Alert archive / North Dakota / Tornado Warnings in 1990

Tornado Warning 2, NWS Bismarck, ND

June 26, 1990Mountrail County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 26, 1990, 10:28 PM CDT for Mountrail County, North Dakota. It was in force for 32 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 26, 1990, 10:28 PM CDT (03:28 UTC)
Expired: Jun 26, 1990, 11:00 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Whole counties

County Mountrail County, ND

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 26, 10:55 PM CDT	Tornado F0	Mountrail, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 3.5 hours before the alert went out and 202 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: 2715 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 1967 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 266 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 18.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 8:41 PM CDT	Severe Thunderstorm Warning	BIS	Williams	64 min
Jun 26, 9:21 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	39 min
Jun 26, 10:15 PM CDT	Severe Thunderstorm Warning	BIS	Dunn	60 min
Jun 26, 10:54 PM CDT	Severe Thunderstorm Warning	BIS	McLean	66 min
Jun 26, 11:31 PM CDT	Tornado Warning	BIS	Mercer	44 min
Jun 27, 12:07 AM CDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	68 min
Jun 27, 2:43 AM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	32 min

Nearby

Tornado Warnings in North Dakota, 1990 Every tornado warning in 1990 Tornadoes in 1990

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.