Alert archive / Wisconsin / Tornado Warnings in 2004

Tornado Warning 46, NWS Twin Cities, MN

September 5, 2004Barron County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Sep 5, 2004, 7:53 PM CDT for Barron County, Wisconsin. It was in force for 22 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, 7:53 PM CDT (00:53 UTC)
Expired
Sep 5, 2004, 8:15 PM CDT
In force
22 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

County Barron County, WI

The radar

The Minneapolis radar (KMPX), 135 km from the middle of the area, began a volume at 00:54 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, 0.9 hours before the alert went out and 137 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.

000 
WFUS53 KMPX 060053
TORMPX
WIC005-060115-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  BARRON COUNTY IN NORTHWEST WISCONSIN

* UNTIL 815 PM CDT

* AT 752 PM CDT...RADAR WAS TRACKING A SEVERE STORM WITH STRONG
  ROTATION...7 MILES WEST OF PRAIRIE FARM...OR ABOUT 14 MILES        
  SOUTHEAST OF AMERY...MOVING NORTH AT 40 MPH. THIS STORM PRODUCED A 
  TORNADO IN ST. CROIX COUNTY...AND SEVERAL REPORTS OF FUNNEL CLOUDS 
  AND ROTATING WALL CLOUDS IN NORTHWESTERN DUNN COUNTY. 

* LOCATIONS IMPACTED INCLUDE...
  ALMENA.
  CUMBERLAND.
  HAUGEN.
  PRAIRIE FARM.
  BARRONETT.
  COMSTOCK.

LAT...LON 4522 9215 4522 9196 4563 9177 4563 9211

$$

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, 7:33 PM CDTTornado WarningMPXDunn27 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.