Alert archive / Minnesota / Tornado Warnings in 2002

Tornado Warning 20, NWS Grand Forks, ND

August 11, 2002Beltrami County, Clearwater County, Hubbard County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 11, 2002, 8:53 PM CDT for Beltrami County, Clearwater County, Hubbard County, Minnesota. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 11, 2002, 8:53 PM CDT (01:53 UTC)
Expired: Aug 11, 2002, 9:45 PM CDT
In force: 52 min
Issued by: NWS Grand Forks, ND
Area: Counties, with a storm outline in the text

Counties Beltrami County, MN, Clearwater County, MN, Hubbard County, MN

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 11, 6:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 1.9 hours before the alert went out and 181 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: 204 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1684 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 40 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

259 
WFUS53 KFGF 120153
TORFAR
MNC007-029-057-120245-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS
851 PM CDT SUN AUG 11 2002

THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHERN BELTRAMI COUNTY IN NORTH CENTRAL MINNESOTA...
  NORTHERN HUBBARD COUNTY IN NORTH CENTRAL MINNESOTA AND
  EAST CENTRAL CLEARWATER COUNTY IN NORTHWEST MINNESOTA.

* UNTIL 945 PM CDT.

* AT 845 PM...A BRIEF TORNADO TOUCHDOWN WAS REPORTED 1 MILES SOUTH   
  OF BAGELY IN OPEN COUNTRY.  RADAR INDICATED THE LEADING EDGE OF    
  THESE SEVERE THUNDERSTORMS 22 MILES WEST OF BEMDIJI OVER UPPER RICE
  LAKE.  MOVEMENT WAS TO THE EAST AT 40 MPH.

* THE THUNDERSTORMS PRODUCING POSSIBLE TORNADOES WILL BE NEAR...

  BECIDA AT 900 PM...
  WILTON AT 910 PM...
  BEMIDJI AT 915 PM AND
  ROSBY AT 920 PM.

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 MIDNIGHT MONDAY
MORNING FOR NORTHWESTERN MINNESOTA AND SOUTHEAST NORTH DAKOTA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT
MONDAY MORNING FOR WEST CENTRAL MINNESOTA AND SOUTHEAST NORTH DAKOTA.

LAT...LON 4747 9538 4729 9537 4728 9443 4753 9444


DTR

NNNN

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 11, 7:12 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman	48 min
Aug 11, 7:51 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clearwater, Mahnomen	54 min
Aug 11, 7:56 PM CDT	Tornado Warning	FGF	Mahnomen, Norman	49 min
Aug 11, 8:37 PM CDT	Severe Thunderstorm Warning	FGF	Polk	23 min
Aug 11, 8:46 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard	59 min
Aug 11, 9:37 PM CDT	Severe Thunderstorm Warning	FGF	Otter Tail, Wadena	38 min
Aug 11, 11:15 PM CDT	Severe Thunderstorm Warning	FGF	Grant	45 min
Aug 12, 12:19 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	56 min

Nearby

Tornado Warnings in Minnesota, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.