
Jan 12, 4:15 PM CST	Severe Thunderstorm Warning	TAE	Clay, Quitman, Randolph, Terrell	45 min
Jan 12, 4:39 PM CST	Special Weather Statement	TAE	Thomas	51 min
Jan 12, 4:47 PM CST	Severe Thunderstorm Warning	TAE	Lee, Terrell	43 min
Jan 12, 5:00 PM CST	Severe Thunderstorm Warning	TAE	Calhoun, Clay, Early, Randolph	45 min
Jan 12, 5:19 PM CST	Tornado Warning	TAE	Early	26 min
Jan 12, 5:36 PM CST	Severe Thunderstorm Warning	TAE	Ben Hill, Lee, Turner, Worth	24 min
Jan 12, 5:42 PM CST	Severe Thunderstorm Warning Considerable damage threat	TAE	Baker, Calhoun, Clay, Dougherty, Early, Lee and 3 more	48 min
Jan 12, 11:13 AM CST	Special Weather Statement	TAE	Dale, Henry	47 min
Jan 12, 11:26 AM CST	Severe Thunderstorm Warning	TAE	Dale, Henry	34 min
Jan 12, 12:32 PM CST	Special Weather Statement	TAE	Henry	28 min
Jan 12, 2:28 PM CST	Severe Thunderstorm Warning Considerable damage threat	TAE	Coffee	47 min
Jan 12, 2:49 PM CST	Tornado Warning	TAE	Coffee	26 min
Jan 12, 3:05 PM CST	Severe Thunderstorm Warning Considerable damage threat	TAE	Coffee, Dale, Henry	40 min
Jan 12, 3:13 PM CST	Tornado Warning	TAE	Coffee, Dale	32 min
Jan 12, 3:43 PM CST	Tornado Warning	TAE	Henry	32 min
Jan 12, 4:31 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	29 min
Jan 12, 5:02 PM CST	Special Weather Statement	TAE	Geneva	43 min

Nearby

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; radar from the NEXRAD Level II archive.