Alert archive / North Dakota / Tornado Warnings in 1998

Tornado Warning 21, NWS Bismarck, ND

July 6, 1998Ward County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 6, 1998, 4:51 PM CDT for Ward County, North Dakota. It was in force for 49 min. 2 reports 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
Jul 6, 1998, 4:51 PM CDT (21:51 UTC)
Expired
Jul 6, 1998, 5:40 PM CDT
In force
49 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County Ward County, ND

What was reported inside it

TimeReportWhereRemark
Jul 6, 5:20 PM CDTHail 1.75Minot, ND
Jul 6, 5:20 PM CDTHail 1.75Minot, 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, 9.9 hours before the alert went out and 173 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 1998-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 1998-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -146 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
16 J/kg
Mixed-layer CIN
-306 J/kg
Mixed-layer LCL
1386 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
-146 m²/s²
0-3 km storm-relative helicity
34 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.

216 
WFUS1 KBIS 062152 RRA
TORBIS
NDC101-062240-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
451 PM CDT MON JUL 6 1998

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN WARD COUNTY IN NORTH CENTRAL NORTH DAKOTA

* UNTIL 540 PM CDT

* AT 450 PM CDT...SPOTTERS INDICATED A TORNADO 2 MILES NORTH OF
  DOUGLAS...25 MILES SOUTH OF MINOT... MOVING NORTHEAST AT 25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  SAWYER AT 505 PM CDT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

JP MARTIN


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 7:57 PM CDTSevere Thunderstorm WarningBISBurke48 min
Jul 5, 8:16 PM CDTTornado WarningBISBurke34 min
Jul 5, 8:36 PM CDTSevere Thunderstorm WarningBISWard44 min
Jul 5, 9:03 PM CDTSevere Thunderstorm WarningBISMountrail47 min
Jul 5, 9:52 PM CDTSevere Thunderstorm WarningBISDivide, Williams58 min
Jul 5, 10:47 PM CDTSevere Thunderstorm WarningBISMountrail58 min
Jul 5, 10:47 PM CDTTornado WarningBISWilliams28 min
Jul 5, 11:44 PM CDTSevere Thunderstorm WarningBISMountrail46 min
Jul 6, 12:39 AM CDTSevere Thunderstorm WarningBISMountrail, Ward61 min
Jul 6, 3:31 PM CDTSevere Thunderstorm WarningBISMcKenzie64 min
Jul 6, 4:01 PM CDTSevere Thunderstorm WarningBISWard64 min
Jul 6, 5:23 PM CDTSevere Thunderstorm WarningBISEmmons47 min
Jul 6, 5:30 PM CDTSevere Thunderstorm WarningBISBurleigh45 min
Jul 6, 5:45 PM CDTSevere Thunderstorm WarningBISMcLean45 min
Jul 6, 6:00 PM CDTSevere Thunderstorm WarningBISMcKenzie60 min
Jul 6, 6:03 PM CDTSevere Thunderstorm WarningBISRenville32 min
Jul 6, 6:04 PM CDTSevere Thunderstorm WarningBISMcIntosh31 min
Jul 6, 6:20 PM CDTSevere Thunderstorm WarningBISBurleigh, Kidder50 min
Jul 6, 6:22 PM CDTSevere Thunderstorm WarningBISMcLean63 min

Nearby

Tornado Warnings in North Dakota, 1998Every tornado warning in 1998Tornadoes in 1998

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.