Alert archive / Wisconsin / Tornado Warnings in 2022

Tornado Warning 8, NWS Twin Cities, MN

May 9, 2022Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 9, 2022, 6:38 PM CDT for Dunn County, Wisconsin. It was in force for 37 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, 6:38 PM CDT (23:38 UTC)
Expired: May 9, 2022, 7:15 PM CDT
In force: 37 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Dunn County, WI

The radar

The Minneapolis radar (KMPX), 131 km from the middle of the area, began a volume at 23:40 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 12:00Z, 11.6 hours before the alert went out and 133 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: 892 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 364 m²/s²
0-3 km storm-relative helicity: 413 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

702 
WFUS53 KMPX 092338
TORMPX
WIC033-100015-
/O.NEW.KMPX.TO.W.0008.220509T2338Z-220510T0015Z/

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

The National Weather Service in the Twin Cities has issued a

* Tornado Warning for...
  Northern Dunn County in west central Wisconsin...

* Until 715 PM CDT.
    
* At 637 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Boyceville, or 11 miles northwest of Menomonie,
  moving northeast at 45 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 dangerous storm will be near...
  Wheeler around 650 PM CDT.

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 4496 9210 4504 9214 4519 9183 4516 9173
      4506 9169
TIME...MOT...LOC 2337Z 239DEG 39KT 4501 9208 

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

$$

ETA

2 follow-up statements

241 
WWUS53 KMPX 092351
SVSMPX

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

WIC033-100015-
/O.CON.KMPX.TO.W.0008.000000T0000Z-220510T0015Z/
Dunn WI-
651 PM CDT Mon May 9 2022

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN DUNN COUNTY...
    
At 651 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Wheeler, or 13 miles north of Menomonie, moving
northeast at 45 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
northeastern Dunn County.

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 4501 9195 4512 9198 4519 9183 4516 9173
      4509 9170
TIME...MOT...LOC 2351Z 239DEG 39KT 4509 9189 

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

$$

ETA

042 
WWUS53 KMPX 100007
SVSMPX

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

WIC033-100016-
/O.EXP.KMPX.TO.W.0008.000000T0000Z-220510T0015Z/
Dunn WI-
707 PM CDT Mon May 9 2022

...THE TORNADO WARNING FOR NORTHEASTERN DUNN COUNTY WILL EXPIRE AT
715 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

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

LAT...LON 4501 9195 4512 9198 4519 9183 4516 9173
      4509 9170
TIME...MOT...LOC 0006Z 239DEG 39KT 4517 9169 

$$

ETA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 10:13 AM CDT	Severe Thunderstorm Warning	MPX	Polk	47 min
May 9, 10:26 AM CDT	Severe Thunderstorm Warning	MPX	Polk	34 min
May 9, 10:43 AM CDT	Severe Thunderstorm Warning Considerable damage threat	MPX	Barron, Polk	30 min
May 9, 5:03 PM CDT	Severe Thunderstorm Warning	MPX	Polk	42 min
May 9, 5:15 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	45 min
May 9, 5:20 PM CDT	Tornado Warning	MPX	Polk	25 min
May 9, 5:27 PM CDT	Tornado Warning	MPX	Pierce	33 min
May 9, 5:40 PM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	35 min
May 9, 6:00 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Saint Croix	45 min
May 9, 6:04 PM CDT	Severe Thunderstorm Warning	MPX	Polk	41 min
May 9, 6:12 PM CDT	Severe Thunderstorm Warning	MPX	Polk, Saint Croix	33 min
May 9, 6:48 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin, Pierce	42 min
May 9, 6:57 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Saint Croix	33 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.