Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 43, NWS La Crosse, WI

June 20, 2021Dodge County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 20, 2021, 3:15 PM CDT for Dodge County, Minnesota. It was in force for 30 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 20, 2021, 3:15 PM CDT (20:15 UTC)
Expired: Jun 20, 2021, 3:45 PM CDT
In force: 30 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

County Dodge County, MN

The radar

The Minneapolis radar (KMPX), 99 km from the middle of the area, began a volume at 20:17 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 20, 1:42 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.3 hours before the alert went out and 100 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: 1666 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

592 
WUUS53 KARX 202015
SVRARX
MNC039-202045-
/O.NEW.KARX.SV.W.0043.210620T2015Z-210620T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
315 PM CDT Sun Jun 20 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Dodge County in southeastern Minnesota...

* Until 345 PM CDT.

* At 314 PM CDT, a severe thunderstorm was located near West Concord,
  or near Dodge Center, moving east at 45 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Mantorville and Kasson around 325 PM CDT.

Other locations impacted by this severe thunderstorm include County
Roads 20 And 5, Concord, Eden, Highway 57 And 570th Street, County
Roads 5 And 6, Wasioja and Highway 56 And County 6.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4420 9304 4420 9269 4419 9268 4395 9268
      4395 9305
TIME...MOT...LOC 2014Z 272DEG 37KT 4410 9291 

TORNADO...POSSIBLE
HAIL...0.88IN
WIND...60MPH
 
$$

Wetenkamp

2 follow-up statements

486 
WWUS53 KARX 202024
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
324 PM CDT Sun Jun 20 2021

MNC039-202045-
/O.CON.KARX.SV.W.0043.000000T0000Z-210620T2045Z/
Dodge MN-
324 PM CDT Sun Jun 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM CDT
FOR DODGE COUNTY...

At 324 PM CDT, a severe thunderstorm was located near Mantorville,
moving east at 40 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe thunderstorm will remain over mainly rural areas of Dodge
County, including the following locations... County Roads 20 And 5,
Concord, Eden, Highway 57 And 570th Street, County Roads 5 And 6,
Wasioja and Highway 56 And County 6.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4420 9304 4420 9269 4419 9268 4395 9268
      4395 9305
TIME...MOT...LOC 2024Z 271DEG 33KT 4410 9280 

HAIL...0.75IN
WIND...60MPH
 
$$

Wetenkamp

060 
WWUS53 KARX 202043
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
343 PM CDT Sun Jun 20 2021

MNC039-202052-
/O.EXP.KARX.SV.W.0043.000000T0000Z-210620T2045Z/
Dodge MN-
343 PM CDT Sun Jun 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR DODGE COUNTY WILL EXPIRE AT
345 PM 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.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern Minnesota.

LAT...LON 4420 9304 4420 9269 4419 9268 4395 9268
      4395 9305
TIME...MOT...LOC 2042Z 272DEG 37KT 4409 9255 

$$

Wetenkamp

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 2:34 PM CDT	Special Weather Statement	ARX	Dodge, Mower	26 min
Jun 20, 3:40 PM CDT	Special Weather Statement	ARX	Mower	35 min
Jun 20, 4:07 PM CDT	Special Weather Statement	ARX	Olmsted, Winona	23 min
Jun 20, 4:38 PM CDT	Severe Thunderstorm Warning	ARX	Olmsted, Winona	26 min
Jun 20, 6:28 PM CDT	Special Weather Statement	ARX	Wabasha	32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every severe thunderstorm warning in 2021

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.