Alert archive / North Dakota / Tornado Warnings in 2001

Tornado Warning 7, NWS Bismarck, ND

July 17, 2001Kidder County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 17, 2001, 4:42 PM CDT for Kidder County, North Dakota. It was in force for 33 min. 1 report 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: Jul 17, 2001, 4:42 PM CDT (21:42 UTC)
Expired: Jul 17, 2001, 5:15 PM CDT
In force: 33 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Kidder County, ND

The radar

The Bismarck radar (KBIS), 91 km from the middle of the area, began a volume at 21:43 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.

What was reported inside it

Time	Report	Where	Remark
Jul 17, 5:15 PM CDT	Tornado F2	Lake Williams, ND	Tornado reported to be 1/2 mile wide at times. The tornado remained in open country before entering into Stutsman county. Damage was contained to metal and double poled high power line towers. A farmstead in the path of the tornado sustained $200,000 in damage

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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 17, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.7 hours before the alert went out and 88 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: 1827 J/kg
Mixed-layer CIN: -176 J/kg
Mixed-layer LCL: 1544 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 172144
TORBIS

NDC043-172215-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
442 PM CDT TUE JUL 17 2001

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN KIDDER COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 515 PM CDT

* AT 442 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER ROBINSON...OR ABOUT 53 MILES NORTHEAST OF BISMARCK...
  MOVING EAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LAKE WILLIAMS AT 505 PM CDT
  PETTIBONE AT 515 PM CDT

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING FOR 
KIDDER COUNTY. THE SEVERE THUNDERSTORM WARNING REMA,INS IN EFFECT 
UNTIL 515 PM CDT.

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

LAT...LON 4732 9991 4711 9995 4705 9951 4733 9950

JV

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 8:02 PM CDT	Severe Thunderstorm Warning	BIS	Ward	58 min
Jul 17, 4:00 PM CDT	Severe Thunderstorm Warning	BIS	Morton	60 min
Jul 17, 4:11 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, Wells	64 min
Jul 17, 4:58 PM CDT	Severe Thunderstorm Warning	BIS	Morton	62 min
Jul 17, 5:16 PM CDT	Tornado Warning	BIS	Kidder, Stutsman	44 min
Jul 17, 5:42 PM CDT	Severe Thunderstorm Warning	BIS	Wells	63 min
Jul 17, 5:48 PM CDT	Tornado Warning	BIS	Morton	27 min
Jul 17, 5:58 PM CDT	Tornado Warning	BIS	Stutsman	47 min
Jul 17, 6:45 PM CDT	Tornado Warning	BIS	Stutsman	45 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; radar from the NEXRAD Level II archive.