Alert archive / Texas / Mesoscale Discussions in 2022

Mesoscale Discussion 293

March 21, 202214 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 21, 2022, 4:39 PM CDT for 14 counties in Texas. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Mar 21, 2022, 4:39 PM CDT (21:39 UTC)
Expired: Mar 21, 2022, 5:45 PM CDT
In force: 66 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch unlikely
Chance of a watch: 20%

Counties Armstrong County, TX, Briscoe County, TX, Carson County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Hutchinson County, TX, Moore County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 49 km from the middle of the area, began a volume at 21:42 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

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.7 hours before the alert went out and 48 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: 1198 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 332 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 21, 11:57 AM CDT	Mesoscale Discussion	SPC	Coke, Concho, Crockett, Irion, Menard, Nolan and 6 more	2 hr
Mar 21, 1:29 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Cottle, Eastland, Erath and 17 more	2 hr
Mar 21, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Callahan, Childress, Clay, Collingsworth and 15 more	6 hr
Mar 21, 2:23 PM CDT	Mesoscale Discussion	SPC	Anderson, Bastrop, Bell, Bosque, Brazos, Burleson and 34 more	2 hr
Mar 21, 3:14 PM CDT	Tornado Watch	SPC	Anderson, Austin, Bastrop, Bell, Bexar, Blanco and 61 more	10 hr
Mar 21, 5:32 PM CDT	Mesoscale Discussion	SPC	Anderson, Austin, Bastrop, Bell, Blanco, Bosque and 52 more	88 min

Nearby

Mesoscale Discussions in Texas, 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.