Alert archive / Wisconsin / Tornado Warnings in 2024

Tornado Warning 6, NWS Twin Cities, MN

May 21, 2024Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 21, 2024, 5:35 PM CDT for Dunn County, Wisconsin. It was in force for 25 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 21, 2024, 5:35 PM CDT (22:35 UTC)
Expired
May 21, 2024, 6:00 PM CDT
In force
25 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Dunn County, WI

The radar

The La Crosse radar (KARX), 122 km from the middle of the area, began a volume at 22:36 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.6 hours before the alert went out and 142 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2024-05-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 67 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2024-05-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
67 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
840 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

886 
WFUS53 KMPX 212235
TORMPX
WIC033-212300-
/O.NEW.KMPX.TO.W.0006.240521T2235Z-240521T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Twin Cities/Chanhassen MN
535 PM CDT Tue May 21 2024

The National Weather Service in the Twin Cities has issued a

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

* Until 600 PM CDT.

* At 535 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Menomonie, moving northeast at 40 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.

* This dangerous storm will be near...
  Menomonie around 540 PM CDT.
  Elk Mound around 550 PM CDT.
  Colfax around 555 PM CDT.

Other locations impacted by this tornadic thunderstorm include Cedar
Falls, Hoffman Hills Rec Area, Downsville, Tainter Lake, and
Menomonie Airport.

This includes Interstate 94 in Wisconsin between mile markers 43 and
55.
 
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 4468 9181 4469 9201 4502 9187 4501 9165
      4490 9165
TIME...MOT...LOC 2235Z 218DEG 33KT 4479 9191 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

ETA
1 follow-up statement
647 
WWUS53 KMPX 212248
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
548 PM CDT Tue May 21 2024

WIC033-212300-
/O.CON.KMPX.TO.W.0006.000000T0000Z-240521T2300Z/
Dunn WI-
548 PM CDT Tue May 21 2024

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHEASTERN DUNN COUNTY...

At 547 PM CDT, severe thunderstorms capable of producing a tornado 
were located east of Menomonie, moving northeast at 40 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.

This dangerous storm will be near...
  Colfax around 555 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Hoffman Hills 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 4478 9174 4478 9187 4502 9181 4501 9165
      4490 9165
TIME...MOT...LOC 2247Z 218DEG 33KT 4488 9181 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

ETA

The office that day

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

IssuedProductOfficeCountiesLasted
May 21, 1:54 AM CDTSevere Thunderstorm WarningMPXPolk36 min
May 21, 2:28 AM CDTSevere Thunderstorm WarningMPXPolk32 min
May 21, 4:46 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce44 min
May 21, 5:20 PM CDTTornado WarningMPXPierce22 min
May 21, 6:05 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin, Pierce55 min
May 21, 6:35 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire55 min

Nearby

Tornado Warnings in Wisconsin, 2024Every tornado warning in 2024Tornadoes in 2024

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.