Alert archive / Wisconsin / Tornado Warnings in 2022

Tornado Warning 11, NWS Twin Cities, MN

May 9, 2022Chippewa County, Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 9, 2022, 7:46 PM CDT for Chippewa County, Dunn County, Wisconsin. It was in force for 18 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 9, 2022, 7:46 PM CDT (00:46 UTC)
Expired: May 9, 2022, 8:04 PM CDT
In force: 18 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Chippewa County, WI, Dunn County, WI

The radar

The La Crosse radar (KARX), 144 km from the middle of the area, began a volume at 00:46 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
May 9, 2:50 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 167 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: 923 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 1801 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: -82 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

As transmitted.

310 
WFUS53 KMPX 100046
TORMPX
WIC017-033-100115-
/O.NEW.KMPX.TO.W.0011.220510T0046Z-220510T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
746 PM CDT Mon May 9 2022

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  East central Dunn County in west central Wisconsin...
  Northwestern Chippewa County in west central Wisconsin...

* Until 815 PM CDT.

* At 746 PM CDT, a confirmed tornado was located near Colfax, or 16
  miles northeast of Menomonie, moving northeast at 55 mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Weather spotters confirmed tornado.

  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.

* The tornado will be near...
  Bloomer around 755 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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.

&&

LAT...LON 4499 9164 4504 9174 4508 9177 4526 9135
      4523 9120 4511 9117
TIME...MOT...LOC 0046Z 244DEG 49KT 4506 9165 

TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN

$$

ETA

2 follow-up statements

598 
WWUS53 KMPX 100055
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
755 PM CDT Mon May 9 2022

WIC033-100105-
/O.CAN.KMPX.TO.W.0011.000000T0000Z-220510T0115Z/
Dunn WI-
755 PM CDT Mon May 9 2022

...THE TORNADO WARNING FOR EAST CENTRAL DUNN COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for west central
Wisconsin.

LAT...LON 4499 9164 4500 9166 4512 9165 4512 9167
      4526 9135 4523 9120 4511 9117
TIME...MOT...LOC 0055Z 244DEG 49KT 4512 9149 

$$

WIC017-100115-
/O.CON.KMPX.TO.W.0011.000000T0000Z-220510T0115Z/
Chippewa WI-
755 PM CDT Mon May 9 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
NORTHWESTERN CHIPPEWA COUNTY...
    
At 755 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Bloomer, or 17 miles north of Eau Claire, moving
northeast at 55 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.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Chippewa County, including the following locations...
Eagleton and Chippewa Moraine State Rec Area.

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.

&&

LAT...LON 4499 9164 4500 9166 4512 9165 4512 9167
      4526 9135 4523 9120 4511 9117
TIME...MOT...LOC 0055Z 244DEG 49KT 4512 9149 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

ETA

946 
WWUS53 KMPX 100104
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
804 PM CDT Mon May 9 2022

WIC017-100114-
/O.CAN.KMPX.TO.W.0011.000000T0000Z-220510T0115Z/
Chippewa WI-
804 PM CDT Mon May 9 2022

...THE TORNADO WARNING FOR NORTHWESTERN CHIPPEWA COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for west central
Wisconsin.

LAT...LON 4499 9164 4500 9166 4512 9165 4512 9167
      4526 9135 4523 9120 4511 9117
TIME...MOT...LOC 0103Z 244DEG 49KT 4518 9133 

$$

ETA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:08 PM CDT	Tornado Warning	MPX	Dunn, Pepin, Pierce	37 min
May 9, 7:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Dunn, Eau Claire, Pepin, Pierce	23 min
May 9, 7:24 PM CDT	Tornado Warning	MPX	Dunn	36 min
May 9, 7:45 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Eau Claire, Pepin	45 min
May 9, 8:06 PM CDT	Special Weather Statement	MPX	Rusk	24 min
May 9, 8:08 PM CDT	Special Weather Statement	MPX	Chippewa	37 min
May 9, 8:11 PM CDT	Special Weather Statement	MPX	Eau Claire	34 min
May 9, 8:23 PM CDT	Tornado Warning	MPX	Eau Claire	37 min
May 9, 8:59 PM CDT	Severe Thunderstorm Warning	MPX	Eau Claire	31 min

Nearby

Tornado Warnings in Wisconsin, 2022 Every tornado warning in 2022 Tornadoes in 2022

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.