Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 26, NWS Bismarck, ND

August 8, 2001McHenry County, Pierce County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 8, 2001, 5:28 PM CDT for McHenry County, Pierce County, North Dakota. It was in force for 32 min. 4 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: Aug 8, 2001, 5:28 PM CDT (22:28 UTC)
Expired: Aug 8, 2001, 6:00 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties McHenry County, ND, Pierce County, ND

What was reported inside it

Time	Report	Where
Aug 8, 5:30 PM CDT	Thunderstorm Wind 52 E	Anamoose, ND
Aug 8, 5:30 PM CDT	Hail 0.75	Anamoose, ND
Aug 8, 5:45 PM CDT	Hail 0.75	Drake, ND
Aug 8, 5:55 PM CDT	Hail 1.5	Orrin, ND

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

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.5 hours before the alert went out and 140 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: 311 J/kg
Mixed-layer CIN: -573 J/kg
Mixed-layer LCL: 1769 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 222 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.

813 
WFUS53 KBIS 082229
TORBIS
NDC049-069-082300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
528 PM CDT WED AUG 8 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN MCHENRY COUNTY IN NORTH CENTRAL NORTH DAKOTA
  SOUTHWESTERN PIERCE COUNTY IN NORTH CENTRAL NORTH DAKOTA

* UNTIL 600 PM CDT

* AT 528 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  POSSIBLE TORNADO 5 MILES NORTH OF DRAKE...OR ABOUT 45 MILES EAST OF MINOT
  ...MOVING EAST SOUTHEAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  DRAKE AT 535 PM CDT
  ANAMOOSE AT 545 PM CDT
  ORRIN AT 540 PM CDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

LAT...LON 4809 10039 4788 10042 4786 10005 4804 9995

RSL

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 8:47 PM CDT	Severe Thunderstorm Warning	BIS	McLean	58 min
Aug 7, 9:27 PM CDT	Severe Thunderstorm Warning	BIS	Williams	63 min
Aug 7, 10:02 PM CDT	Severe Thunderstorm Warning	BIS	Foster	43 min
Aug 7, 10:05 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail	25 min
Aug 7, 10:34 PM CDT	Severe Thunderstorm Warning	BIS	Wells	56 min
Aug 7, 11:09 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Stutsman	66 min
Aug 7, 11:20 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	60 min
Aug 8, 2:30 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	60 min
Aug 8, 11:37 AM CDT	Severe Thunderstorm Warning	BIS	Divide	63 min
Aug 8, 5:10 PM CDT	Severe Thunderstorm Warning	BIS	McHenry, Pierce	65 min

Nearby

Tornado Warnings in North Dakota, 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.