Alert archive / Minnesota / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 113, NWS Grand Forks, ND

July 17, 2001Becker County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 17, 2001, 6:37 PM CDT for Becker County, Minnesota. It was in force for 53 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, 6:37 PM CDT (23:37 UTC)
Expired: Jul 17, 2001, 7:30 PM CDT
In force: 53 min
Issued by: NWS Grand Forks, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Becker County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 142 km from the middle of the area, began a volume at 23:41 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

International Fa, MN (KINL), launched 12:00Z, 11.6 hours before the alert went out and 265 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: 438 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 617 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KFGF 172337
SVRFAR

MNC005-180030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND-GRAND FORKS
637 PM CDT TUE JUL 17 2001

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHERN BECKER COUNTY IN NORTHWEST MINNESOTA.
  INCLUDING THE CITY OF DETROIT LAKES...

* UNTIL 730 PM CDT.

* AT 636 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES WEST OF DETROIT LAKES...MOVEMENT WAS TO
  THE EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...

  DETROIT LAKES AT 640 PM CDT...
  ROCHERT AT 705 PM CDT...
  HEIGHT OF LAND LAKE AT 720 PM CDT AND
  TOAD LAKE AT 730 PM CDT.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.

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

LAT...LON 4690 9603 4673 9603 4675 9528 4693 9533


$$

14

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, 6:40 PM CDT	Tornado Warning	FGF	Wadena	35 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2001 Every severe thunderstorm warning 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.