Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 9, NWS Twin Cities, MN

May 9, 2001Carver County, Minnesota

NWS Twin Cities, MN issued this tornado warning at May 9, 2001, 6:43 PM CDT for Carver County, Minnesota. It was in force for 32 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: May 9, 2001, 6:43 PM CDT (23:43 UTC)
Expired: May 9, 2001, 7:15 PM CDT
In force: 32 min
Issued by: NWS Twin Cities, MN
Area: Whole counties

County Carver County, MN

The radar

The Minneapolis radar (KMPX), 19 km from the middle of the area, began a volume at 23:45 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
May 9, 6:55 PM CDT	Hail 0.75	Cologne, 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.

Issued	Product	Office	Lasted
May 9, 4:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 16 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: 6 J/kg
Mixed-layer CIN: -233 J/kg
Mixed-layer LCL: 1853 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 291 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 092344
TORMSP

MNC019-100015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
643 PM CDT WED MAY 9 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CARVER COUNTY IN MINNESOTA

* UNTIL 715 PM CDT

* AT 643 PM CDT...SEVERE WEATHER SPOTTERS REPORTED A FUNNEL CLOUD   
OVER NORWOOD...OR ABOUT 30 MILES WEST OF BURNSVILLE...MOVING EAST   
AT 20 MPH.

* SOME LOCATIONS IN THE PATH OF THIS POSSIBLE TORNADO INCLUDE 
COLOGNE AND NORWOOD YOUNG AMERICA.

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING WHICH
WAS IN EFFECT FOR THE SAME AREA.
 $$
 CWS
GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!

LAT...LON 4483 9388 4469 9388 4470 9368 4481 9358

&

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 5:10 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville, Sibley	50 min
May 9, 5:10 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Wright	50 min
May 9, 6:12 PM CDT	Severe Thunderstorm Warning	MPX	Carver, McLeod	48 min
May 9, 6:52 PM CDT	Severe Thunderstorm Warning	MPX	Scott	23 min
May 9, 6:58 PM CDT	Severe Thunderstorm Warning	MPX	Kanabec	32 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.