Alert archive / Minnesota / Tornado Warnings in 2025

Tornado Warning 13, NWS Twin Cities, MN

May 15, 2025Swift County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 15, 2025, 1:17 PM CDT for Swift County, Minnesota. It was in force for 28 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 15, 2025, 1:17 PM CDT (18:17 UTC)
Expired
May 15, 2025, 1:45 PM CDT
In force
28 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Swift County, MN

The radar

The Minneapolis radar (KMPX), 178 km from the middle of the area, began a volume at 18:20 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 was reported inside it

TimeReportWhereRemark
May 15, 1:28 PM CDTTORNADO3 Nw Danvers, MNVideo showed ground circulation. The tornado moved across a grove of trees and knocked down large branches. Rated EF-0 with maximum winds estimated at 75 mph. Path length 0.5 miles and maximum width 40 yards.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 15, 12:46 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.3 hours before the alert went out and 175 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°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

The text

As transmitted.

025 
WFUS53 KMPX 151817
TORMPX
MNC151-151845-
/O.NEW.KMPX.TO.W.0013.250515T1817Z-250515T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
117 PM CDT Thu May 15 2025

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  Central Swift County in west central Minnesota...

* Until 145 PM CDT.

* At 117 PM CDT, a severe thunderstorm capable of producing a 
  tornado was located 10 miles northeast of Milan, or 19 miles north 
  of Montevideo, moving north at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught
           without shelter. Mobile homes will be damaged or
           destroyed. Damage to roofs, windows and vehicles will
           occur. Tree damage is likely.

* Locations impacted include...
  Clontarf and Danvers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

&&

LAT...LON 4516 9564 4516 9587 4541 9592 4541 9568
TIME...MOT...LOC 1816Z 173DEG 34KT 4521 9576

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

BED
2 follow-up statements
655 
WWUS53 KMPX 151827
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
127 PM CDT Thu May 15 2025

MNC151-151845-
/O.CON.KMPX.TO.W.0013.000000T0000Z-250515T1845Z/
Swift MN-
127 PM CDT Thu May 15 2025

...TORNADO WARNING REMAINS IN EFFECT UNTIL 145 PM CDT FOR NORTH 
CENTRAL SWIFT COUNTY...

At 127 PM CDT, a confirmed tornado was located 8 miles west of 
Benson, or 21 miles south of Morris, moving north at 35 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed brief tornado touchdown that
         has since lifted. This storm is still capable of
         producing a tornado.

IMPACT...Flying debris will be dangerous to those caught without
         shelter. Mobile homes will be damaged or destroyed.
         Damage to roofs, windows and vehicles will occur. Tree
         damage is likely.

Locations impacted include...
  Clontarf and Danvers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to an interior room on the lowest floor of a well-built 
building away from windows. If you are outdoors, in a mobile home, 
or in a vehicle, move to the closest substantial shelter and protect 
yourself from flying debris.

&&

LAT...LON 4523 9566 4523 9584 4541 9592 4541 9568
TIME...MOT...LOC 1817Z 174DEG 30KT 4522 9576

TORNADO...OBSERVED
MAX HAIL SIZE...<1.00 IN

$$

BED
308 
WWUS53 KMPX 151839
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
139 PM CDT Thu May 15 2025

MNC151-151849-
/O.EXP.KMPX.TO.W.0013.000000T0000Z-250515T1845Z/
Swift MN-
139 PM CDT Thu May 15 2025

...TORNADO WARNING WILL EXPIRE AT 145 PM CDT FOR NORTH CENTRAL SWIFT 
COUNTY...

The Tornado Warning that was previously in effect has been reissued 
for Swift County and is in effect until 215 PM CDT. Please refer to 
that bulletin for the latest severe weather information.

A Tornado Watch remains in effect until 800 PM CDT Thursday for a 
portion of west central Minnesota.

&&

LAT...LON 4523 9566 4523 9584 4541 9592 4541 9568
TIME...MOT...LOC 1827Z 174DEG 30KT 4530 9577

$$

BED

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 14, 10:17 PM CDTWind AdvisoryMPXBlue Earth, Brown, Chippewa, Faribault, Freeborn, Lac qui Parle and 10 more45 hr
May 15, 3:52 AM CDTSpecial Weather StatementMPXLac qui Parle, Yellow Medicine23 min
May 15, 4:14 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine31 min
May 15, 4:27 AM CDTSpecial Weather StatementMPXChippewa, Swift, Yellow Medicine33 min
May 15, 5:00 AM CDTSpecial Weather StatementMPXChippewa, Kandiyohi, Redwood45 min
May 15, 5:29 AM CDTSpecial Weather StatementMPXRenville31 min
May 15, 5:34 AM CDTSevere Thunderstorm WarningMPXRedwood, Renville26 min
May 15, 6:06 AM CDTSpecial Weather StatementMPXRenville24 min
May 15, 9:23 AM CDTSpecial Weather StatementMPXIsanti37 min
May 15, 9:36 AM CDTSevere Thunderstorm WarningMPXIsanti, Mille Lacs, Sherburne24 min
May 15, 9:58 AM CDTSpecial Weather StatementMPXIsanti17 min
May 15, 10:24 AM CDTSpecial Weather StatementMPXKanabec21 min
May 15, 12:56 PM CDTSevere Thunderstorm WarningMPXLe Sueur19 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, 2:25 PM CDTTornado WarningMPXAnoka, Hennepin, Ramsey20 min
May 15, 2:31 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Ramsey, Washington44 min
May 15, 2:36 PM CDTSpecial Weather StatementMPXDouglas, Todd24 min
May 15, 2:41 PM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Hennepin, Isanti, Kanabec, Mille Lacs and 3 more49 min
May 15, 2:52 PM CDTTornado Warning Tornado observedMPXStearns, Todd23 min
May 15, 3:06 PM CDTTornado WarningMPXMille Lacs24 min
May 15, 3:13 PM CDTSpecial Weather StatementMPXTodd32 min
May 15, 3:26 PM CDTSpecial Weather StatementMPXKanabec19 min
May 15, 3:34 PM CDTSevere Thunderstorm WarningMPXKanabec, Mille Lacs24 min
May 15, 3:37 PM CDTTornado WarningMPXBenton, Morrison, Stearns23 min
May 15, 3:56 PM CDTSpecial Weather StatementMPXBenton, Morrison34 min
May 15, 4:22 PM CDTSpecial Weather StatementMPXMille Lacs38 min

Nearby

Tornado Warnings in Minnesota, 2025Every tornado warning in 2025Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.