Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 49, NWS Twin Cities, MN

May 15, 2026Blue Earth County, Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 15, 2026, 6:28 PM CDT for Blue Earth County, Faribault County, Minnesota. It was in force for 47 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, 2026, 6:28 PM CDT (23:28 UTC)
Expired: May 15, 2026, 7:15 PM CDT
In force: 47 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

The radar

The Minneapolis radar (KMPX), 125 km from the middle of the area, began a volume at 23:28 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

Time	Report	Where	Remark
May 15, 6:42 PM CDT	HAIL 0.5	2 W Delavan, MN

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.

Issued	Product	Office	Lasted
May 15, 5:16 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.5 hours before the alert went out and 124 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2176 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 233 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

485 
WUUS53 KMPX 152328
SVRMPX
MNC013-043-160015-
/O.NEW.KMPX.SV.W.0049.260515T2328Z-260516T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
628 PM CDT Fri May 15 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Blue Earth County in south central Minnesota...
  Northern Faribault County in south central Minnesota...

* Until 715 PM CDT.

* At 628 PM CDT, a severe thunderstorm was located 6 miles south of
  Winnebago, or 15 miles east of Fairmont, moving northeast at 45
  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...
  Guckeen, Huntley, Blue Earth, Winnebago, Delavan, Easton, Mapleton
  and Minnesota Lake.

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 4359 9423 4363 9425 4373 9425 4396 9396
      4387 9377 4385 9377 4385 9372 4383 9368
TIME...MOT...LOC 2328Z 232DEG 39KT 4368 9418

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

$$

Dye

3 follow-up statements

732 
WWUS53 KMPX 152339
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
639 PM CDT Fri May 15 2026

MNC013-043-160015-
/O.CON.KMPX.SV.W.0049.000000T0000Z-260516T0015Z/
Blue Earth MN-Faribault MN-
639 PM CDT Fri May 15 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN BLUE EARTH AND NORTHERN FARIBAULT COUNTIES...

At 639 PM CDT, a severe thunderstorm was located near Delavan, or 21
miles east of Fairmont, moving northeast at 30 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, Delavan, Easton, Minnesota Lake and Mapleton.

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 4385 9410 4396 9396 4387 9377 4385 9377
      4385 9372 4383 9368 4367 9408 4377 9420
TIME...MOT...LOC 2328Z 218DEG 26KT 4368 9415

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

$$

Dye

499 
WWUS53 KMPX 152346
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
646 PM CDT Fri May 15 2026

MNC013-043-160015-
/O.CON.KMPX.SV.W.0049.000000T0000Z-260516T0015Z/
Blue Earth MN-Faribault MN-
646 PM CDT Fri May 15 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
SOUTHEASTERN BLUE EARTH AND NORTHEASTERN FARIBAULT COUNTIES...

At 646 PM CDT, a severe thunderstorm was located over Delavan, or 24
miles northeast of Fairmont, moving northeast at 30 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...
  Delavan, Easton, Minnesota Lake and Mapleton.

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 4385 9410 4396 9396 4387 9377 4385 9377
      4385 9372 4383 9368 4372 9399 4382 9414
TIME...MOT...LOC 2339Z 218DEG 26KT 4374 9408

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

$$

Dye

143 
WWUS53 KMPX 160005
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
705 PM CDT Fri May 15 2026

MNC013-043-160015-
/O.EXP.KMPX.SV.W.0049.000000T0000Z-260516T0015Z/
Blue Earth MN-Faribault MN-
705 PM CDT Fri May 15 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 715 PM CDT FOR
SOUTHEASTERN BLUE EARTH AND NORTHEASTERN FARIBAULT COUNTIES...

The Severe Thunderstorm Warning that was previously in effect has
been reissued for Blue Earth County and is in effect until 745 PM
CDT. Please refer to that bulletin for the latest severe weather
information.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT
Saturday for a portion of south central Minnesota.

&&

LAT...LON 4385 9410 4396 9396 4387 9377 4385 9377
      4385 9372 4383 9368 4372 9399 4382 9414
TIME...MOT...LOC 2346Z 218DEG 26KT 4378 9403

$$

Dye

Nearby

Severe Thunderstorm Warnings in Minnesota, 2026 Every 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.