Alert archive / North Dakota / Tornado Warnings in 2000

Tornado Warning 15, NWS Bismarck, ND

July 4, 2000LaMoure County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 4, 2000, 9:25 PM CDT for LaMoure County, North Dakota. It was in force for 35 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 4, 2000, 9:25 PM CDT (02:25 UTC)
Expired: Jul 4, 2000, 10:00 PM CDT
In force: 35 min
Issued by: NWS Bismarck, ND
Area: Whole counties; the outline is the Mesonet’s reconstruction

County LaMoure County, ND

The radar

The Aberdeen radar (KABR), 128 km from the middle of the area, began a volume at 02:29 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 4, 9:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.4 hours before the alert went out and 141 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: 1565 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 683 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 050225
TORBIS

NDC045-050300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
925 PM CDT TUE JUL 4 2000

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN LAMOURE COUNTY IN SOUTHEAST NORTH DAKOTA

* UNTIL 1000 PM CDT

* AT 925 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 10 MILES NORTHWEST OF JUD...OR ABOUT 25 MILES SOUTHWEST OF
  JAMESTOWN...MOVING SOUTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  JUD AT 940 PM CDT
  NORTONVILLE AT 955 PM CDT

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4663 9891 4658 9903 4639 9888 4659 9867

RSL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:29 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	46 min
Jul 4, 8:15 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	60 min
Jul 4, 9:04 PM CDT	Severe Thunderstorm Warning	BIS	LaMoure	56 min
Jul 4, 9:09 PM CDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	66 min
Jul 4, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Stutsman	60 min
Jul 4, 9:52 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Stark	53 min
Jul 4, 10:06 PM CDT	Tornado Warning	BIS	Dickey, LaMoure	54 min
Jul 4, 10:14 PM CDT	Severe Thunderstorm Warning	BIS	Billings	46 min
Jul 4, 10:50 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger	40 min
Jul 4, 11:07 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	53 min
Jul 5, 12:02 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	43 min

Nearby

Tornado Warnings in North Dakota, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.