Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 63, NWS Twin Cities, MN

May 24, 2026Nicollet County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 24, 2026, 6:37 PM CDT for Nicollet County, Sibley County, Minnesota. It was in force for 53 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 24, 2026, 6:37 PM CDT (23:37 UTC)
Expired
May 24, 2026, 7:30 PM CDT
In force
53 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Nicollet County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 69 km from the middle of the area, began a volume at 23:37 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 24, 6:46 PM CDTTSTM WND GST 601 N Nicollet, MNLots of blowing dust ahead of severe warned thunderstorms. Spotter estimated 50-60 MPH winds.

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 one storm report to this severe thunderstorm warning; the first came 9 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
May 24, 4:53 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.6 hours before the alert went out and 67 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 2026-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2026-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1333 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

302 
WUUS53 KMPX 242337
SVRMPX
MNC103-143-250030-
/O.NEW.KMPX.SV.W.0063.260524T2337Z-260525T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
637 PM CDT Sun May 24 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  South Central Sibley County in central Minnesota...
  Northeastern Nicollet County in south central Minnesota...

* Until 730 PM CDT.

* At 637 PM CDT, a severe thunderstorm was located near Gaylord, or
  16 miles northeast of New Ulm, moving east at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage to
           roofs, siding, and trees.

* Locations impacted include...
  Gaylord, Courtland, New Sweden, New Rome, Nicollet, Norseland, Rush
  River and Oshawa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

&&

LAT...LON 4448 9426 4459 9418 4447 9391 4447 9393
      4446 9392 4445 9393 4441 9394 4441 9395
      4440 9395 4438 9396 4436 9396 4435 9397
      4426 9418 4426 9438 4427 9441 4429 9442
      4429 9443 4430 9443 4430 9444
TIME...MOT...LOC 2336Z 291DEG 18KT 4450 9428

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BED
2 follow-up statements
856 
WWUS53 KMPX 250000
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
700 PM CDT Sun May 24 2026

MNC143-250010-
/O.CAN.KMPX.SV.W.0063.000000T0000Z-260525T0030Z/
Sibley MN-
700 PM CDT Sun May 24 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTH CENTRAL SIBLEY
COUNTY...

The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

&&

LAT...LON 4435 9397 4426 9418 4426 9438 4427 9441
      4429 9442 4429 9443 4430 9443 4430 9444
      4446 9428 4446 9393 4441 9394 4441 9395
TIME...MOT...LOC 2337Z 291DEG 18KT 4450 9427

$$


MNC103-250030-
/O.CON.KMPX.SV.W.0063.000000T0000Z-260525T0030Z/
Nicollet MN-
700 PM CDT Sun May 24 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
NORTHEASTERN NICOLLET COUNTY...

At 700 PM CDT, a severe thunderstorm was located 7 miles northeast of
Nicollet, or 16 miles northwest of Mankato, moving southeast at 25
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to
         roofs, siding, and trees.

Locations impacted include...
  Courtland, Norseland, Nicollet and Oshawa.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

&&

LAT...LON 4435 9397 4426 9418 4426 9438 4427 9441
      4429 9442 4429 9443 4430 9443 4430 9444
      4446 9428 4446 9393 4441 9394 4441 9395
TIME...MOT...LOC 2337Z 315DEG 23KT 4447 9428

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

BED
332 
WWUS53 KMPX 250025
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
725 PM CDT Sun May 24 2026

MNC103-250035-
/O.EXP.KMPX.SV.W.0063.000000T0000Z-260525T0030Z/
Nicollet MN-
725 PM CDT Sun May 24 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 730 PM CDT FOR
NORTHEASTERN NICOLLET COUNTY...

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.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for a
portion of south central Minnesota.

&&

LAT...LON 4435 9397 4426 9418 4426 9438 4427 9441
      4429 9442 4429 9443 4430 9443 4430 9444
      4446 9428 4446 9393 4441 9394 4441 9395
TIME...MOT...LOC 0000Z 315DEG 23KT 4437 9413

$$

BED

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 May 24, 2:01 PM CDT, 4 hours 36 minutes earlier. Its key messages:

  • Scattered thunderstorms develop this evening across southwest to central MN, spreading into southeast MN western WI overnight into Monday AM.
  • Summer-like warm through Thursday. Tuesday is forecast to be the warmest day with highs in the low 90s possible.
Area forecast discussion, May 24, 2:01 PM CDT, 4 hours 36 minutes before
Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
201 PM CDT Sun May 24 2026

.KEY MESSAGES...

- Scattered thunderstorms develop this evening across southwest to
  central MN, spreading into southeast MN western WI overnight into
  Monday AM.

- Summer-like warm through Thursday. Tuesday is forecast to be
  the warmest day with highs in the low 90s possible.

