Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 6, NWS La Crosse, WI

May 1, 2001Fillmore County, Minnesota

NWS La Crosse, WI issued this tornado warning at May 1, 2001, 8:03 PM CDT for Fillmore County, Minnesota. It was in force for 57 min. 2 reports 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
May 1, 2001, 8:03 PM CDT (01:03 UTC)
Expired
May 1, 2001, 9:00 PM CDT
In force
57 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Fillmore County, MN

What was reported inside it

TimeReportWhereRemark
May 1, 8:10 PM CDTHail 0.88Hamilton, MN
May 1, 9:10 PM CDTHail 1Fountain, MN

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
May 1, 3:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.1 hours before the alert went out and 178 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 2001-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 453 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 2001-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -70 square meters per square second.1939587897Sfc1 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
453 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1677 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-70 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-4.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KARX 020104
TORLSE
MNC045-020200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
803 PM CDT TUE MAY 1 2001

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  FILLMORE COUNTY IN SOUTHEAST MINNESOTA

* UNTIL 900 PM CDT

* AT 803 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 6 MILES WEST OF SPRING VALLEY...OR ABOUT 21
  MILES WEST OF PRESTON...MOVING EAST AT 30 MPH.

* THE DEVELOPING TORNADO IS EXPECTED TO BE...
  NEAR FOUNTAIN AT 820 PM CDT...
  NEAR PRESTON AT 825 PM CDT...
  NEAR LANESBORO AT 835 PM CDT...
  NEAR RUSHFORD VILLAGE AT 850 PM CDT...

THIS STORM HAS A HISTORY OF PRODUCING A TORNADO. GO TO THE BASEMENT
IF A BASEMENT IS NOT AVAILABLE...GO TO AN INTERIOR ROOM ON THE LOWEST
FLOOR

$$

RIECK

LAT...LON 4381 9242 4358 9242 4360 9177 4384 9178

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 1, 7:06 PM CDTTornado WarningARXMower39 min
May 1, 7:27 PM CDTSevere Thunderstorm WarningARXDodge, Olmsted63 min
May 1, 7:44 PM CDTTornado WarningARXMower46 min
May 1, 7:51 PM CDTTornado WarningARXOlmsted39 min
May 1, 8:10 PM CDTTornado WarningARXWinona50 min
May 1, 9:02 PM CDTSevere Thunderstorm WarningARXFillmore, Winona58 min

Nearby

Tornado Warnings in Minnesota, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.