Alert archive / Minnesota / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 7, NWS Twin Cities, MN

May 20, 2024McLeod County, Renville County, Sibley County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at May 20, 2024, 11:50 PM CDT for McLeod County, Renville County, Sibley County, Minnesota. It was in force for 25 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 20, 2024, 11:50 PM CDT (04:50 UTC)
Expired: May 21, 2024, 12:15 AM CDT
In force: 25 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties McLeod County, MN, Renville County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 84 km from the middle of the area, began a volume at 04:53 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, 4.8 hours before the alert went out and 82 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: 1078 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 1148 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.4

Open this sounding in Storm Lab

The text

As transmitted.

901 
WUUS53 KMPX 210450
SVRMPX
MNC085-129-143-210515-
/O.NEW.KMPX.SV.W.0007.240521T0450Z-240521T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1150 PM CDT Mon May 20 2024

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Sibley County in central Minnesota...
  West central McLeod County in central Minnesota...
  East central Renville County in central Minnesota...

* Until 1215 AM CDT.

* At 1150 PM CDT, a severe thunderstorm was located 6 miles south of
  Buffalo Lake, or 21 miles southwest of Hutchinson, 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...
  Brownton, Buffalo Lake, and Stewart.

This includes U.S. Highway 212 between mile markers 92 and 107.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4458 9463 4463 9477 4483 9463 4474 9435
TIME...MOT...LOC 0450Z 228DEG 27KT 4464 9466 

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

$$

CTG

2 follow-up statements

460 
WWUS53 KMPX 210504
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1204 AM CDT Tue May 21 2024

MNC085-129-143-210515-
/O.CON.KMPX.SV.W.0007.000000T0000Z-240521T0515Z/
Sibley MN-McLeod MN-Renville MN-
1204 AM CDT Tue May 21 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR NORTHWESTERN SIBLEY...WEST CENTRAL MCLEOD AND EAST CENTRAL
RENVILLE COUNTIES...

At 1204 AM CDT, a severe thunderstorm was located near Stewart, or 14
miles southwest of Hutchinson, 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...
Brownton, Buffalo Lake, and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4464 9456 4470 9465 4481 9458 4474 9435
TIME...MOT...LOC 0504Z 228DEG 27KT 4471 9455 

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

$$

CTG

217 
WWUS53 KMPX 210505
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1205 AM CDT Tue May 21 2024

MNC085-129-143-210515-
/O.EXP.KMPX.SV.W.0007.000000T0000Z-240521T0515Z/
Sibley MN-McLeod MN-Renville MN-
1205 AM CDT Tue May 21 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SIBLEY...WEST
CENTRAL MCLEOD AND EAST CENTRAL RENVILLE COUNTIES WILL EXPIRE AT 1215
AM CDT...

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.

&&

LAT...LON 4464 9456 4470 9465 4481 9458 4474 9435
TIME...MOT...LOC 0505Z 228DEG 27KT 4471 9455 

$$

CTG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 8:01 PM CDT	Special Weather Statement	MPX	Goodhue	29 min
May 20, 8:30 PM CDT	Special Weather Statement	MPX	Goodhue	30 min
May 20, 9:08 PM CDT	River Flood Warning	MPX	Redwood, Renville	25 hr
May 20, 9:37 PM CDT	Special Weather Statement	MPX	Freeborn	23 min
May 20, 10:45 PM CDT	Special Weather Statement	MPX	Sibley	45 min
May 20, 11:08 PM CDT	Severe Thunderstorm Warning	MPX	Martin	37 min
May 20, 11:24 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood, Renville, Sibley	36 min
May 20, 11:27 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Martin	33 min
May 21, 12:18 AM CDT	Severe Thunderstorm Warning	MPX	Rice	27 min
May 21, 12:34 AM CDT	Special Weather Statement	MPX	McLeod	26 min
May 21, 1:27 AM CDT	Special Weather Statement	MPX	Chisago	33 min
May 21, 1:54 AM CDT	Severe Thunderstorm Warning	MPX	Chisago	36 min
May 21, 3:59 PM CDT	Tornado Warning	MPX	Blue Earth, Faribault, Martin	46 min
May 21, 4:17 PM CDT	Severe Thunderstorm Warning	MPX	Faribault, Freeborn, Steele, Waseca	43 min
May 21, 4:26 PM CDT	Tornado Warning	MPX	Blue Earth	34 min
May 21, 4:31 PM CDT	Tornado Warning	MPX	Le Sueur, Waseca	33 min
May 21, 4:41 PM CDT	Flash Flood Warning	MPX	Blue Earth, Martin, Nicollet, Watonwan	3 hr
May 21, 4:46 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	44 min
May 21, 4:50 PM CDT	Tornado Warning	MPX	Goodhue, Rice, Steele	40 min
May 21, 4:53 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn, Steele	46 min
May 21, 5:20 PM CDT	Tornado Warning	MPX	Dakota, Goodhue	22 min
May 21, 5:21 PM CDT	Special Weather Statement	MPX	Hennepin, Ramsey, Washington	54 min
May 21, 6:34 PM CDT	Special Weather Statement	MPX	Ramsey	56 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2024 Every severe thunderstorm warning in 2024

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.