Alert archive / Wisconsin / Tornado Warnings in 2021

Tornado Warning 12, NWS Twin Cities, MN

July 28, 2021Polk County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jul 28, 2021, 8:09 PM CDT for Polk County, Wisconsin. It was in force for 35 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: Jul 28, 2021, 8:09 PM CDT (01:09 UTC)
Expired: Jul 28, 2021, 8:44 PM CDT
In force: 35 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Polk County, WI

The radar

The Minneapolis radar (KMPX), 107 km from the middle of the area, began a volume at 01:09 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
Jul 28, 7:17 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.2 hours before the alert went out and 109 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: 4815 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1185 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 374 m²/s²
0-3 km storm-relative helicity: 461 m²/s²
Significant tornado parameter: 8.9
Supercell composite: 48.1

Open this sounding in Storm Lab

The text

As transmitted.

038 
WFUS53 KMPX 290109
TORMPX
WIC095-290200-
/O.NEW.KMPX.TO.W.0012.210729T0109Z-210729T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
809 PM CDT Wed Jul 28 2021

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  Northwestern Polk County in northwestern Wisconsin...

* Until 900 PM CDT.
    
* At 808 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 6 miles east of Rush City, or 11 miles southeast of
  Pine City, moving southeast at 30 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur. Tree 
           damage is likely.

* Locations impacted include...
  Luck and Milltown.

# 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Twin Cities.

&&

LAT...LON 4566 9233 4541 9264 4542 9265 4545 9265
      4551 9273 4554 9272 4557 9277 4556 9283
      4562 9289 4564 9288 4565 9253 4572 9252
TIME...MOT...LOC 0108Z 310DEG 26KT 4570 9283 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JLT

4 follow-up statements

230 
WWUS53 KMPX 290119
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
819 PM CDT Wed Jul 28 2021

WIC095-290200-
/O.CON.KMPX.TO.W.0012.000000T0000Z-210729T0200Z/
Polk WI-
819 PM CDT Wed Jul 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHWESTERN POLK COUNTY...
    
At 819 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles south of Branstad, or 17 miles southeast of Pine
City, moving southeast at 35 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

Locations impacted include...
St. Croix Falls, Frederic, Luck, Taylors Falls, Milltown, Wolf Creek,
Cushing, Wild River State Park and Straight Lake Wilderness State
Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4566 9233 4541 9264 4542 9265 4545 9265
      4551 9273 4554 9272 4557 9277 4556 9283
      4562 9289 4564 9288 4565 9253 4572 9252
TIME...MOT...LOC 0119Z 313DEG 29KT 4563 9273 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JLT

999 
WWUS53 KMPX 290127
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
827 PM CDT Wed Jul 28 2021

WIC095-290200-
/O.CON.KMPX.TO.W.0012.000000T0000Z-210729T0200Z/
Polk WI-
827 PM CDT Wed Jul 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
POLK COUNTY...
    
At 827 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles northwest of Milltown, or 24 miles southeast of
Pine City, moving southeast at 40 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

Locations impacted include...
St. Croix Falls, Luck, Taylors Falls, Milltown, Wolf Creek, Cushing
and Wild River State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4557 9245 4541 9264 4542 9265 4545 9265
      4551 9273 4554 9272 4560 9274 4563 9256
      4562 9248
TIME...MOT...LOC 0127Z 307DEG 35KT 4558 9262 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

JLT

608 
WWUS53 KMPX 290138
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
838 PM CDT Wed Jul 28 2021

WIC095-290200-
/O.CON.KMPX.TO.W.0012.000000T0000Z-210729T0200Z/
Polk WI-
838 PM CDT Wed Jul 28 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
POLK COUNTY...
    
At 838 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Milltown, or 28 miles southeast of Pine City, moving
southeast at 30 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

Locations impacted include...
St. Croix Falls, Taylors Falls, Milltown and Wild River State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4541 9264 4542 9265 4545 9265 4551 9273
      4554 9272 4558 9260 4556 9252 4554 9248
TIME...MOT...LOC 0138Z 318DEG 27KT 4552 9258 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JLT

369 
WWUS53 KMPX 290144
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
844 PM CDT Wed Jul 28 2021

WIC095-290154-
/O.CAN.KMPX.TO.W.0012.000000T0000Z-210729T0200Z/
Polk WI-
844 PM CDT Wed Jul 28 2021

...THE TORNADO WARNING FOR CENTRAL POLK COUNTY IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However heavy rain is still possible with this
thunderstorm.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
east central Minnesota...and northwestern Wisconsin.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
the Twin Cities.

LAT...LON 4541 9264 4542 9265 4545 9265 4551 9273
      4554 9272 4558 9260 4556 9252 4554 9248
TIME...MOT...LOC 0142Z 310DEG 26KT 4549 9253 

$$

JLT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 7:19 PM CDT	Special Weather Statement	MPX	Rusk	26 min
Jul 28, 7:37 PM CDT	Severe Thunderstorm Warning	MPX	Rusk	23 min
Jul 28, 7:43 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Polk, Rusk	32 min
Jul 28, 8:01 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Chippewa, Rusk	44 min
Jul 28, 8:46 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Chippewa, Rusk	59 min
Jul 28, 8:55 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Polk	50 min
Jul 28, 9:08 PM CDT	Tornado Warning	MPX	Chippewa	37 min
Jul 28, 9:25 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Saint Croix	65 min
Jul 28, 9:30 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Eau Claire	60 min
Jul 28, 9:36 PM CDT	Tornado Warning	MPX	Saint Croix	24 min
Jul 28, 9:37 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	38 min
Jul 28, 9:55 PM CDT	Tornado Warning	MPX	Saint Croix	35 min
Jul 28, 10:09 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce, Saint Croix	51 min
Jul 28, 10:18 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Eau Claire, Pepin	42 min
Jul 28, 10:21 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	24 min
Jul 28, 10:36 PM CDT	Severe Thunderstorm Warning	MPX	Pepin	39 min
Jul 28, 10:57 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce	48 min

Nearby

Tornado Warnings in Wisconsin, 2021 Every tornado warning in 2021 Tornadoes 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.