Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 134, NWS Twin Cities, MN

June 30, 20264 counties in Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 30, 2026, 4:57 AM CDT for 4 counties in Minnesota. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 30, 2026, 4:57 AM CDT (09:57 UTC)
Expired
Jun 30, 2026, 5:45 AM CDT
In force
48 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Waseca County, MN

The radar

The Minneapolis radar (KMPX), 113 km from the middle of the area, began a volume at 09:56 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 30, 2:59 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.0 hours before the alert went out and 112 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 2026-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4778 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 00:00Z on 2026-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 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
4778 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
376 m²/s²
Significant tornado parameter
6.8
Supercell composite
41.5

Open this sounding in Storm Lab

The text

As transmitted.

650 
WUUS53 KMPX 300957
SVRMPX
MNC013-043-047-161-301045-
/O.NEW.KMPX.SV.W.0134.260630T0957Z-260630T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
457 AM CDT Tue Jun 30 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Blue Earth County in south central Minnesota...
  Faribault County in south central Minnesota...
  Western Freeborn County in south central Minnesota...
  Waseca County in south central Minnesota...

* Until 545 AM CDT.

* At 457 AM CDT, severe thunderstorms were located along a line from
  over Amboy to near Bricelyn, or along a line from 22 miles
  northeast of Fairmont to 26 miles west of Albert Lea, moving
  northeast at 50 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...
  Winnebago, Frost, Amboy, Bricelyn, Easton, Minnesota Lake,
  Mapleton, Wells, Mansfield, Emmons, Alden, Waldorf, Freeborn,
  Pemberton, St. Clair, Hartland, New Richland, Janesville, Waseca
  and Elysian.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

&&

LAT...LON 4385 9427 4420 9377 4420 9351 4419 9341
      4385 9341 4350 9347 4350 9402 4366 9408
      4381 9425 4385 9425
TIME...MOT...LOC 0957Z 237DEG 42KT 4387 9418 4372 9395 4353 9387

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

$$

ETA
2 follow-up statements
529 
WWUS53 KMPX 301027
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
527 AM CDT Tue Jun 30 2026

MNC013-043-301037-
/O.CAN.KMPX.SV.W.0134.000000T0000Z-260630T1045Z/
Blue Earth MN-Faribault MN-
527 AM CDT Tue Jun 30 2026

...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHEASTERN BLUE
EARTH AND FARIBAULT COUNTIES...

The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT
Tuesday for a portion of south central Minnesota.

&&

LAT...LON 4385 9366 4395 9377 4398 9377 4412 9341
      4385 9341 4355 9347 4359 9365 4385 9365
TIME...MOT...LOC 0957Z 238DEG 42KT 4387 9417 4372 9394 4353 9387

$$


MNC047-161-301045-
/O.CON.KMPX.SV.W.0134.000000T0000Z-260630T1045Z/
Freeborn MN-Waseca MN-
527 AM CDT Tue Jun 30 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT FOR
WESTERN FREEBORN AND SOUTHERN WASECA COUNTIES...

At 527 AM CDT, severe thunderstorms were located along a line from
near Pemberton to 6 miles south of Hartland, or along a line from 13
miles southeast of Mankato to 6 miles northwest of Albert Lea, moving
northeast at 50 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...
  Alden, Matawan, Conger, Waldorf, Freeborn, Hartland, Manchester,
  Otisco, New Richland and Waseca.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds and
large hail.

&&

LAT...LON 4385 9366 4395 9377 4398 9377 4412 9341
      4385 9341 4355 9347 4359 9365 4385 9365
TIME...MOT...LOC 0957Z 238DEG 42KT 4387 9417 4372 9394 4353 9387

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

$$

ETA
098 
WWUS53 KMPX 301054
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
554 AM CDT Tue Jun 30 2026

MNC047-161-301104-
/O.EXP.KMPX.SV.W.0134.000000T0000Z-260630T1045Z/
Freeborn MN-Waseca MN-
554 AM CDT Tue Jun 30 2026

...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR WESTERN FREEBORN AND
SOUTHERN WASECA COUNTIES...

The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT
Tuesday for a portion of south central Minnesota.

