Alert archive / North Dakota / Tornado Warnings in 2004

Tornado Warning 27, NWS Bismarck, ND

August 23, 2004Morton County, North Dakota

NWS Bismarck, ND issued this tornado warning at Aug 23, 2004, 6:58 PM CDT for Morton County, North Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 23, 2004, 6:58 PM CDT (23:58 UTC)
Expired: Aug 23, 2004, 7:30 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Morton County, ND

The radar

The Bismarck radar (KBIS), 71 km from the middle of the area, began a volume at 00:00 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
Aug 23, 3:25 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 12.0 hours before the alert went out and 76 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 890 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 169 m²/s²
0-3 km storm-relative helicity: 383 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.

000 
WFUS53 KBIS 232358
TORBIS
NDC059-240030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
658 PM CDT MON AUG 23 2004

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

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

* UNTIL 730 PM CDT

* AT 658 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 7 MILES SOUTHEAST OF GLEN ULLIN...OR ABOUT 47 MILES WEST OF
  BISMARCK...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL NORTHERN MORTON COUNTY AROUND 710 PM CDT

IF IN A MOBILE HOME OR CAMPER...EVEN IF IT IS TIED DOWN...ABANDON IT
FOR THE NEAREST REINFORCED BUILDING. IF NONE IS AVAILABLE...LIE FLAT
IN A NEARBY DITCH. DO NOT STAY IN THE MOBILE HOME.

LAT...LON 4674 10187 4673 10170 4672 10161 4698 10131
      4698 10178

$$
WAA

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 5:15 PM CDT	Severe Thunderstorm Warning	BIS	Adams	60 min
Aug 23, 5:34 PM CDT	Severe Thunderstorm Warning	BIS	Hettinger	56 min
Aug 23, 6:30 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton	60 min
Aug 23, 6:43 PM CDT	Tornado Warning	BIS	Grant	32 min

Nearby

Tornado Warnings in North Dakota, 2004 Every tornado warning in 2004 Tornadoes in 2004

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.