Alert archive / Minnesota / Tornado Watches in 2024

Tornado Watch 406

June 12, 202412 counties in Minnesota; Burnett County, Polk County, Wisconsin

The Storm Prediction Center issued this tornado watch at Jun 12, 2024, 6:52 PM CDT for 12 counties in Minnesota; Burnett County, Polk County, Wisconsin. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jun 12, 2024, 6:52 PM CDT (23:52 UTC)
Expired: Jun 12, 2024, 9:27 PM CDT
In force: 3 hr
Issued by: the Storm Prediction Center
Largest hail expected: 3 in
Strongest gust expected: 60 kt

Counties Aitkin County, MN, Benton County, MN, Carlton County, MN, Chisago County, MN, Crow Wing County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Pine County, MN, Sherburne County, MN, Stearns County, MN, Burnett County, WI, Polk County, WI

The radar

The Minneapolis radar (KMPX), 134 km from the middle of the area, began a volume at 23:52 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: 20%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 20%
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

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

Issued	Product	Office	Counties	Lasted
Jun 12, 7:02 PM CDT	Tornado Warning	MPX	Stearns	28 min
Jun 12, 7:13 PM CDT	Tornado Warning	DLH	Aitkin	32 min
Jun 12, 7:22 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Pine, Saint Louis	38 min
Jun 12, 7:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DLH	Aitkin, Carlton, Crow Wing, Pine	48 min
Jun 12, 7:27 PM CDT	Severe Thunderstorm Warning	MPX	Benton, Mille Lacs, Sherburne	48 min
Jun 12, 7:42 PM CDT	Tornado Warning Tornado observed	DLH	Aitkin, Pine	21 min
Jun 12, 7:45 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne	30 min
Jun 12, 7:59 PM CDT	Severe Thunderstorm Warning	MPX	Chisago, Isanti	31 min
Jun 12, 8:11 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DLH	Aitkin, Carlton, Pine	49 min
Jun 12, 8:15 PM CDT	Tornado Warning	MPX	Chisago, Isanti	14 min
Jun 12, 8:54 PM CDT	Severe Thunderstorm Warning Considerable damage threat	DLH	Pine	19 min
Jun 12, 8:55 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Isanti, Sherburne	35 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, 11.9 hours before the alert went out and 134 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: 2495 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 7:16 AM CDT	Mesoscale Discussion	SPC	Big Stone, Brown, Chippewa, Cottonwood, Jackson, Kandiyohi and 11 more	89 min
Jun 12, 2:33 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Becker, Beltrami, Benton, Carlton and 25 more	117 min
Jun 12, 2:34 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Cottonwood, Dodge, Faribault, Fillmore and 18 more	116 min
Jun 12, 3:32 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Becker, Beltrami, Benton, Big Stone, Carlton and 36 more	6 hr
Jun 12, 5:35 PM CDT	Mesoscale Discussion	SPC	Aitkin, Benton, Carlton, Cass, Crow Wing, Douglas and 12 more	85 min
Jun 12, 6:31 PM CDT	Mesoscale Discussion	SPC	Aitkin, Benton, Carlton, Crow Wing, Kanabec, Mille Lacs and 3 more	59 min
Jun 12, 4:51 PM CDT	Mesoscale Discussion	SPC	Dane, Green, Iowa, Kenosha, Lafayette, Racine and 2 more	2 hr

Nearby

Tornado Watches in Minnesota, 2024 Tornado Watches in Wisconsin, 2024 Every tornado watch in 2024

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.