Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 25, NWS Bismarck, ND

July 26, 2001Grant County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 26, 2001, 8:39 PM MDT for Grant County, North Dakota. It was in force for 51 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 26, 2001, 8:39 PM MDT (02:39 UTC)
Expired: Jul 26, 2001, 9:30 PM MDT
In force: 51 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Grant County, ND

The radar

The Bismarck radar (KBIS), 72 km from the middle of the area, began a volume at 02:38 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 26, 7:00 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.7 hours before the alert went out and 76 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: 1482 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 906 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 270240
TORBIS

NDC037-270330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
839 PM MDT THU JUL 26 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL GRANT COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 930 PM MDT

* AT 839 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER CENTRAL GRANT COUNTY...OR ABOUT 48 MILES SOUTHWEST OF
  BISMARCK...MOVING NORTHEAST AT 10 MPH.

* THE TORNADO IS EXPECTED TO BE REMAIN IN...
  RURAL NORTHERN GRANT COUNTY 
 
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
THURSDAY EVENING FOR NORTHWEST NORTH DAKOTA. A SEVERE THMUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 100 AM MDT FRIDAY MORNING FOR
WESTERN NORTH DAKOTA.

LAT...LON 4652 10174 4640 10165 4660 10135 4661 10167

RSL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 6:21 PM MDT	Severe Thunderstorm Warning	BIS	Morton	54 min
Jul 26, 7:46 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	59 min
Jul 26, 8:06 PM MDT	Tornado Warning	BIS	Grant	24 min
Jul 26, 8:26 PM MDT	Flash Flood Warning	BIS	Bowman, Grant, Hettinger	3 hr
Jul 26, 9:15 PM MDT	Flash Flood Warning	BIS	Bottineau	3 hr
Jul 26, 9:31 PM MDT	Flash Flood Warning	BIS	Burleigh, Morton	3 hr
Jul 26, 10:17 PM MDT	Flash Flood Warning	BIS	Rolette	3 hr
Jul 26, 11:18 PM MDT	Flash Flood Warning	BIS	Burleigh, Grant, Hettinger, Morton	6 hr
Jul 27, 12:02 AM MDT	Flash Flood Warning	BIS	Bottineau, Rolette	5 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.