Alert archive / Minnesota / Tornado Watches in 2025

Tornado Watch 251

May 15, 202535 counties in Minnesota; 24 counties in Wisconsin

The Storm Prediction Center issued this tornado watch at May 15, 2025, 12:46 PM CDT for 35 counties in Minnesota; 24 counties in Wisconsin. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
May 15, 2025, 12:46 PM CDT (17:46 UTC)
Expired
May 15, 2025, 7:28 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
3 in
Strongest gust expected
60 kt
All 59 counties

Aitkin County, MN, Anoka County, MN, Benton County, MN, Carver County, MN, Cass County, MN, Chisago County, MN, Crow Wing County, MN, Dakota County, MN, Douglas County, MN, Goodhue County, MN, Grant County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Otter Tail County, MN, Pine County, MN, Pope County, MN, Ramsey County, MN, Scott County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Wabasha County, MN, Wadena County, MN, Washington County, MN, Wilkin County, MN, Winona County, MN, Wright County, MN, Ashland County, WI, Barron County, WI, Bayfield County, WI, Buffalo County, WI, Burnett County, WI, Chippewa County, WI, Clark County, WI, Douglas County, WI, Dunn County, WI, Eau Claire County, WI, Iron County, WI, Jackson County, WI, La Crosse County, WI, Monroe County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Taylor County, WI, Trempealeau County, WI, Washburn County, WI

The radar

The Minneapolis radar (KMPX), 78 km from the middle of the area, began a volume at 17:47 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
40%
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

