Alert archive / Minnesota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 21, NWS Twin Cities, MN

May 15, 2025Redwood County, Renville County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 15, 2025, 5:34 AM CDT for Redwood County, Renville County, Minnesota. It was in force for 26 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: May 15, 2025, 5:34 AM CDT (10:34 UTC)
Expired: May 15, 2025, 6:00 AM CDT
In force: 26 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Redwood County, MN, Renville County, MN

The radar

The Minneapolis radar (KMPX), 135 km from the middle of the area, began a volume at 10:35 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.6 hours before the alert went out and 132 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: 561 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 1873 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: 43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

232 
WUUS53 KMPX 151034
SVRMPX
MNC127-129-151100-
/O.NEW.KMPX.SV.W.0021.250515T1034Z-250515T1100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
534 AM CDT Thu May 15 2025

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Western Renville County in central Minnesota...
  Northeastern Redwood County in southwestern Minnesota...

* Until 600 AM CDT.

* At 534 AM CDT, a severe thunderstorm was located over Redwood 
  Falls, moving northwest at 55 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...
  Redwood Falls, Olivia, Renville, Morgan, Sacred Heart, Franklin, 
  Morton, Danube, Delhi, Bechyn, North Redwood, Redwood Falls 
  Airport and Upper Sioux Agency 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 large 
hail.

&&

LAT...LON 4473 9542 4479 9548 4481 9548 4482 9494
      4449 9487 4438 9487 4440 9507 4468 9536
      4470 9536 4471 9540 4472 9540
TIME...MOT...LOC 1034Z 151DEG 48KT 4458 9511

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

$$

Strus

2 follow-up statements

369 
WWUS53 KMPX 151049
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
549 AM CDT Thu May 15 2025

MNC127-129-151100-
/O.CON.KMPX.SV.W.0021.000000T0000Z-250515T1100Z/
Redwood MN-Renville MN-
549 AM CDT Thu May 15 2025

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 6 AM CDT FOR 
WESTERN RENVILLE AND NORTHEASTERN REDWOOD COUNTIES...

At 549 AM CDT, a severe thunderstorm was located over Morton, or 7 
miles east of Redwood Falls, moving north at 35 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...
  Redwood Falls, Olivia, Renville, Sacred Heart, Franklin, Morton, 
  Danube, Delhi, Bechyn, North Redwood, Redwood Falls Airport and 
  Upper Sioux Agency 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 large 
hail.

&&

LAT...LON 4479 9548 4481 9548 4482 9494 4449 9487
      4450 9506 4468 9536 4470 9536 4471 9540
      4472 9540 4473 9542
TIME...MOT...LOC 1034Z 167DEG 30KT 4445 9494

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

$$

Strus

486 
WWUS53 KMPX 151056
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
556 AM CDT Thu May 15 2025

MNC127-129-151106-
/O.EXP.KMPX.SV.W.0021.000000T0000Z-250515T1100Z/
Redwood MN-Renville MN-
556 AM CDT Thu May 15 2025

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 6 AM CDT FOR WESTERN 
RENVILLE AND NORTHEASTERN REDWOOD COUNTIES...

The storm which prompted the warning has weakened below severe 
limits, and no longer poses an immediate threat to life or property. 
Therefore, the warning will be allowed to expire. However, small 
hail and gusty winds are still possible with this thunderstorm.

&&

LAT...LON 4479 9548 4481 9548 4482 9494 4449 9487
      4450 9506 4468 9536 4470 9536 4471 9540
      4472 9540 4473 9542
TIME...MOT...LOC 1049Z 167DEG 30KT 4458 9497

$$

Strus

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 10:17 PM CDT	Wind Advisory	MPX	Blue Earth, Brown, Chippewa, Faribault, Freeborn, Lac qui Parle and 10 more	45 hr
May 15, 3:52 AM CDT	Special Weather Statement	MPX	Lac qui Parle, Yellow Medicine	23 min
May 15, 4:14 AM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle, Yellow Medicine	31 min
May 15, 4:27 AM CDT	Special Weather Statement	MPX	Chippewa, Swift, Yellow Medicine	33 min
May 15, 5:00 AM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Redwood	45 min
May 15, 5:29 AM CDT	Special Weather Statement	MPX	Renville	31 min
May 15, 6:06 AM CDT	Special Weather Statement	MPX	Renville	24 min
May 15, 9:23 AM CDT	Special Weather Statement	MPX	Isanti	37 min
May 15, 9:36 AM CDT	Severe Thunderstorm Warning	MPX	Isanti, Mille Lacs, Sherburne	24 min
May 15, 9:58 AM CDT	Special Weather Statement	MPX	Isanti	17 min
May 15, 10:24 AM CDT	Special Weather Statement	MPX	Kanabec	21 min
May 15, 12:56 PM CDT	Severe Thunderstorm Warning	MPX	Le Sueur	19 min
May 15, 1:17 PM CDT	Tornado Warning	MPX	Swift	28 min
May 15, 1:27 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Le Sueur, Rice, Scott, Steele	33 min
May 15, 1:33 PM CDT	Severe Thunderstorm Warning	MPX	Meeker, Wright	27 min
May 15, 1:36 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Wright	24 min
May 15, 1:37 PM CDT	Tornado Warning	MPX	Pope, Stevens, Swift	38 min
May 15, 1:48 PM CDT	Tornado Warning	MPX	Scott	10 min
May 15, 1:55 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Hennepin, Ramsey, Rice, Scott and 1 more	35 min
May 15, 2:25 PM CDT	Tornado Warning	MPX	Anoka, Hennepin, Ramsey	20 min
May 15, 2:31 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Ramsey, Washington	44 min
May 15, 2:36 PM CDT	Special Weather Statement	MPX	Douglas, Todd	24 min
May 15, 2:41 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago, Hennepin, Isanti, Kanabec, Mille Lacs and 3 more	49 min
May 15, 2:52 PM CDT	Tornado Warning Tornado observed	MPX	Stearns, Todd	23 min
May 15, 3:06 PM CDT	Tornado Warning	MPX	Mille Lacs	24 min
May 15, 3:13 PM CDT	Special Weather Statement	MPX	Todd	32 min
May 15, 3:26 PM CDT	Special Weather Statement	MPX	Kanabec	19 min
May 15, 3:34 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec, Mille Lacs	24 min
May 15, 3:37 PM CDT	Tornado Warning	MPX	Benton, Morrison, Stearns	23 min
May 15, 3:56 PM CDT	Special Weather Statement	MPX	Benton, Morrison	34 min
May 15, 4:22 PM CDT	Special Weather Statement	MPX	Mille Lacs	38 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2025 Every severe thunderstorm warning in 2025

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.