Alert archive / Wisconsin / Tornado Warnings in 2000

Tornado Warning 28, NWS Twin Cities, MN

July 26, 2000Pierce County, Saint Croix County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jul 26, 2000, 12:42 PM CDT for Pierce County, Saint Croix County, Wisconsin. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 26, 2000, 12:42 PM CDT (17:42 UTC)
Expired
Jul 26, 2000, 1:15 PM CDT
In force
33 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Pierce County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 17:46 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.

What was reported inside it

TimeReportWhereRemark
Jul 26, 1:02 PM CDTTornado F0Hudson, WIBrief touchdown in cornfield. No damage reported.

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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 92 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 2000-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 196 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 2000-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
196 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

574 
WFUS53 KMPX 261742
TORMSP
WIC093-109-261815-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1242 PM CDT WED JUL 26 2000

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN ST. CROIX COUNTY IN WEST CENTRAL WISCONSIN
  PIERCE COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 115 PM CDT

* AT 1242 PM CDT LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A
  DEVELOPING TORNADO 4 MILES NORTH OF RIVER FALLS...MOVING
  SOUTHEAST AT 5 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  SPRING VALLEY
  ROBERTS
  RIVER FALLS
  ELLSWORTH

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 9:08 PM CDTSevere Thunderstorm WarningMPXBarron, Polk52 min
Jul 25, 9:08 PM CDTSevere Thunderstorm WarningMPXRusk52 min

Nearby

Tornado Warnings in Wisconsin, 2000Every tornado warning in 2000Tornadoes in 2000

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; radar from the NEXRAD Level II archive.