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

IssuedProductOfficeCountiesLasted
May 15, 1:17 PM CDTTornado WarningMPXSwift28 min
May 15, 1:27 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Le Sueur, Rice, Scott, Steele33 min
May 15, 1:33 PM CDTSevere Thunderstorm WarningMPXMeeker, Wright27 min
May 15, 1:36 PM CDTSevere Thunderstorm WarningMPXCarver, Wright24 min
May 15, 1:37 PM CDTTornado WarningMPXPope, Stevens, Swift38 min
May 15, 1:48 PM CDTTornado WarningMPXScott10 min
May 15, 1:55 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Hennepin, Ramsey, Rice, Scott and 1 more35 min
May 15, 2:14 PM CDTSevere Thunderstorm WarningARXOlmsted, Wabasha31 min
May 15, 2:15 PM CDTTornado WarningDLHCrow Wing26 min
May 15, 2:21 PM CDTTornado WarningFGFGrant, Otter Tail, Wilkin39 min
May 15, 2:25 PM CDTTornado WarningMPXAnoka, Hennepin, Ramsey20 min
May 15, 2:31 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Ramsey, Washington44 min
May 15, 2:41 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Hennepin, Isanti, Kanabec, Mille Lacs and 3 more49 min
May 15, 2:44 PM CDTSevere Thunderstorm WarningARXWabasha46 min
May 15, 2:49 PM CDTTornado WarningFGFWadena41 min
May 15, 2:52 PM CDTTornado Warning Tornado observedMPXStearns, Todd23 min
May 15, 2:53 PM CDTTornado WarningARXWabasha22 min
May 15, 2:53 PM CDTTornado WarningMPXPierce22 min
May 15, 2:56 PM CDTSevere Thunderstorm WarningARXWinona34 min
May 15, 3:01 PM CDTTornado WarningMPXDunn, Pepin, Pierce14 min
May 15, 3:06 PM CDTTornado WarningMPXMille Lacs24 min
May 15, 3:07 PM CDTTornado WarningMPXSaint Croix23 min
May 15, 3:10 PM CDTTornado WarningARXBuffalo20 min
May 15, 3:15 PM CDTTornado WarningMPXDunn, Pepin, Pierce30 min
May 15, 3:25 PM CDTSevere Thunderstorm WarningDLHAitkin35 min
May 15, 3:25 PM CDTTornado WarningMPXPolk, Saint Croix35 min
May 15, 3:28 PM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau47 min
May 15, 3:30 PM CDTTornado WarningMPXChippewa, Dunn, Eau Claire, Pepin30 min
May 15, 3:34 PM CDTSevere Thunderstorm WarningARXHouston, Winona20 min
May 15, 3:34 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs24 min
May 15, 3:37 PM CDTTornado WarningMPXBenton, Morrison, Stearns23 min
May 15, 3:41 PM CDTTornado WarningMPXDunn20 min
May 15, 3:49 PM CDTTornado WarningMPXPolk26 min
May 15, 3:51 PM CDTSevere Thunderstorm WarningARXJackson24 min
May 15, 3:58 PM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn, Eau Claire, Pepin, Rusk47 min
May 15, 3:59 PM CDTSevere Thunderstorm WarningDLHAitkin, Carlton, Pine31 min
May 15, 3:59 PM CDTSevere Thunderstorm WarningARXJuneau, Monroe, Vernon46 min
May 15, 4:05 PM CDTTornado WarningMPXChippewa, Eau Claire25 min
May 15, 4:06 PM CDTSevere Thunderstorm WarningDLHPine24 min
May 15, 4:07 PM CDTSevere Thunderstorm WarningARXJackson, Monroe38 min
May 15, 4:12 PM CDTSevere Thunderstorm WarningARXClark, Jackson48 min
May 15, 4:16 PM CDTSevere Thunderstorm WarningMPXBarron, Polk29 min
May 15, 4:24 PM CDTSevere Thunderstorm WarningARXJackson, Juneau, Monroe51 min
May 15, 4:30 PM CDTTornado WarningARXClark45 min
May 15, 4:37 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHDouglas, Sawyer, Washburn38 min
May 15, 4:40 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHCarlton, Pine35 min
May 15, 4:43 PM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Eau Claire, Rusk47 min
May 15, 4:44 PM CDTSevere Thunderstorm WarningARXClark46 min
May 15, 4:57 PM CDTSevere Thunderstorm WarningARXClark, Taylor48 min
May 15, 5:00 PM CDTTornado WarningDLHCarlton, Pine30 min
May 15, 5:06 PM CDTTornado Warning Tornado observedARXClark39 min
May 15, 5:08 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHAshland, Bayfield, Douglas, Iron, Price, Sawyer and 1 more67 min
May 15, 5:19 PM CDTTornado WarningDLHAshland, Sawyer26 min
May 15, 5:36 PM CDTTornado WarningDLHAshland, Bayfield, Sawyer24 min
May 15, 5:42 PM CDTSevere Thunderstorm WarningARXTaylor33 min
May 15, 5:45 PM CDTTornado WarningARXTaylor30 min
May 15, 5:52 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHIron, Price23 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, 5.8 hours before the alert went out and 79 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2025-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 515 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2025-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
515 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 1:08 AM CDTMesoscale DiscussionSPCLincoln, Lyon, Murray, Nobles, Pipestone, Rock97 min
May 15, 1:36 AM CDTSevere Thunderstorm WatchSPCCottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more6 hr
May 15, 4:04 AM CDTMesoscale DiscussionSPCBig Stone, Brown, Chippewa, Cottonwood, Jackson, Kandiyohi and 16 more86 min
May 15, 7:23 AM CDTMesoscale DiscussionSPCBlue Earth, Brown, Carver, Chippewa, Cottonwood, Dakota and 28 more97 min
May 15, 12:08 PM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Carver, Chippewa, Chisago and 31 more3 hr
May 15, 1:42 PM CDTMesoscale DiscussionSPCAnoka, Carver, Dakota, Goodhue, Hennepin, Ramsey and 3 more63 min
May 15, 3:00 PM CDTMesoscale DiscussionSPCRamsey, Washington90 min
May 15, 2:14 PM CDTMesoscale DiscussionSPCAdams, Columbia, Crawford, Dane, Dodge, Grant and 13 more2 hr
May 15, 3:05 PM CDTTornado WatchSPCAdams, Brown, Calumet, Columbia, Crawford, Dane and 42 more6 hr
May 15, 5:36 PM CDTMesoscale DiscussionSPCCalumet, Dodge, Fond du Lac, Green Lake, Lincoln, Marathon and 10 more84 min
May 15, 6:07 PM CDTMesoscale DiscussionSPCDoor, Florence, Forest, Marinette, Vilas83 min

Nearby

Tornado Watches in Minnesota, 2025Tornado Watches in Wisconsin, 2025Every tornado watch in 2025

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.