Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 21, NWS Twin Cities, MN

June 1, 2001Hennepin County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 1, 2001, 1:59 PM CDT for Hennepin County, Minnesota. It was in force for 46 min. No storm report in the archive falls 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.

The facts

Issued
Jun 1, 2001, 1:59 PM CDT (18:59 UTC)
Expired
Jun 1, 2001, 2:45 PM CDT
In force
46 min
Issued by
NWS Twin Cities, MN
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Hennepin County, MN

The radar

The Minneapolis radar (KMPX), 27 km from the middle of the area, began a volume at 18:59 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.0 hours before the alert went out and 27 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 2001-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2001-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
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 011901
TORMSP
MNC053-011945-

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  HENNEPIN COUNTY IN MINNESOTA
 

* UNTIL 245 PM CDT

* AT 159 PM CDT...RADAR INDICATED A DEVELOPING TORNADO 2 MILES NORTH
  OF LORETTO...OR ABOUT 20 MILES NORTHWEST OF MINNEAPOLIS...MOVING   
SOUTHEAST AT 25 MPH.  LAW ENFORECEMENT OFFICIALS HAVE ALSO REPORTED 
A FUNNEL CLOUD NEAR HIGHWAY 55 AND 92 IN WESTERN HENNEPIN COUNTY.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  ST LOUIS PARK.
  PLYMOUTH.
  THE LAKE MINNETONKA( AREA.
  MAPLE GROVE.

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

LAT...LON 4523 9370 4508 9384 4486 9340 4504 9323

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 1, 12:48 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault42 min
Jun 1, 1:07 PM CDTTornado WarningMPXHennepin, Wright23 min
Jun 1, 1:11 PM CDTSevere Thunderstorm WarningMPXFreeborn34 min
Jun 1, 1:30 PM CDTSevere Thunderstorm WarningMPXHennepin, Wright45 min
Jun 1, 1:36 PM CDTTornado WarningMPXFreeborn24 min
Jun 1, 3:28 PM CDTSevere Thunderstorm WarningMPXDakota, Scott47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.