Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 85, NWS Twin Cities, MN

June 11, 2001Polk County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2001, 5:06 PM CDT for Polk County, Saint Croix County, Wisconsin. It was in force for 54 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: Jun 11, 2001, 5:06 PM CDT (22:06 UTC)
Expired: Jun 11, 2001, 6:00 PM CDT
In force: 54 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Polk County, WI, Saint Croix County, WI

What was reported inside it

Time	Report	Where	Remark
Jun 11, 5:40 PM CDT	Thunderstorm Wind 52 E	New Richmond, WI	Scattered trees toppled.

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
Jun 11, 2:15 PM CDT	Tornado Watch	SPC	6 hr
Jun 11, 3:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.1 hours before the alert went out and 104 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1636 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

217 
WUUS53 KMPX 112206
SVRMSP
WIC095-109-112300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
506 PM CDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  POLK COUNTY IN WISCONSIN
  ST. CROIX COUNTY IN WISCONSIN

* UNTIL 600 PM CDT

* AT 506 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL AND DAMAGING WINDS 16 MILES NORTHWEST OF ST CROIX FALLS...OR
  ABOUT 15 MILES EAST OF CAMBRIDGE...MOVING EAST AT 35 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  NEW RICHMOND.
  BALSAM LAKE.
  AMERY.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

THIS IS A DANGEROUS STORM...STAY INDOORS AWAY FROM WINDOWS. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 4563 9267 4533 9269 4511 9271 4504 9220
          4565 9219

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 4:18 PM CDT	Severe Thunderstorm Warning	MPX	Pierce, Saint Croix	42 min
Jun 11, 4:57 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	33 min
Jun 11, 5:14 PM CDT	Tornado Warning	MPX	Pierce	31 min
Jun 11, 5:30 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn	60 min
Jun 11, 5:58 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	62 min
Jun 11, 6:17 PM CDT	Severe Thunderstorm Warning	MPX	Pierce	58 min
Jun 11, 6:23 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Rusk	52 min
Jun 11, 6:41 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Pepin	49 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001 Every severe thunderstorm warning 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.