Alert archive / Wisconsin / Tornado Warnings in 2001

Tornado Warning 15, NWS Twin Cities, MN

May 9, 2001Barron County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at May 9, 2001, 8:29 PM CDT for Barron County, Wisconsin. It was in force for 31 min. 1 report came from 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, with what was reported inside it.

The facts

Issued: May 9, 2001, 8:29 PM CDT (01:29 UTC)
Expired: May 9, 2001, 9:00 PM CDT
In force: 31 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Barron County, WI

What was reported inside it

Time	Report	Where	Remark
May 9, 8:50 PM CDT	Hail 1.75	Cumberland, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

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, 7:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.5 hours before the alert went out and 154 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: 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 100130
TORMSP

WIC005-100200-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  BARRON COUNTY IN WISCONSIN

* UNTIL 900 PM CDT

* AT 829 PM CDT...THE PUBLIC REPORTED A FUNNEL CLOUD 5 MILES
  NORTHWEST OF CUMBERLAND...OR ABOUT 18 MILES NORTHEAST OF BALSAM
  LAKE...MOVING EAST AT 30 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  RICE LAKE.
  HAUGEN.
  CUMBERLAND.

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

LAT...LON 4563 9213 4547 9214 4546 9159 4563 9158
 $$
 CWS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 7:29 PM CDT	Severe Thunderstorm Warning	MPX	Pepin	61 min
May 9, 8:35 PM CDT	Severe Thunderstorm Warning	MPX	Pepin, Pierce	55 min
May 9, 8:59 PM CDT	Tornado Warning	MPX	Barron, Rusk	46 min
May 9, 9:16 PM CDT	Tornado Warning	MPX	Pepin, Pierce	29 min

Nearby

Tornado Warnings in Wisconsin, 2001 Every tornado warning in 2001 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.