Alert archive / Alabama / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 107, NWS Birmingham, AL

June 22, 1990Lamar County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 22, 1990, 6:57 AM CDT for Lamar County, Alabama. It was in force for 23 min.

The area

The counties it named.

The facts

Issued: Jun 22, 1990, 6:57 AM CDT (11:57 UTC)
Expired: Jun 22, 1990, 7:20 AM CDT
In force: 23 min
Issued by: NWS Birmingham, AL
Area: Whole counties

County Lamar County, AL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 12.0 hours before the alert went out and 206 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3569 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 severe thunderstorm 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, Jun 22, 6:06 AM CDT, 51 minutes before

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Special weather statement, Jun 22, 6:55 AM CDT, 2 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
Jun 22, 3:56 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	34 min
Jun 22, 4:02 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Tuscaloosa	43 min
Jun 22, 4:18 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	42 min
Jun 22, 4:27 PM CDT	Severe Thunderstorm Warning	BMX	St. Clair	48 min
Jun 22, 4:38 PM CDT	Severe Thunderstorm Warning	BMX	Bibb, Hale	37 min
Jun 22, 5:01 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	29 min
Jun 22, 5:05 PM CDT	Severe Thunderstorm Warning	BMX	Shelby	40 min
Jun 22, 5:47 PM CDT	Tornado Warning	BMX	Hale	28 min
Jun 22, 5:55 PM CDT	Tornado Warning	BMX	Perry	35 min
Jun 22, 6:57 PM CDT	Severe Thunderstorm Warning	BMX	Marengo	48 min

Nearby

Severe Thunderstorm Warnings in Alabama, 1990 Every severe thunderstorm warning in 1990

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.