Southern Minnesota Live Weather

08/12/2026

The new website is now online for both weather stations. We are still working a few bugs. Thank you for your patience.
Madelia: www.somnwx.com
Thompson Farms: www.somnwx.com/thompsonfarms

08/02/2026

Good morning all,

The Madelia and Thompson farms weather stations will be offline periodically while we preform some equipment upgrades. You will notice the website layout will look much different and simplified. The current website is outdated and is getting a much needed refresh. Thank you for your understanding.

06/30/2026

Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
246 AM CDT Tue Jun 30 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for... Blue Earth County in south central Minnesota... Brown County in south central Minnesota... Western Faribault County in south central Minnesota... Martin County in south central Minnesota... Watonwan County in south central Minnesota...

* Until 345 AM CDT.

* At 246 AM CDT, severe thunderstorms were located along a line from 19 miles south of Lamberton to 19 miles southwest of Ceylon, or along a line from 41 miles south of Redwood Falls to 30 miles southwest of Fairmont, moving northeast at 50 to 60 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... Sherburn, Trimont, Welcome, Butterfield, Comfrey, Springfield, Fairmont, St. James, Truman, Sleepy Eye, Madelia, Hanska, Elmore, Winnebago, Blue Earth, Amboy, Lake Crystal, New Ulm, Good Thunder and Mapleton.

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.

&&

TIME...MOT...LOC 0745Z 243DEG 58KT 4396 9532 4370 9508 4331 9488

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

$$

06/17/2026

Mesoscale Discussion 1164
NWS Storm Prediction Center Norman OK
1237 PM CDT Wed Jun 17 2026

Areas affected...portions of the upper Mississippi River Valley

Concerning...Severe potential...Watch possible

Valid 171737Z - 171900Z

Probability of Watch Issuance...60 percent

SUMMARY...A few severe thunderstorms will develop from portions of southeastern Minnesota into northeastern Iowa and southwestern Wisconsin this afternoon, with a threat for primarily large hail and strong/damaging wind gusts.

DISCUSSION...Regional radar imagery depicts increasing thunderstorm activity in close proximity to a surface low analyzed west of Minneapolis, MN, and immediately downstream of a potent mid-level shortwave trough. Cold mid-level temperatures and ascent preceding this feature are coupling with modest surface heating to support weak destabilization (500 J/kg MLCAPE), with 500-1000 J/kg expected by peak heating this afternoon. Very strong westerly mid-level flow (70+ kts sampled at 4 km AGL by the DMX/ARX VAD profiles) is contributing 40-50+ kts of effective shear, supportive of supercell development. While mid-level lapse rates are forecast to remain modest (6-6.5 C/km), this strong shear and elongated, relatively straight hodographs will promote large hail as the primary severe risk, with a localized instance or two of hail to 2" in diameter possible pending the development of a sustained supercell. Strong/damaging wind gusts are also possible owing to downward momentum transport of strengthening low-level flow within downdrafts. A brief tornado also cannot be ruled out owing to the overlap between increasing low-level buoyancy and enhanced surface vertical vorticity in close proximity to the aforementioned surface low. A Severe Thunderstorm Watch may be needed in the next 1-2 hours to cover these threats.
.Chalmers/Hart.. 06/17/2026
..Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...ARX...MPX...DMX...

MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN

05/24/2026

919
WUUS53 KMPX 242353
SVRMPX
MNC013-015-103-250045-
/O.NEW.KMPX.SV.W.0064.260524T2353Z-260525T0045Z/

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

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
Northwestern Blue Earth County in south central Minnesota...
Southeastern Brown County in south central Minnesota...
Central Nicollet County in south central Minnesota...

* Until 745 PM CDT.

* At 653 PM CDT, a severe thunderstorm was located over New Ulm,
moving southeast at 30 mph.

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

SOURCE...Trained spotters reported.

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

* Locations impacted include...
New Ulm Airport, New Ulm, Flandrau State Park, Searles, Courtland,
Judson and Minneopa State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4438 9462 4440 9450 4431 9436 4427 9423
4426 9417 4420 9412 4411 9437 4411 9445
TIME...MOT...LOC 2353Z 320DEG 25KT 4434 9447

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

$$

BED

04/13/2026

Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
604 PM CDT Mon Apr 13 2026

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for... Northwestern Blue Earth County in south central Minnesota... Southeastern Brown County in south central Minnesota... Central Nicollet County in south central Minnesota...

* Until 700 PM CDT.

* At 604 PM CDT, a severe thunderstorm was located 10 miles south of Sleepy Eye, or 16 miles southwest of New Ulm, moving northeast 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... Hanska, New Ulm Airport, Searles, Flandrau State Park, New Ulm and Courtland.

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.

A Tornado Watch remains in effect until 1000 PM CDT Monday for a portion of south central Minnesota.

&&

TIME...MOT...LOC 2303Z 245DEG 19KT 4414 9471

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

$$

CTG

04/12/2026

BIG-TIME THREAT TOMORROW along the warm front southern Minnesota into Wisconsin!

The Dominator 3 is blasting to the Upper Midwest for a outbreak threat tomorrow late afternoon and evening.

Supercells should erupt by 4 pm and quickly develop tornado potential.

Stay tuned in this target area

03/14/2026

02/28/2026

Mesoscale Discussion 0122
NWS Storm Prediction Center Norman OK
0535 AM CST Sat Feb 28 2026

Areas affected...Northeast South Dakota into parts of southwest Minnesota

Concerning...Heavy snow

Valid 281135Z - 281400Z

SUMMARY...A band of moderate to heavy snow is moving slowly eastward across northeast South Dakota and into southwest Minnesota.

DISCUSSION...A narrow band of around 1 inch+ per hour snowfall rates is moving slowly eastward across northeast South Dakota and into southwest Minnesota. Observations are somewhat limited within this narrow band, but where the heaviest snow has been observed, less than 1/4 mile visibility was observed in Redfield, SD. This band is associated with strong frontogenesis centered between 850 and 700mb. This band will drift slowly eastward through the morning and will be mostly across southern Minnesota by mid-day. Frontogenesis strength should maintain through the afternoon. However, drier air across Minnesota may lessen rates somewhat as this band shifts east.
.Bentley.. 02/28/2026
..Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...MPX...FSD...ABR...