Alert archive / Minnesota / Tornado Watches in 2022

Tornado Watch 203

May 11, 202240 counties in Minnesota; 14 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at May 11, 2022, 5:27 PM CDT for 40 counties in Minnesota; 14 counties in Wisconsin. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 11, 2022, 5:27 PM CDT (22:27 UTC)
Expired: May 12, 2022, 12:00 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 65 kt

All 54 counties

Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kandiyohi County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Swift County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Wright County, MN, Barron County, WI, Buffalo County, WI, Chippewa County, WI, Clark County, WI, Dunn County, WI, Eau Claire County, WI, Jackson County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI, Taylor County, WI, Trempealeau County, WI

The radar

The Minneapolis radar (KMPX), 6 km from the middle of the area, began a volume at 22:31 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: 60%
One or more EF2 to EF5 tornadoes: 20%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 60%
Ten or more severe hail reports: 60%
One or more hailstones of 2 inches or more: 60%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
May 11, 5:51 PM CDT	Severe Thunderstorm Warning	MPX	Redwood, Renville, Yellow Medicine	39 min
May 11, 5:55 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	65 min
May 11, 6:11 PM CDT	Tornado Warning	MPX	Brown, Redwood	34 min
May 11, 6:16 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Watonwan	44 min
May 11, 6:17 PM CDT	Severe Thunderstorm Warning	MPX	Renville	43 min
May 11, 6:24 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	36 min
May 11, 6:28 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Martin	62 min
May 11, 6:29 PM CDT	Tornado Warning	MPX	Brown, Watonwan	46 min
May 11, 6:31 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Nicollet, Renville, Sibley	59 min
May 11, 6:35 PM CDT	Tornado Warning	MPX	Renville	40 min
May 11, 6:40 PM CDT	Tornado Warning	MPX	Nicollet, Sibley	50 min
May 11, 6:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Blue Earth, Brown, Nicollet, Watonwan	53 min
May 11, 6:53 PM CDT	Tornado Warning	MPX	Martin, Watonwan	37 min
May 11, 6:59 PM CDT	Tornado Warning Tornado observed	MPX	McLeod, Renville, Sibley	46 min
May 11, 7:12 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Scott, Sibley	33 min
May 11, 7:12 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Blue Earth, Le Sueur, Nicollet	63 min
May 11, 7:20 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Meeker, Stearns, Wright	29 min
May 11, 7:21 PM CDT	Severe Thunderstorm Warning Destructive damage threat	MPX	Blue Earth, Le Sueur, Nicollet	39 min
May 11, 7:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Le Sueur, Rice, Scott	63 min
May 11, 7:31 PM CDT	Tornado Warning	MPX	Carver, Scott	44 min
May 11, 7:33 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Blue Earth, Faribault, Martin	42 min
May 11, 7:35 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Carver, McLeod, Wright	55 min
May 11, 7:38 PM CDT	Tornado Warning	MPX	Le Sueur, Rice	37 min
May 11, 7:41 PM CDT	Tornado Warning	MPX	Carver, Hennepin	34 min
May 11, 7:43 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Hennepin	47 min
May 11, 7:46 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Stearns, Wright	44 min
May 11, 7:58 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Dakota, Rice, Scott	47 min
May 11, 8:02 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne, Wright	43 min
May 11, 8:03 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Steele, Waseca	42 min
May 11, 8:09 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault	36 min
May 11, 8:09 PM CDT	Tornado Warning	MPX	Dakota	40 min
May 11, 8:13 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Anoka, Chisago, Ramsey, Washington	62 min
May 11, 8:23 PM CDT	Tornado Warning	MPX	Anoka, Hennepin, Ramsey	25 min
May 11, 8:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Dakota, Goodhue	63 min
May 11, 8:33 PM CDT	Tornado Warning	MPX	Blue Earth, Waseca	26 min
May 11, 8:37 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Freeborn	44 min
May 11, 8:40 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Chisago	65 min
May 11, 8:43 PM CDT	Severe Thunderstorm Warning	ARX	Dodge	36 min
May 11, 8:46 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Steele, Waseca	44 min
May 11, 8:48 PM CDT	Severe Thunderstorm Warning	MPX	Faribault	27 min
May 11, 9:13 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha	47 min
May 11, 9:20 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Waseca	25 min
May 11, 9:22 PM CDT	Tornado Warning	MPX	Goodhue	38 min
May 11, 9:48 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	27 min
May 11, 9:58 PM CDT	Severe Thunderstorm Warning	ARX	Wabasha	77 min
May 11, 10:00 PM CDT	Severe Thunderstorm Warning	MPX	Pepin	30 min
May 11, 10:20 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Dunn, Eau Claire, Pepin	55 min
May 11, 10:22 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Rusk	38 min
May 11, 10:53 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire, Rusk	67 min
May 11, 11:01 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	44 min

Discussions around it

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.5 hours before the alert went out and 5 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: 1699 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 216 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 6:32 AM CDT	Mesoscale Discussion	SPC	Dakota, Goodhue, Hennepin, Le Sueur, Ramsey, Rice and 3 more	88 min
May 11, 7:44 AM CDT	Mesoscale Discussion	SPC	Murray, Nobles, Pipestone, Rock	91 min
May 11, 12:50 PM CDT	Mesoscale Discussion	SPC	Brown, Cottonwood, Jackson, Lincoln, Lyon, Martin and 6 more	2 hr
May 11, 1:15 PM CDT	Tornado Watch	SPC	Blue Earth, Brown, Cottonwood, Faribault, Jackson, Lincoln and 9 more	8 hr
May 11, 3:52 PM CDT	Mesoscale Discussion	SPC	Brown, Chippewa, Cottonwood, Jackson, Lac qui Parle, Lincoln and 10 more	113 min
May 11, 5:50 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Carver, Chippewa, Cottonwood, Dakota and 30 more	85 min

Nearby

Tornado Watches in Minnesota, 2022 Tornado Watches in Wisconsin, 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.