&&

LAT...LON 4385 9366 4395 9377 4398 9377 4412 9341
      4385 9341 4355 9347 4359 9365 4385 9365
TIME...MOT...LOC 1027Z 238DEG 42KT 4406 9376 4391 9353 4372 9346

$$

ETA

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 30, 3:03 AM CDT, 1 hour 54 minutes earlier. Its key messages:

  • Thunderstorms capable;le of damaging wind gusts are expected this morning, especially across southern Minnesota.
  • Hot & humid again today with the highest heat index values of 95-100 F across eastern Minnesota & western Wisconsin.
  • Thunderstorms likely tomorrow morning.
Area forecast discussion, Jun 30, 3:03 AM CDT, 1 hour 54 minutes before
Area Forecast Discussion
National Weather Service Twin Cities/Chanhassen MN
303 AM CDT Tue Jun 30 2026

.KEY MESSAGES...

- Thunderstorms capable;le of damaging wind gusts are expected
  this morning, especially across southern Minnesota.

- Hot & humid again today with the highest heat index values of
  95-100 F across eastern Minnesota & western Wisconsin.

- Thunderstorms likely tomorrow morning.

&&

.DISCUSSION...
Issued at 228 AM CDT Tue Jun 30 2026

Main weather concern this morning will be a thunderstorm
complex producing damaging wind gusts over 50-60 mph moving
northeastwards out nor northwest Iowa. A primed environment for
severe weather lies ahead of this thunderstorm complex so it
show no signs of slowing down as it moves through southern
Minnesota & into the Twin Cities metro & western Wisconsin early
this morning. The greatest chance for damaging wind gusts over
50-60 mph will be across southern Minnesota, while it remains
uncertain just how far north & east that threat may continue.
Regardless, gusty winds of at least 30-40 mph are likely with
any of the thunderstorms this morning in additional to brief
heavy downpours The thunderstorm complex is moving
northeastwards at over 50 mph, meaning it'll reach the I-90
corridor through 3-4 AM, the Twin Cities & I-35 by 5-6 AM, &
into western WI through 6-8 AM.

The morning thunderstorms will be decaying & out of our area by
8-9 AM, & then the question will be how quickly we clear out
through the morning & into the afternoon. High-resolutiion
models that are handling the ongoing thunderstorm complex still
warm temperatures into the low 90s across eastern Minnesota &
western Wisconsin meaning our Heat Advisory continues to look on
track. Another trend to watch will be how much convection is
able to bubble up in western Wisconsin this afternoon. Notable
is that the high-resolutiin models that handle the morning
convection are less-robust with any thunderstorms this
afternoon, meaning the severe potential may be setting up
farther to our east over central & eastern Wisconsin.

Another chance for thunderstorms, including the potential for a
severe thunderstorm complex, look likely Wednesday morning.
These thunderstorms look to be more widespread & persist longer
through the morning, meaning temperatures do look to be cooler
during the afternoon in the low to mid 80s. It'l still be muggy,
but a welcome break from the excessive heat. Looking ahead -
it'll be more of the same through the holiday weekend with
muggy conditions & multiple chances for thunderstorms,
including a severe thunderstorm & heavy rain threat.
Temperatures do continue to look cooler than we were thinking a
few days ago, with highs generally in the 80s as opposed to
90s. The threat for an extended heat wave continues to trend
lower, but continue to take necessary cooling actions as needed.

&&

.AVIATION /06Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 1224 AM CDT Tue Jun 30 2026

Convection from earlier this evening has dissipated with VFR
conditions at most terminals. SCT -TSRA is seen on radar for
EAU with instances of MVFR conditions through 07z. Skies remain
BKN to OVC at 5-10 kft with MVFR (BKN at 2-4 kft) for STC. Winds
generally S to SSW at 8-13 knots with gusts to 20-25 knots over
the next few hours, becoming 5-10 knots by 10z.

High resolution models continue to show a line of TSRA, or MCS-
like feature moving NE out of Nebraska and Iowa before moving
into Minnesota later this morning. PROB30s remain in TAFs for
all terminals except AXN and STC. If this line of TSRA maintains
and moves across the area flight categories may drop to IFR to
MVFR. Something we will be monitoring over the next several
hours and TAFs will be AMENDED if needed. High res models show
this activity departing the area by 12-13z with BKN-OVC skies in
it's wake. Skies will quickly clear by early afternoon with FEW
at 5-10 kft and FEW to SCT at 20-25 kft this afternoon. Winds
will be SW at 10-15 knots with gusts to 20-25 knots this
afternoon.

