Alert archive / Wisconsin / Tornado Warnings in 2004

Tornado Warning 45, NWS Twin Cities, MN

September 5, 2004Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Sep 5, 2004, 7:33 PM CDT for Dunn County, Wisconsin. It was in force for 27 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
Sep 5, 2004, 7:33 PM CDT (00:33 UTC)
Expired
Sep 5, 2004, 8:00 PM CDT
In force
27 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Dunn County, WI

The radar

The Minneapolis radar (KMPX), 119 km from the middle of the area, began a volume at 00:32 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 00:00Z, 0.6 hours before the alert went out and 122 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 00:00Z on 2004-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2004-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 417 square meters per square second.1939587897Sfc1 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
93 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
417 m²/s²
0-3 km storm-relative helicity
457 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

086 
WFUS53 KMPX 060033
TORMPX
WIC033-060100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
731 PM CDT SUN SEP 5 2004

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  DUNN COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 800 PM CDT

* AT 728 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO ON THE GROUND 8 
  MILES EAST OF BALDWIN...NEAR HERSEY...MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  DOWNING.
  CONNORSVILLE.

LAT...LON 4509 9215 4501 9213 4521 9190 4521 9216

$$

RAH/SEB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 7:16 PM CDTTornado WarningMPXPolk, Saint Croix29 min
Sep 5, 7:53 PM CDTTornado WarningMPXBarron22 min

Nearby

Tornado Warnings in Wisconsin, 2004Every tornado warning in 2004Tornadoes in 2004

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.