Alert archive / Alabama / Tornado Warnings in 1991

Tornado Warning 14, NWS Birmingham, AL

April 28, 1991Tuscaloosa County, Alabama

NWS Birmingham, AL issued this tornado warning at Apr 28, 1991, 12:09 PM CDT for Tuscaloosa County, Alabama. It was in force for 21 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 28, 1991, 12:09 PM CDT (17:09 UTC)
Expired: Apr 28, 1991, 12:30 PM CDT
In force: 21 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Tuscaloosa County, AL

What was reported inside it

Time	Report	Where	Remark
Apr 28, 12:20 PM CDT	Thunderstorm Wind 0	Tuscaloosa, AL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Centreville/Bibb, AL (KCKL), launched 12:00Z, 5.2 hours before the alert went out and 53 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: 1688 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 596 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 159 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 1.8
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Apr 28, 8:25 AM CDT, 3 hours 44 minutes before

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Special weather statement, Apr 28, 8:26 AM CDT, 3 hours 43 minutes before

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Local storm report, Apr 28, 11:26 AM CDT, 43 minutes before

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The office that day

Everything else NWS Birmingham, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 28, 1:22 AM CDT	Severe Thunderstorm Warning	BMX	Fayette, Lamar	53 min
Apr 28, 1:40 AM CDT	Severe Thunderstorm Warning	BMX	Franklin	65 min
Apr 28, 2:20 AM CDT	Severe Thunderstorm Warning	BMX	Jefferson, Walker	40 min
Apr 28, 9:15 AM CDT	Severe Thunderstorm Warning	BMX	Lamar, Pickens	60 min
Apr 28, 10:54 AM CDT	Severe Thunderstorm Warning	BMX	Pickens	51 min
Apr 28, 11:04 AM CDT	Severe Thunderstorm Warning	BMX	Greene	56 min
Apr 28, 11:32 AM CDT	Severe Thunderstorm Warning	BMX	Tuscaloosa	58 min
Apr 28, 11:43 AM CDT	Severe Thunderstorm Warning	BMX	Hale	47 min
Apr 28, 1:01 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair, Shelby	44 min
Apr 28, 1:22 PM CDT	Severe Thunderstorm Warning	BMX	Talladega	53 min
Apr 28, 1:22 PM CDT	Severe Thunderstorm Warning	BMX	Chilton	53 min
Apr 28, 2:00 PM CDT	Severe Thunderstorm Warning	BMX	Clay	45 min
Apr 28, 2:06 PM CDT	Severe Thunderstorm Warning	BMX	Calhoun, Cleburne	54 min
Apr 28, 2:25 PM CDT	Severe Thunderstorm Warning	BMX	Randolph	50 min
Apr 28, 2:39 PM CDT	Severe Thunderstorm Warning	BMX	Greene	51 min

Nearby

Tornado Warnings in Alabama, 1991 Every tornado warning in 1991 Tornadoes in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.