Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Twin Cities, MN

May 25, 2021Barron County, Dunn County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 25, 2021, 2:59 PM CDT for Barron County, Dunn County, Saint Croix County, Wisconsin. It was in force for 31 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 25, 2021, 2:59 PM CDT (19:59 UTC)
Expired: May 25, 2021, 3:30 PM CDT
In force: 31 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Barron County, WI, Dunn County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 141 km from the middle of the area, began a volume at 19:59 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 25, 3:00 PM CDT	TSTM WND DMG	5 Nne Glenwood City, WI	SEVERAL TREES DOWN, INCLUDING ONE ACROSS A ROAD.

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 25, 2:53 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 305 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: 96 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1118 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 155 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

795 
WUUS53 KMPX 251959
SVRMPX
WIC005-033-109-252030-
/O.NEW.KMPX.SV.W.0019.210525T1959Z-210525T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
259 PM CDT Tue May 25 2021

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Northwestern Dunn County in west central Wisconsin...
  East central St. Croix County in west central Wisconsin...
  South central Barron County in northwestern Wisconsin...

* Until 330 PM CDT.

* At 259 PM CDT, a severe thunderstorm was located near Boyceville,
  or 18 miles northwest of Menomonie, moving northeast at 40 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.

* This severe thunderstorm will be near...
  Prairie Farm around 310 PM CDT.
  Ridgeland around 315 PM CDT.

Other locations in the path of this severe thunderstorm include
Dallas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4521 9162 4521 9166 4519 9167 4503 9216
      4513 9225 4538 9187
TIME...MOT...LOC 1959Z 233DEG 37KT 4512 9209 

HAIL...1.00IN
WIND...60MPH
 
$$

Dye

2 follow-up statements

826 
WWUS53 KMPX 252007
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
307 PM CDT Tue May 25 2021

WIC109-252017-
/O.CAN.KMPX.SV.W.0019.000000T0000Z-210525T2030Z/
St. Croix WI-
307 PM CDT Tue May 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ST. CROIX COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
northwestern and west central Wisconsin.

LAT...LON 4521 9162 4521 9166 4519 9167 4507 9203
      4515 9215 4538 9187
TIME...MOT...LOC 2007Z 233DEG 37KT 4517 9199 

$$

WIC005-033-252030-
/O.CON.KMPX.SV.W.0019.000000T0000Z-210525T2030Z/
Dunn WI-Barron WI-
307 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR NORTHWESTERN DUNN AND SOUTH CENTRAL BARRON COUNTIES...

At 307 PM CDT, a severe thunderstorm was located near Prairie Farm,
or 19 miles north of Menomonie, 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.

This severe storm will be near...
  Prairie Farm around 310 PM CDT.
  Ridgeland around 315 PM CDT.

Other locations in the path of this severe thunderstorm include
Dallas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4521 9162 4521 9166 4519 9167 4507 9203
      4515 9215 4538 9187
TIME...MOT...LOC 2007Z 233DEG 37KT 4517 9199 

HAIL...1.00IN
WIND...60MPH
 
$$

Dye

044 
WWUS53 KMPX 252016
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
316 PM CDT Tue May 25 2021

WIC005-033-252030-
/O.CON.KMPX.SV.W.0019.000000T0000Z-210525T2030Z/
Dunn WI-Barron WI-
316 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CDT
FOR NORTH CENTRAL DUNN AND SOUTH CENTRAL BARRON COUNTIES...

At 315 PM CDT, a severe thunderstorm was located over Ridgeland, or
20 miles south of Rice Lake, 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.

This severe storm will be near...
  Dallas around 320 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4521 9162 4521 9166 4519 9167 4511 9190
      4517 9201 4535 9183
TIME...MOT...LOC 2015Z 233DEG 37KT 4522 9189 

HAIL...1.00IN
WIND...60MPH
 
$$

Dye

The office that day

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

Issued	Product	Office	Counties	Lasted
May 25, 3:24 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Chippewa, Dunn, Rusk	25 min
May 25, 3:42 PM CDT	Severe Thunderstorm Warning	MPX	Pepin	21 min
May 25, 3:46 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Rusk	44 min
May 25, 4:44 PM CDT	Special Weather Statement	MPX	Chippewa	46 min
May 25, 4:49 PM CDT	Special Weather Statement	MPX	Eau Claire	41 min
May 25, 4:50 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa	25 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.