Alert archive / Minnesota / Tornado Warnings in 2001

Tornado Warning 24, NWS Grand Forks, ND

July 17, 2001Beltrami County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 17, 2001, 5:24 PM CDT for Beltrami County, Minnesota. It was in force for 36 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, 5:24 PM CDT (22:24 UTC)
Expired
Jul 17, 2001, 6:00 PM CDT
In force
36 min
Issued by
NWS Grand Forks, ND
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Beltrami County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 201 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 120 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, International Fa, MN at 12:00Z on 2001-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 438 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2001-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.1939Sfc1 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
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 
WFUS53 KFGF 172225
TORFAR

MNC007-172300-

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

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  CENTRAL BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA.

* UNTIL 600 PM CDT.

* AT 520 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 16 MILES NORTHWEST OF SHOTLEY...OR ABOUT 48 MILES NORTH OF
  BEMIDJI...MOVEMENT WAS TO THE SOUTHEAST AT 10 MPH.

* A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE REMAINDER  
  OF BELTRAMI COUTNY.

* THE TORNADO WILL REMAIN IN 

  RURAL AREAS AT THIS TIME

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

LAT...LON 4829 9494 4816 9513 4790 9457 4823 9448


$$
BRAZZELL

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 9:45 PM CDTSevere Thunderstorm WarningFGFKittson45 min
Jul 16, 10:15 PM CDTFlash Flood WarningFGFKittson4 hr
Jul 17, 2:28 PM CDTSevere Thunderstorm WarningFGFBeltrami47 min
Jul 17, 3:54 PM CDTSevere Thunderstorm WarningFGFBeltrami51 min
Jul 17, 4:14 PM CDTSevere Thunderstorm WarningFGFRoseau61 min
Jul 17, 4:25 PM CDTTornado WarningFGFBeltrami35 min
Jul 17, 4:59 PM CDTSevere Thunderstorm WarningFGFBeltrami46 min
Jul 17, 5:04 PM CDTSevere Thunderstorm WarningFGFLake of the Woods56 min
Jul 17, 5:59 PM CDTTornado WarningFGFBeltrami31 min
Jul 17, 6:01 PM CDTSevere Thunderstorm WarningFGFLake of the Woods44 min
Jul 17, 6:05 PM CDTSevere Thunderstorm WarningFGFMarshall55 min
Jul 17, 6:25 PM CDTTornado WarningFGFBeltrami35 min
Jul 17, 6:37 PM CDTFlash Flood WarningFGFBeltrami, Lake of the Woods5 hr
Jul 17, 6:37 PM CDTSevere Thunderstorm WarningFGFBecker53 min
Jul 17, 6:40 PM CDTTornado WarningFGFWadena35 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.