Alert archive / North Dakota / Tornado Warnings in 1998

Tornado Warning 15, NWS Bismarck, ND

June 24, 1998McIntosh County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 24, 1998, 7:46 PM CDT for McIntosh County, North Dakota. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 24, 1998, 7:46 PM CDT (00:46 UTC)
Expired
Jun 24, 1998, 8:15 PM CDT
In force
29 min
Issued by
NWS Bismarck, ND
Area
Whole counties

County McIntosh County, ND

The radar

The Aberdeen radar (KABR), 108 km from the middle of the area, began a volume at 00:49 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 0.8 hours before the alert went out and 121 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 00:00Z on 1998-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 956 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 1998-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.193958Sfc1 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
956 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2014 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KBIS 250045 RRA
TORBIS
NDC051-250115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
746 PM CDT WED JUN 24 1998

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

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

* UNTIL 815 PM CDT

* AT 740 PM CDT... AREA LAW ENFORCEMENT INDICATED A TORNADO NEAR
  ASHLEY. THE STORM PRODUCING THE TORNADO WAS STATIONARY.


* THE TORNADO IS EXPECTED TO BE NEAR...
  ASHLEY
  VENTURIA AT 750 PM CDT

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR!
FLOODING RAIN IS ALSO POSSIBLE WITH THIS STORM DUE TO ITS SLOW
MOVEMENT

DH


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 7:17 PM CDTTornado WarningBISMcIntosh28 min
Jun 24, 8:20 PM CDTSevere Thunderstorm WarningBISMcIntosh40 min
Jun 24, 9:06 PM CDTSevere Thunderstorm WarningBISMcIntosh24 min
Jun 24, 9:43 PM CDTSevere Thunderstorm WarningBISMcIntosh32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.