Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 79, NWS Twin Cities, MN

June 10, 2026Chippewa County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 10, 2026, 1:19 AM CDT for Chippewa County, Swift County, Minnesota. It was in force for 41 min. 5 reports 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
Jun 10, 2026, 1:19 AM CDT (06:19 UTC)
Expired
Jun 10, 2026, 2:00 AM CDT
In force
41 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Damage threat
Destructive
Hail
1.0 in
Wind
80.0 mph

Counties Chippewa County, MN, Swift County, MN

The radar

The Sioux Falls radar (KFSD), 183 km from the middle of the area, began a volume at 06:21 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
Jun 10, 1:29 AM CDTTSTM WND DMGAppleton, MNDelayed report relayed from dispatch, time estimated from radar. Trees and powerlines down in Appleton.
Jun 10, 1:34 AM CDTTSTM WND DMGHolloway, MNDelayed report relayed from dispatch, time estimated from radar. Trees and powerlines down.
Jun 10, 1:40 AM CDTTSTM WND DMGDanvers, MNDelayed report relayed from dispatch, time estimated from radar. Trees and powerlines down.
Jun 10, 1:45 AM CDTTSTM WND DMG1 W Benson, MNDelayed report relayed from dispatch, time estimated from radar. Trees and powerlines down.
Jun 10, 1:45 AM CDTTSTM WND GST 692 W Benson, MNAWOS station KBBB Benson AP.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 5 storm reports to this severe thunderstorm warning; the first came 10 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 9, 9:05 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 6.3 hours before the alert went out and 188 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 00:00Z on 2026-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1680 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 00:00Z on 2026-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
1680 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1487 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.2

Open this sounding in Storm Lab

The text

As transmitted.

722 
WUUS53 KMPX 100619
SVRMPX
MNC023-151-100700-
/O.NEW.KMPX.SV.W.0079.260610T0619Z-260610T0700Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
119 AM CDT Wed Jun 10 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Chippewa County in west central Minnesota...
  Swift County in west central Minnesota...

* Until 200 AM CDT.

* At 119 AM CDT, a severe thunderstorm was located 8 miles south of
  Appleton, or 18 miles northwest of Montevideo, moving northeast at
  55 mph.

  THIS IS A DESTRUCTIVE STORM FOR MILAN, APPLETON, HOLLOWAY, LAKE
  OLIVER, DANVERS.

  HAZARD...80 mph wind gusts and small hail.

  SOURCE...Weather station reported.

  IMPACT...Flying debris will be dangerous to those caught without
           shelter. Mobile homes will be heavily damaged. Expect
           considerable damage to roofs, windows, and vehicles.
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Watson, Milan, Appleton, Appleton Airport, Hagen, Big Bend City,
  Holloway, Lake Oliver, Danvers, Benson Airport, Benson, Clontarf
  and Lake Hassel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a dangerous situation with winds expected to produce damage
similar to a tornado. Move to an interior room on the lowest floor of
a well-built structure. Mobile homes and high profile vehicles are at
an enhanced risk for damage.

&&

LAT...LON 4524 9610 4524 9612 4541 9612 4541 9549
      4497 9581 4498 9582 4500 9583 4501 9586
      4502 9587 4502 9588 4503 9588 4511 9600
      4512 9600 4512 9601 4515 9604 4517 9609
      4518 9610
TIME...MOT...LOC 0618Z 212DEG 46KT 4508 9603

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

CTG
1 follow-up statement
045 
WWUS53 KMPX 100659
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
159 AM CDT Wed Jun 10 2026

MNC023-151-100709-
/O.EXP.KMPX.SV.W.0079.000000T0000Z-260610T0700Z/
Chippewa MN-Swift MN-
159 AM CDT Wed Jun 10 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 2 AM CDT FOR
NORTHWESTERN CHIPPEWA AND SWIFT COUNTIES...

The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However, gusty
winds are still possible with this thunderstorm.

&&

LAT...LON 4524 9610 4524 9612 4541 9612 4541 9549
      4497 9581 4498 9582 4500 9583 4501 9586
      4502 9587 4502 9588 4503 9588 4511 9600
      4512 9600 4512 9601 4515 9604 4517 9609
      4518 9610
TIME...MOT...LOC 0619Z 212DEG 46KT 4509 9602

$$

CTG

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 10, 12:58 AM CDT, 21 minutes earlier. Its key messages:

  • Severe thunderstorms likely tonight. Damaging wind is the primary threat, especially across western and central Minnesota.
  • Another round of severe thunderstorms Wednesday afternoon. All severe modes are possible including damaging wind, large hail, and tornadoes. Greatest severe threat favors eastern Minnesota/western Wisconsin Wed afternoon into Wed evening.
  • Slightly cooler than normal temperatures forecast for Thursday through the weekend.
Area forecast discussion, Jun 10, 12:58 AM CDT, 21 minutes before
Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
1258 AM CDT Wed Jun 10 2026

.KEY MESSAGES...