&&

.DISCUSSION...
Issued at 157 PM CDT Sun May 24 2026

A pleasant afternoon is underway across much of the Upper Midwest.
Temperatures have warmed into the 70s and 80s with mostly sunny
skies & relatively light wind. One cannot draw up a much nicer late
May day. Unfortunately, all good things must come to an end and
today's nice weather is not different. There will be scattered
thunderstorms that develop this evening across portions of west and
southwest Minnesota. A few of these storms could become strong to
severe capable of producing large hail and damaging winds. SPC
expanded their level 1 (Marginal) and added a level 2 (Slight) risk
areas across SW/WC MN for this evening's severe threat. Forecast
soundings reveal 1000-1500 J/kg MLCAPE, sufficient wind shear, and
modest forcing that will arrive prior to sunset. Low level lapse
rates will be steep given with an inverted V sounding present. This
will cause some updrafts to strengthen and produce large hail and
possibly gusty winds. Low level moisture is modest - dew points
struggle to get into the upper 50s but better mid-level moisture
will be enough to get over the hump. The most favorable corridor
appears to be along the MN river valley south to the I-90 corridor.
A few storms will hold on to clip E MN and W WI overnight, but
severe potential wanes by midnight.

For Memorial Day, dry conditions are expected behind the lingering
overnight convection. Skies should clear up nicely by mid-late
morning. Temperatures will climb further as southerly winds ramp up.
High temperatures push into the upper 80s with dew points in the
lower 60s. Latest guidance supports a broad area of 2000+ J/kg
MLCAPE overhead by Monday afternoon. If we take a few forecast
soundings across MN and W WI, they all reveal a mostly capped
environment under rising heights. The missing ingredient is any
meaningful forcing aloft - something key to overcoming that low
level capping. If a storm could form, hail would be the primary
concern.

For Tuesday/Wednesday, models show surface dewpoints climbing
into the 60s, with PWATs increasing to around 150% of normal.
Temperatures will warm further, into the upper 80s to lower 90s,
it looks like diurnal destabilization may be enough to break
through capping in the afternoon hours. This should lead to
isolated pulse thunderstorms capable of producing isolated
damaging wind gusts. Forecast soundings support a limited threat
of severe weather. Looking ahead into next weekend, we'll be
under the heart of an omega block. Surface wise, we'll be west
of high pressure over the Great Lakes that drops down from
Hudson Bay. This will result in a prolonged period of cooler,
dry easterly winds. This will help push highs back down to more
normal values, into the 70s, but also dry our the surface low
level moisture. Needless to say, with an airmass this dry moving
in, it will be difficult to see any precipitation. Long range
guidance would hint that a warmer than normal & drier than
normal pattern sets up for the first half of Summer.

&&

.AVIATION /18Z TAFS THROUGH 18Z MONDAY/...
Issued at 114 PM CDT Sun May 24 2026

VFR for all TAF sites to start with clouds very few and quite
far between at initialization time. SKC conditions likely to
persist through the daylight hours, potentially aside from some
high clouds filtering in from W or SW as a warm front moves into
the region. Mid-to-high ceilings are likely from late evening
through much of the overnight hours, along with scattered -SHRA
for mainly far southern MN into western WI during the overnight
hours. A few select hours of TSRA potential is there for most
TAF sites, mainly after midnight but prior to sunrise.
Visibilities may well drop into MVFR range should any decent
rainfall move across any given site but ceilings are expected to
remain within VFR range. Skies will then gradually clear out
from around sunrise onward on Memorial Day. Winds will remain
generally southerly throughout with speeds in the 6-10kt range,
potentially a bit higher and gusty during the day tomorrow.

KMSP...Went a little later in the timing of the overnight TAF
compared to the 12z TAF, now looking for the window of -SHRA to
be in the 05z-10z range, with TSRA roughly 07z-10z. CAMs are
still relatively all over the place with the location/timing of
overnight convection so this timing may shift a bit yet in
upcoming TAF issuances. Otherwise, the idea of VFR ceilings with
possibly MVFR visibility during convection still holds for MSP.

/OUTLOOK FOR KMSP/
TUE...VFR. Wind SSW 5-10kts.
WED...VFR with P.M. MVFR/-TSRA possible. Wind SE 5-10 kts.
THU...VFR. Wind SE 5-10 kts.

&&

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

&&

DISCUSSION...BPH
AVIATION...JPC
Hazardous weather outlook, May 24, 5:21 PM CDT, 1 hour 16 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
521 PM CDT Sun May 24 2026

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
252000-
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-
521 PM CDT Sun May 24 2026

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

.DAY ONE...Tonight.

