Alert archive / Wisconsin / Tornado Warnings in 2001

Tornado Warning 17, NWS Twin Cities, MN

May 9, 2001Barron County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 9, 2001, 8:59 PM CDT for Barron County, Rusk County, Wisconsin. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
May 9, 2001, 8:59 PM CDT (01:59 UTC)
Expired
May 9, 2001, 9:45 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Barron County, WI, Rusk County, WI

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 9, 7:30 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.0 hours before the alert went out and 179 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 2001-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1211 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 00:00Z on 2001-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 368 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
1211 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1740 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
368 m²/s²
0-3 km storm-relative helicity
795 m²/s²
Significant tornado parameter
1.1
Supercell composite
8.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMPX 100200
TORMSP
WIC005-107-100245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
859 PM CDT WED MAY 9 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 945 PM CDT

* AT 859 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD 10 MILES 
NORTHWEST OF   RICE LAKE...MOVING EAST AT 25 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  WEYERHAEUSER.
  RICE LAKE.
  ISLAND LAKE.
  CAMERON.
  BRUCE.

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

LAT...LON 4562 9186 4544 9189 4533 9103 4558 9099
 $$
CWS

The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:29 PM CDTSevere Thunderstorm WarningMPXPepin61 min
May 9, 8:29 PM CDTTornado WarningMPXBarron31 min
May 9, 8:35 PM CDTSevere Thunderstorm WarningMPXPepin, Pierce55 min
May 9, 9:16 PM CDTTornado WarningMPXPepin, Pierce29 min

Nearby

Tornado Warnings in Wisconsin, 2001Every tornado warning in 2001Tornadoes in 2001

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.