KMSP...VFR conditions expected over the next several hours with
BKN to OVC skies. Winds remain breezy out of the S/SSW at 10-15
knots with gusts to 20-25 knots. Winds will slowly decrease
through the overnight and early morning timeframe. High res
model guidance continue to show a line of TSRA or MCS-like
feature moving NE out of Nebraska and Iowa before entering
Minnesota later this morning. PROB30s for TSRA remain in the
TAF. If said line of TSRA moves into the metro vicinity, flight
categories may become IFR to MVFR by 10z. This is something we
will continue monitoring in the coming hours and TAF will be
AMENDED if needed. High res models show this activity departing
the metro area by 12z with BKN to OVC skies in it's wake. Skies
will quickly clear by afternoon with FEW at 5-10 kft and FEW-SCT
at 20-25 kft during the afternoon. Winds in the afternoon will
be SW at 10-15 knots sustained with gusts to 20-25 knots.

/OUTLOOK FOR KMSP/
WED...VFR. Chc -TSRA. Wind SW 8-13G20 kts.
THU...VFR. Chc PM -TSRA. S 5-10 kts.
FRI...VFR. Chc PM -TSRA. S 5-10 kts.

&&

.MPX WATCHES/WARNINGS/ADVISORIES...
MN...Heat Advisory until 9 PM CDT this evening for Anoka-Blue Earth-
     Brown-Carver-Chisago-Dakota-Faribault-Freeborn-Goodhue-
     Hennepin-Le Sueur-Martin-McLeod-Nicollet-Ramsey-Rice-
     Scott-Sibley-Steele-Waseca-Washington-Watonwan-Wright.
WI...Heat Advisory until 9 PM CDT this evening for Barron-Chippewa-
     Dunn-Eau Claire-Pepin-Pierce-Polk-Rusk-St. Croix.

&&

DISCUSSION...ETA
AVIATION...LPR
Hazardous weather outlook, Jun 30, 2:27 AM CDT, 2 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
227 AM CDT Tue Jun 30 2026

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
010730-
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-
227 AM CDT Tue Jun 30 2026

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

.DAY ONE...Today and Tonight.

A line of thunderstorm will move across Minnesota & into western
Wisconsin early this morning. The highest chance for severe wind
gusts of 60+ mph is across southern Minnesota. Wind gusts of 40-60
mph are possible farther north into central Minnesota & western
Wisconsin.

Heat index values of 95-100 degrees are expected across eastern
Minnesota & western Wisconsin this afternoon.

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

Muggy conditions continue through the week, although max heat
index values should remain below 100 degrees.

Thunderstorm chances continue through most of the week. Severe
thunderstorms and locally heavy rainfall are possible.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter reports of wind & wind damage are requested this
morning.

In the hours before

Local storm report, Jun 30, 3:16 AM CDT, 1 hour 41 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
316 AM CDT Tue Jun 30 2026

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

0315 AM     Tstm Wnd Gst     Butterfield             43.96N 94.80W
06/30/2026  M61 MPH          Watonwan           MN   Public

&&
Local storm report, Jun 30, 3:25 AM CDT, 1 hour 32 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
325 AM CDT Tue Jun 30 2026

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

0322 AM     Tstm Wnd Gst     5 WNW Truman            43.86N 94.53W
06/30/2026  M60 MPH          Watonwan           MN   Public

&&
Local storm report, Jun 30, 3:26 AM CDT, 1 hour 31 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
326 AM CDT Tue Jun 30 2026

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

0310 AM     Tstm Wnd Gst     1 NNE Welcome           43.68N 94.62W
06/30/2026  M67 MPH          Martin             MN   Dept of Highways

            MNDot Road observation site recorded a wind
            gust of 67 mph.

&&

LPR
Local storm report, Jun 30, 3:43 AM CDT, 1 hour 14 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
343 AM CDT Tue Jun 30 2026

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

0335 AM     Tstm Wnd Gst     3 E St. James           43.99N 94.56W
06/30/2026  M60 MPH          Watonwan           MN   ASOS

            St. James Municipal Airport ASOS recorded a
            60 mph wind gust.

&&

LPR

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 9:25 PM CDTSpecial Weather StatementMPXDouglas, Pope65 min
Jun 29, 9:58 PM CDTSevere Thunderstorm WarningMPXDouglas, Pope, Todd47 min
Jun 29, 10:25 PM CDTSpecial Weather StatementMPXRedwood50 min
Jun 29, 10:27 PM CDTSevere Thunderstorm Warning Considerable damage threatMPXMorrison, Todd48 min
Jun 29, 10:32 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Redwood, Renville43 min
Jun 29, 10:45 PM CDTTornado WarningMPXMorrison, Todd30 min
Jun 30, 2:46 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Faribault, Martin, Watonwan59 min
Jun 30, 3:44 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Le Sueur, McLeod, Nicollet, Renville and 2 more30 min
Jun 30, 5:31 AM CDTSevere Thunderstorm WarningMPXFreeborn, Steele35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.