Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 92, NWS Twin Cities, MN

June 11, 2001Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2001, 5:58 PM CDT for Saint Croix County, Wisconsin. It was in force for 62 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, 5:58 PM CDT (22:58 UTC)
Expired
Jun 11, 2001, 7:00 PM CDT
In force
62 min
Issued by
NWS Twin Cities, MN
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Saint Croix County, WI

What was reported inside it

TimeReportWhereRemark
Jun 11, 7:10 PM CDTThunderstorm Wind 65 EBloomer, WISeveral barns and silos down, few garages and sheds destroyed, minor house damage, many hundreds of trees down in a swath several miles wide. About 80 roads were blocked by fallen trees. Damage figure includes totals from all storms in Chippewa County from 173

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.

IssuedProductOfficeLasted
Jun 11, 3:00 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.0 hours before the alert went out and 87 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 12:00Z on 2001-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 12:00Z on 2001-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.193958Sfc1 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
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.

000 
WUUS53 KMPX 112259
SVRMSP

WIC109-120000-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 700 PM CDT

* AT 558 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH LARGE
  HAIL AND DAMAGING WINDS 5 MILES WEST OF SOMERSET...OR ABOUT 11
  MILES WEST OF NEW RICHMOND...MOVING EAST AT 25 MPH.

* SOME LOCATIONS AFFECTED BY THIS STORM INCLUDE...
  WOODVILLE.
  SOMERSET.
  ROBERTS.
  NEW RICHMOND.
  HAMMOND.
  BALDWIN.

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
WAR<NING.

LAT...LON 4519 9276 4501 9275 4489 9223 4514 9220

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 4:18 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix42 min
Jun 11, 4:57 PM CDTSevere Thunderstorm WarningMPXPierce33 min
Jun 11, 5:06 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix54 min
Jun 11, 5:14 PM CDTTornado WarningMPXPierce31 min
Jun 11, 5:30 PM CDTSevere Thunderstorm WarningMPXBarron, Dunn60 min
Jun 11, 6:17 PM CDTSevere Thunderstorm WarningMPXPierce58 min
Jun 11, 6:23 PM CDTSevere Thunderstorm WarningMPXChippewa, Rusk52 min
Jun 11, 6:41 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin49 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001Every 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.