Alert archive / Minnesota / Mesoscale Discussions in 2022

Mesoscale Discussion 548

April 23, 202210 counties in Minnesota; Grand Forks County, Steele County, Traill County, North Dakota

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2022, 6:16 PM CDT for 10 counties in Minnesota; Grand Forks County, Steele County, Traill County, North Dakota. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Apr 23, 2022, 6:16 PM CDT (23:16 UTC)
Expired: Apr 23, 2022, 7:15 PM CDT
In force: 59 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 147

Counties Becker County, MN, Beltrami County, MN, Clearwater County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Wadena County, MN, Grand Forks County, ND, Steele County, ND, Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 107 km from the middle of the area, began a volume at 23:19 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

International Fa, MN (KINL), launched 12:00Z, 11.3 hours before the alert went out and 242 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: 516 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 227 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
Apr 23, 12:03 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Brown, Chippewa, Clay, Cottonwood and 24 more	87 min
Apr 23, 12:55 PM CDT	Tornado Watch	SPC	Becker, Big Stone, Chippewa, Clay, Clearwater, Douglas and 16 more	6 hr
Apr 23, 2:10 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Faribault, Freeborn, Martin, Mower, Waseca	2 hr
Apr 23, 4:01 PM CDT	Severe Thunderstorm Watch	SPC	Blue Earth, Chisago, Dakota, Dodge, Faribault, Freeborn and 6 more	6 hr
Apr 23, 12:32 PM CDT	Mesoscale Discussion	SPC	Billings, Bowman, Burke, Divide, Dunn, Golden Valley and 5 more	5 hr

Nearby

Mesoscale Discussions in Minnesota, 2022 Mesoscale Discussions in North Dakota, 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.