Scattered thunderstorms are expected this evening and overnight
across southern Minnesota. A few storms may be severe,
particularly over southwest Minnesota through this evening. The
main hazard is large hail, and damaging wind gusts cannot be ruled
out.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Isolated to scattered thunderstorms will be possible Tuesday and
Wednesday afternoon. The threat for severe weather is low.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will likely be needed through this
evening over southern Minnesota.

In the hours before

Special weather statement, May 24, 4:57 PM CDT, 1 hour 40 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
457 PM CDT Sun May 24 2026

MNZ065-242245-
Renville MN-
457 PM CDT Sun May 24 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL RENVILLE COUNTY UNTIL
545 PM CDT...

At 457 PM CDT, Doppler radar was tracking a strong thunderstorm 7
miles southeast of Renville, or 12 miles north of Redwood Falls,
moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Bechyn, Olivia, Morton and Bird Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4465 9523 4478 9521 4478 9487 4452 9492
      4453 9494 4459 9511 4460 9512 4460 9513
      4461 9515 4462 9518
TIME...MOT...LOC 2156Z 278DEG 16KT 4471 9514

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BED
Special weather statement, May 24, 5:12 PM CDT, 1 hour 25 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
512 PM CDT Sun May 24 2026

MNZ067-242245-
Sibley MN-
512 PM CDT Sun May 24 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL SIBLEY COUNTY UNTIL 545
PM CDT...

At 512 PM CDT, Trained spotters reported a strong thunderstorm over
Gaylord, or 22 miles northeast of New Ulm, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Trained spotters reported.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Gaylord, New Rome and Arlington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4452 9427 4463 9425 4466 9394 4447 9397
TIME...MOT...LOC 2212Z 277DEG 18KT 4456 9419

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BED
Special weather statement, May 24, 5:43 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
543 PM CDT Sun May 24 2026

MNZ067-242330-
Sibley MN-
543 PM CDT Sun May 24 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN SIBLEY COUNTY UNTIL
630 PM CDT...

At 543 PM CDT, Trained spotters reported a strong thunderstorm over
Arlington, or 26 miles northeast of New Ulm, moving east at 15 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Trained spotters reported.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Arlington, Henderson and New Rome.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4452 9414 4463 9413 4465 9380 4463 9380
      4462 9384 4462 9386 4461 9386 4459 9390
      4457 9389 4456 9390 4455 9389 4455 9390
      4454 9391 4453 9389 4451 9389 4447 9391
      4447 9393 4446 9392 4446 9396
TIME...MOT...LOC 2243Z 277DEG 13KT 4457 9407

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BED
Special weather statement, May 24, 6:14 PM CDT, 23 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
614 PM CDT Sun May 24 2026

MNZ057-058-250000-
Meeker MN-Kandiyohi MN-
614 PM CDT Sun May 24 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN MEEKER AND
SOUTHEASTERN KANDIYOHI COUNTIES UNTIL 7 PM CDT...

At 614 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southwest of Atwater, or 9 miles southeast of Willmar, moving
east at 15 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will remain over mainly rural areas of
Southwestern Meeker and Southeastern Kandiyohi Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4501 9496 4513 9494 4515 9460 4492 9464
TIME...MOT...LOC 2313Z 278DEG 14KT 4506 9489

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BED
Special weather statement, May 24, 6:28 PM CDT, 9 minutes before
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
628 PM CDT Sun May 24 2026

MNZ065-250015-
Renville MN-
628 PM CDT Sun May 24 2026

...A STRONG THUNDERSTORM WILL IMPACT CENTRAL RENVILLE COUNTY UNTIL
715 PM CDT...

At 628 PM CDT, Doppler radar was tracking a strong thunderstorm over
Olivia, or 15 miles north of Redwood Falls, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
  Bechyn, Olivia, Bird Island and Hector.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4469 9512 4483 9506 4482 9467 4461 9474
TIME...MOT...LOC 2328Z 279DEG 17KT 4475 9500

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BED

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 4:41 PM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville49 min
May 24, 4:57 PM CDTSpecial Weather StatementMPXRenville48 min
May 24, 5:07 PM CDTSevere Thunderstorm WarningMPXRenville38 min
May 24, 5:10 PM CDTSevere Thunderstorm WarningMPXRenville65 min
May 24, 5:12 PM CDTSpecial Weather StatementMPXSibley33 min
May 24, 5:34 PM CDTSevere Thunderstorm WarningMPXMcLeod, Sibley56 min
May 24, 5:43 PM CDTSpecial Weather StatementMPXSibley47 min
May 24, 6:03 PM CDTSevere Thunderstorm WarningMPXSibley57 min
May 24, 6:14 PM CDTSpecial Weather StatementMPXKandiyohi46 min
May 24, 6:18 PM CDTSevere Thunderstorm WarningMPXNicollet57 min
May 24, 6:28 PM CDTSpecial Weather StatementMPXRenville47 min
May 24, 6:53 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Nicollet52 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.