Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 19, NWS Twin Cities, MN

June 1, 2001Hennepin County, Wright County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 1, 2001, 1:07 PM CDT for Hennepin County, Wright County, Minnesota. It was in force for 23 min. 2 reports 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 1, 2001, 1:07 PM CDT (18:07 UTC)
Expired: Jun 1, 2001, 1:30 PM CDT
In force: 23 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Hennepin County, MN, Wright County, MN

The radar

The Minneapolis radar (KMPX), 47 km from the middle of the area, began a volume at 18:09 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

Time	Report	Where	Remark
Jun 1, 1:10 PM CDT	Tornado F0	Maple Lake, MN	Touched down on Maple Lake, drawing water up into a condensation funnel. Tornado made it to shore and flipped a few docks and boats, and knocked down a few trees.
Jun 1, 1:36 PM CDT	Hail 0.75	Rockford, 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 6.1 hours before the alert went out and 46 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: 1164 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 155 m²/s²
0-3 km storm-relative helicity: 185 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 
WFUS53 KMPX 011809
TORMSP
MNC053-171-011830-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
107 PM CDT FRI JUN 1 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN HENNEPIN COUNTY IN MINNESOTA
  WRIGHT COUNTY IN MINNESOTA

* UNTIL 130 PM CDT

* AT 107 PM CDT...THE PUBLIC REPORTED A TORNADO 2 MILES SOUTHWEST OF 
BUFFALO.  THE TORNADO WAS MOVING SOUTHEAST AT 30 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  BUFFALO.
  ROCKFORD
  GREENFIELD

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

LAT...LON 4536 9391 4519 9407 4504 9365 4523 9347

a&
EDWARDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 1, 12:48 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Faribault	42 min
Jun 1, 1:11 PM CDT	Severe Thunderstorm Warning	MPX	Freeborn	34 min
Jun 1, 1:30 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Wright	45 min
Jun 1, 1:36 PM CDT	Tornado Warning	MPX	Freeborn	24 min
Jun 1, 1:59 PM CDT	Tornado Warning	MPX	Hennepin	46 min
Jun 1, 3:28 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	47 min

Nearby

Tornado Warnings in Minnesota, 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; radar from the NEXRAD Level II archive.