Alert archive / Minnesota / Tornado Watches in 2022

Tornado Watch 147

April 23, 202222 counties in Minnesota; 10 counties in North Dakota; 4 counties in South Dakota

The Storm Prediction Center issued this tornado watch at Apr 23, 2022, 12:55 PM CDT for 22 counties in Minnesota; 10 counties in North Dakota; 4 counties in South Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Apr 23, 2022, 12:55 PM CDT (17:55 UTC)
Expired: Apr 23, 2022, 7:00 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 55 kt

All 36 counties

Becker County, MN, Big Stone County, MN, Chippewa County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Lac qui Parle County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Yellow Medicine County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Grand Forks County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Deuel County, SD, Grant County, SD, Marshall County, SD, Roberts County, SD

The radar

The Fargo/Grand Forks radar (KMVX), 71 km from the middle of the area, began a volume at 17:57 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 40%
One or more EF2 to EF5 tornadoes: 10%
Ten or more severe wind reports: 40%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 70%

Warnings issued inside it

13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Apr 23, 1:03 PM CDT	Flash Flood Warning	FGF	Clearwater, Polk, Red Lake	6 hr
Apr 23, 1:21 PM CDT	Severe Thunderstorm Warning	ABR	Big Stone, Traverse	24 min
Apr 23, 1:44 PM CDT	Severe Thunderstorm Warning	ABR	Marshall, Roberts	16 min
Apr 23, 1:50 PM CDT	Tornado Warning	FGF	Richland	40 min
Apr 23, 2:28 PM CDT	Tornado Warning	FGF	Cass, Ransom, Richland	47 min
Apr 23, 3:11 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Steele, Traill	49 min
Apr 23, 3:26 PM CDT	Tornado Warning	BIS	LaMoure, Stutsman	34 min
Apr 23, 3:30 PM CDT	Tornado Warning Tornado observed	FGF	Barnes	11 min
Apr 23, 3:56 PM CDT	Severe Thunderstorm Warning	FGF	Polk	49 min
Apr 23, 4:18 PM CDT	Flash Flood Warning	FGF	Cass, Grand Forks, Traill	6 hr
Apr 23, 5:22 PM CDT	Flash Flood Warning	FGF	Norman	6 hr
Apr 23, 5:36 PM CDT	Severe Thunderstorm Warning	FGF	Polk	24 min
Apr 23, 6:26 PM CDT	Flash Flood Warning	FGF	Polk	6 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 5.9 hours before the alert went out and 239 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: 569 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 778 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: -81 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.5

Open this sounding in Storm Lab

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, 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, 6:16 PM CDT	Mesoscale Discussion	SPC	Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Norman and 4 more	59 min
Apr 23, 12:32 PM CDT	Mesoscale Discussion	SPC	Billings, Bowman, Burke, Divide, Dunn, Golden Valley and 5 more	5 hr
Apr 22, 7:37 PM CDT	Mesoscale Discussion	SPC	Beadle, Brown, Buffalo, Clark, Dewey, Edmunds and 12 more	83 min
Apr 22, 10:10 PM CDT	Mesoscale Discussion	SPC	Bennett, Custer, Fall River, Oglala Lakota	2 hr

Nearby

Tornado Watches in Minnesota, 2022 Tornado Watches in North Dakota, 2022 Tornado Watches in South Dakota, 2022 Every tornado watch 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.