Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 23, NWS Twin Cities, MN

June 11, 2001Swift County, Minnesota

NWS Twin Cities, MN issued this tornado warning at Jun 11, 2001, 2:42 PM CDT for Swift County, Minnesota. It was in force for 48 min. 8 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 11, 2001, 2:42 PM CDT (19:42 UTC)
Expired: Jun 11, 2001, 3:30 PM CDT
In force: 48 min
Issued by: NWS Twin Cities, MN
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Swift County, MN

What was reported inside it

Time	Report	Where	Remark
Jun 11, 2:43 PM CDT	Tornado F0	Danvers, MN	Few trees knocked down on southern outskirts of town.
Jun 11, 2:44 PM CDT	Tornado F0	Danvers, MN	Radio tower knocked down, few trees broken on the north edge of town.
Jun 11, 2:48 PM CDT	Tornado F1	Danvers, MN	Shed, grain bins destroyed, windows blown out. High tension electric transmission line knocked down.
Jun 11, 2:49 PM CDT	Tornado F0	Danvers, MN	Brief touchdown on edge of open field. Few broken trees.
Jun 11, 3:00 PM CDT	Tornado F0	De Graff, MN	Brief tornado over open land tracked east and crossed Highway 212 before dissipating.
Jun 11, 3:06 PM CDT	Tornado F2	Benson, MN	After several brief tornadoes around Danvers, a much larger tornado struck the east side of Benson and travelled southeast along Highway 212. 71 structures were damaged, including 4 homes and 7 businesses that had to be demolished. The tornado lifted off in De
Jun 11, 3:26 PM CDT	Thunderstorm Wind 60 E	Murdock, MN	Several sheds down, some siding off homes, numerous trees down, mostly on western side of town.
Jun 11, 3:33 PM CDT	Tornado F0	Kerkhoven, MN	Tornado knocked down a few dozen trees.

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, 7.7 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-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: 1636 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 168 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 111943
TORMSP
MNC151-112030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
242 PM CDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  SWIFT COUNTY IN WEST CENTRAL MINNESOTA

* UNTIL 330 PM CDT

* AT 241 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO 3 MILES WEST OF HOLLOWAY...OR ABOUT 18 MILES WEST OF 
  BENSON.  THERE HAVE BEEN REPORTS FROM THE PUBLIC OF FUNNEL CLOUDS.
  THE STORM WAS MOVING EAST AT 30 MPH.

* SOME LOCATIONS IN THE PATH OF THIS TORNADO INCLUDE...
  HOLLOWAY.
  DE GRAFF.
  DANVERS.
  BENSON.

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

LAT...LON 4541 9603 4521 9606 4520 9533 4539 9535
$$
TDK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 9:48 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	42 min
Jun 11, 10:22 AM CDT	Severe Thunderstorm Warning	MPX	Todd	53 min
Jun 11, 10:45 AM CDT	Severe Thunderstorm Warning	MPX	Morrison, Stearns	45 min
Jun 11, 11:01 AM CDT	Severe Thunderstorm Warning	MPX	Douglas	44 min
Jun 11, 11:13 AM CDT	Severe Thunderstorm Warning	MPX	Todd	62 min
Jun 11, 12:36 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	39 min
Jun 11, 2:05 PM CDT	Severe Thunderstorm Warning	MPX	Stevens, Swift	40 min
Jun 11, 2:19 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	56 min
Jun 11, 2:19 PM CDT	Severe Thunderstorm Warning	MPX	Todd	56 min
Jun 11, 2:48 PM CDT	Tornado Warning	MPX	Todd	32 min
Jun 11, 2:49 PM CDT	Severe Thunderstorm Warning	MPX	Morrison	56 min
Jun 11, 3:15 PM CDT	Severe Thunderstorm Warning	MPX	Pope	45 min
Jun 11, 3:24 PM CDT	Tornado Warning	MPX	Kandiyohi, Swift	36 min
Jun 11, 3:29 PM CDT	Severe Thunderstorm Warning	MPX	Benton	31 min
Jun 11, 3:46 PM CDT	Severe Thunderstorm Warning	MPX	Mille Lacs	44 min
Jun 11, 3:50 PM CDT	Severe Thunderstorm Warning	MPX	Sherburne	40 min
Jun 11, 3:55 PM CDT	Tornado Warning	MPX	Kandiyohi, Meeker	50 min
Jun 11, 4:00 PM CDT	Severe Thunderstorm Warning	MPX	Benton	30 min
Jun 11, 4:03 PM CDT	Severe Thunderstorm Warning	MPX	Stearns	57 min
Jun 11, 4:05 PM CDT	Severe Thunderstorm Warning	MPX	Isanti, Kanabec	40 min
Jun 11, 4:18 PM CDT	Severe Thunderstorm Warning	MPX	Washington	42 min
Jun 11, 4:18 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	42 min
Jun 11, 4:30 PM CDT	Severe Thunderstorm Warning	MPX	Anoka, Chisago	45 min
Jun 11, 4:30 PM CDT	Severe Thunderstorm Warning	MPX	Carver, Hennepin, Wright	45 min
Jun 11, 4:30 PM CDT	Severe Thunderstorm Warning	MPX	Ramsey	45 min
Jun 11, 4:41 PM CDT	Tornado Warning	MPX	McLeod, Meeker, Wright	49 min
Jun 11, 5:10 PM CDT	Severe Thunderstorm Warning	MPX	Chisago, Washington	35 min
Jun 11, 5:10 PM CDT	Tornado Warning	MPX	Carver	50 min
Jun 11, 5:26 PM CDT	Severe Thunderstorm Warning	MPX	Hennepin, Wright	64 min
Jun 11, 5:43 PM CDT	Severe Thunderstorm Warning	MPX	Dakota, Scott	47 min
Jun 11, 5:43 PM CDT	Severe Thunderstorm Warning	MPX	Carver	47 min
Jun 11, 5:51 PM CDT	Severe Thunderstorm Warning	MPX	Ramsey, Washington	39 min
Jun 11, 6:17 PM CDT	Severe Thunderstorm Warning	MPX	Goodhue	58 min
Jun 11, 6:32 PM CDT	Severe Thunderstorm Warning	MPX	Dakota	28 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.