Alert archive / Alabama / Mesoscale Discussions in 2022

Mesoscale Discussion 367

March 30, 2022Bibb County, Dallas County, Perry County, Alabama

The Storm Prediction Center issued this mesoscale discussion at Mar 30, 2022, 8:44 PM CDT for Bibb County, Dallas County, Perry County, Alabama. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Mar 30, 2022, 8:44 PM CDT (01:44 UTC)
Expired: Mar 30, 2022, 10:45 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Tornado watch 80

Counties Bibb County, AL, Dallas County, AL, Perry County, AL

The radar

The Birmingham radar (KBMX), 95 km from the middle of the area, began a volume at 01:48 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

Birmingham, AL (KBMX), launched 00:00Z, 1.7 hours before the alert went out and 95 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: 4 J/kg
Mixed-layer CIN: -65 J/kg
Mixed-layer LCL: 1794 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 192 m²/s²
0-3 km storm-relative helicity: 449 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 30, 7:56 PM CDT	Mesoscale Discussion	SPC	Colbert, Lauderdale, Limestone, Madison	94 min
Mar 30, 8:33 PM CDT	Mesoscale Discussion	SPC	Greene, Pickens, Sumter	57 min
Mar 30, 8:50 PM CDT	Mesoscale Discussion	SPC	Choctaw, Washington	55 min
Mar 30, 9:57 PM CDT	Mesoscale Discussion	SPC	Baldwin, Escambia, Mobile	2 hr
Mar 30, 10:20 PM CDT	Mesoscale Discussion	SPC	Chilton, Shelby	85 min
Mar 30, 11:26 PM CDT	Tornado Watch	SPC	Barbour, Bullock, Calhoun, Chambers, Cherokee, Clay and 12 more	6 hr
Mar 30, 11:51 PM CDT	Mesoscale Discussion	SPC	Covington, Escambia, Geneva	114 min
Mar 31, 1:29 AM CDT	Mesoscale Discussion	SPC	Barbour, Bullock, Chambers, Clay, Cleburne, Lee and 4 more	2 hr
Mar 31, 3:54 AM CDT	Mesoscale Discussion	SPC	Henry, Houston, Russell	2 hr

Nearby

Mesoscale Discussions in Alabama, 2022 Every mesoscale discussion in 2022

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.