- Severe thunderstorms likely tonight. Damaging wind is the
  primary threat, especially across western and central
  Minnesota.

- Another round of severe thunderstorms Wednesday afternoon. All
  severe modes are possible including damaging wind, large hail,
  and tornadoes. Greatest severe threat favors eastern
  Minnesota/western Wisconsin Wed afternoon into Wed evening.

- Slightly cooler than normal temperatures forecast for Thursday
  through the weekend.

&&

.DISCUSSION...
Issued at 1244 AM CDT Wed Jun 10 2026

The next 24 hours will feature the potential for multiple rounds
of severe thunderstorms across the Upper Midwest. Current
regional radar mosaic highlights a line of thunderstorms
stretching from Winnipeg south through the Dakotas and into
northern Nebraska. A decaying MCS moving northeast out of
Nebraska has begun to merge with the easterly moving convection
over SoDak. These storms will then track ENE into SW/W MN
shortly by 1 AM and continue through the MPX forecast area
tonight. A Severe Thunderstorm Watch is in effect across
portions of western MN until 4 AM. Locations further east may
need an additional watch, but that will be determined at a later
time.

Tonight's severe threat comes in the form of a squall line that
is driven by a potent 50+ knot low level jet. The squall line
will have a reservoir of abundant instability to tap into with
guidance suggesting 2000+ J/Kg MLCAPE present over W & C MN. A
quick mesoanalysis highlights 1500 J/Kg DCAPE over W MN, 35-40
kts of effective wind shear, and steep mid-level lapse rates.
While the environment will gradually wane, the dynamics
associated with the LLJ should support a severe threat through
much of tonight. Damaging wind gusts looks to be the main severe
weather hazard with the line of storms, but a few quick QLCS
tornadoes can't be ruled out within the line. The apex of the
squall line should track from W MN through E MN and into W WI by
daybreak. How much severe threat will the line have when it
makes it into the Twin Cities and western Wisconsin is difficult
to say, but there should be some severe potential despite the
early morning time frame.

This line has a history of producing severe wind gusts of 75+
MPH over SoDak earlier tonight and is moving into a more
favorable low level kinematic environment that short lived QLCS
tornadoes will be possible, especially over W MN. My immediate
concern is that the merger between the north-northeast moving
decaying MCS/MCV and the easterly moving squall will merge and
enhance the wind threat... at least initially across far E SD
and W MN.

On Wednesday, we'll dry out by mid-morning in the wake of the
MCS. How much convective debris is left over to limit the
atmospheric recovery will ultimately impact Wednesday
afternoon's severe weather potential. Guidance does limit how
much additional convection fires up through the morning hours,
allowing 2000 to 3000+ J/Kg MLCAPE to pool ahead of the
approaching cold front. This will support a higher end severe
weather environment with 40+ kts of bulk shear, sufficient lapse
rates, and favorable wind profile aloft. There are a few
questions that remain less certain. When and where will the
initial storms develop in the afternoon? Current thoughts are
for convection to fire early afternoon along I-35 before moving
into W WI. Initial storms will be supercells capable of all
severe modes including large to very large hail, damaging winds,
and tornadoes are all possible. A favorable environment for
tornadoes will be in place across W WI that will have the
potential for a few strong Tornadoes. Initial supercells will
quickly grow upscale into a linear complex that'll primarily
pose a damaging wind threat across W WI. Severe threat wraps up
late Wednesday evening and we'll look to dry out & cool down
overnight.

Another chance of precipitation arrive behind the cold front
Thursday afternoon. Severe threat will be low, but an additional
round of rain is likely. A much cooler & drier airmass will
settle in Friday and stick around for the weekend. The mid level
ridge will shift from the Upper Midwest downstream to the
eastern CONUS. This will place zonal westerly flow over the
northern Plains and Upper Midwest. Temperatures will run 5 to 10
degrees below normal (that's high temperatures in near 70) with
lows in the 40s and 50s... a welcome break for the AC units
across MN and W WI. A few additional chances of rain will exist,
primarily on Saturday, but over a much drier pattern will
persist into next week.

&&

.AVIATION /06Z TAFS THROUGH 12Z THURSDAY/...
Issued at 1244 AM CDT Wed Jun 10 2026

VFR to start for all sites but lower clouds/precip will develop
fairly quickly early in this TAF duration as confidence remains
fairly high that an MCS will traverse MN-WI overnight,
generally in the 06z-10z timeframe from western TAF sites to
eastern TAF sites. Conditions will likely drop to IFR, mainly
due to heavy rain with the thunderstorms associated with the
overnight system. In addition strong/gusty winds with a sharp
directional change is possible as the system moves across any
given terminal. Have kept the TS mention to just the TEMPO so as
to not thrust a 3-4hr solid TS window at any given site.
Conditions will temper down just prior to daybreak, with VFR
conditions likely for much of the day today. Another round of
thunderstorms looks to develop in far eastern MN late this
afternoon then progress eastward across WI this evening. The
Wednesday system looks to be stronger than the one for tonight,
but the Wednesday system looks to more heavily impact the WI
sites, possibly as far west as MSP.

