Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 28, NWS Grand Forks, ND

July 17, 2001Wadena County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 17, 2001, 6:40 PM CDT for Wadena County, Minnesota. It was in force for 35 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: Jul 17, 2001, 6:40 PM CDT (23:40 UTC)
Expired: Jul 17, 2001, 7:15 PM CDT
In force: 35 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Wadena County, MN

The radar

The Duluth radar (KDLH), 203 km from the middle of the area, began a volume at 23:43 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, 11.7 hours before the alert went out and 231 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: 2475 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 105 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.7

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KFGF 172340
TORFAR

MNC159-180015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
640 PM CDT TUE JUL 17 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  NORTHEASTERN WADENA COUNTY IN CENTRAL MINNESOTA.

* UNTIL 715 PM CDT.

* AT 636 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER HUNTERSVILLE...OR ABOUT 45 MILES EAST OF DETROIT
  LAKES...MOVEMENT WAS TO THE EAST AT 20 MPH.

* THE TORNADO WILL REMAIN IN RURAL AREAS OF

  NORTHEASTERN WADENA COUNTY.

THIS IS A DANGEROUS STORM. IF YOU ARE IN THE PATH OF THIS TORNADO
ABANDON CARS AND MOBILE HOMES FOR A STURDY BUILDING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM CDT
TUESDAY EVENING FOR EASTERN NORTH DAKOTA.

LAT...LON 4680 9500 4668 9503 4657 9463 4679 9469


$$
BRAZZELL

NNNN

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 9:45 PM CDT	Severe Thunderstorm Warning	FGF	Kittson	45 min
Jul 16, 10:15 PM CDT	Flash Flood Warning	FGF	Kittson	4 hr
Jul 17, 2:28 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	47 min
Jul 17, 3:54 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	51 min
Jul 17, 4:14 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	61 min
Jul 17, 4:25 PM CDT	Tornado Warning	FGF	Beltrami	35 min
Jul 17, 4:59 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	46 min
Jul 17, 5:04 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	56 min
Jul 17, 5:24 PM CDT	Tornado Warning	FGF	Beltrami	36 min
Jul 17, 5:59 PM CDT	Tornado Warning	FGF	Beltrami	31 min
Jul 17, 6:01 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	44 min
Jul 17, 6:05 PM CDT	Severe Thunderstorm Warning	FGF	Marshall	55 min
Jul 17, 6:25 PM CDT	Tornado Warning	FGF	Beltrami	35 min
Jul 17, 6:37 PM CDT	Flash Flood Warning	FGF	Beltrami, Lake of the Woods	5 hr
Jul 17, 6:37 PM CDT	Severe Thunderstorm Warning	FGF	Becker	53 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.