KMSP...First round of storms looks to move across MSP in the
08z-10z timeframe per decent multi-CAM agreement. Ceilings
likely down to MVFR while visibilities drop to IFR-or-lower,
dependent on rainfall intensity. Gusty winds and frequent
lightning are likely to come with the thunderstorms. These
overnight storms are expected to conclude prior to the
Wednesday morning push, resulting in VFR conditions through mid-
Wednesday afternoon. Another round of storms looks to develop
over eastern MN late Wednesday afternoon and slide east. Still
some uncertainty as to whether MSP will be impacted, thus have
maintained the PROB30. Even if the storms do not directly impact
MSP, routes eastward of MSP will be impacted.

/OUTLOOK FOR KMSP/
THU...VFR. -RA likely. Slight chc PM -TSRA. Wind SW 5-10kts
becoming W 10-15G25kts.
FRI...VFR. Wind W 15G30kts.
SAT...VFR. Wind NW 5-10kts.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
MN...None.
WI...None.

&&

DISCUSSION...BPH
AVIATION...JPC
Hazardous weather outlook, Jun 9, 11:49 PM CDT, 1 hour 30 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
1149 PM CDT Tue Jun 9 2026

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
102200-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
1149 PM CDT Tue Jun 9 2026

This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.

.DAY ONE...Tonight.

Strong to severe thunderstorms can be expected, starting late this
evening in western Minnesota, steadily spreading east into eastern
Minnesota and western Wisconsin through the early morning hours. The
primary severe threat will be damaging winds, with possibly large
hail or a tornado.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

High heat and humidity are expected Wednesday with heat indices
into the 90s to around 100 across southern and eastern Minnesota
into western Wisconsin.

Severe thunderstorms are possible primarily along and east of the
I-35 corridor Wednesday. Severe thunderstorms will have the
potential to produce large hail, damaging winds, and tornadoes
Wednesday afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will likely be needed overnight tonight
and again Wednesday afternoon and evening.

In the hours before

Local storm report, Jun 10, 1:19 AM CDT, 0 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
119 AM CDT Wed Jun 10 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 AM     Tstm Wnd Gst     2 S Madison             44.98N 96.18W
06/10/2026  M78 MPH          Lac qui Parle      MN   AWOS

            AWOS station KDXX Madison AP.

&&

BPH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 12:45 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine45 min
Jun 10, 1:31 AM CDTSpecial Weather StatementMPXChippewa, Kandiyohi, Meeker, Renville44 min
Jun 10, 1:35 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Pope, Renville, Swift40 min
Jun 10, 1:40 AM CDTSevere Thunderstorm Warning Considerable damage threatMPXPope, Stevens50 min
Jun 10, 1:58 AM CDTSevere Thunderstorm Warning Considerable damage threatMPXDouglas, Pope, Stearns, Todd47 min
Jun 10, 2:12 AM CDTSpecial Weather StatementMPXMeeker, Stearns, Wright63 min
Jun 10, 2:31 AM CDTSpecial Weather StatementMPXAnoka, Carver, Dakota, Hennepin, Ramsey, Rice and 1 more59 min
Jun 10, 2:49 AM CDTSevere Thunderstorm WarningMPXMorrison, Todd41 min
Jun 10, 2:59 AM CDTSpecial Weather StatementMPXBenton, Isanti, Mille Lacs, Morrison, Sherburne61 min
Jun 10, 3:19 AM CDTSevere Thunderstorm WarningMPXAnoka, Chisago, Ramsey, Washington41 min
Jun 10, 3:32 AM CDTSpecial Weather StatementMPXKanabec43 min
Jun 10, 4:17 AM CDTSpecial Weather StatementMPXRamsey73 min
Jun 10, 11:40 AM CDTSpecial Weather StatementMPXGoodhue50 min
Jun 10, 11:51 AM CDTSevere Thunderstorm WarningMPXGoodhue54 min
Jun 10, 4:18 PM CDTSevere Thunderstorm WarningMPXPope42 min
Jun 10, 4:47 PM CDTSevere Thunderstorm Warning Considerable damage threatMPXDouglas, Stearns, Todd52 min
Jun 10, 5:20 PM CDTSpecial Weather StatementMPXAnoka55 min
Jun 10, 5:26 PM CDTSpecial Weather StatementMPXRamsey34 min
Jun 10, 5:30 PM CDTSevere Thunderstorm WarningMPXMorrison33 min
Jun 10, 5:43 PM CDTSevere Thunderstorm WarningMPXChisago32 min
Jun 10, 6:11 PM CDTSpecial Weather StatementMPXWashington64 min
Jun 10, 6:32 PM CDTSpecial Weather StatementMPXMille Lacs43 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2026Every severe thunderstorm warning in 2026

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.