Alert archive / North Dakota / Tornado Warnings in 2003

Tornado Warning 3, NWS Bismarck, ND

June 23, 2003Emmons County, Sioux County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 23, 2003, 4:24 AM CDT for Emmons County, Sioux County, North Dakota. It was in force for 51 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: Jun 23, 2003, 4:24 AM CDT (09:24 UTC)
Expired: Jun 23, 2003, 5:15 AM CDT
In force: 51 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

Counties Emmons County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 51 km from the middle of the area, began a volume at 09:24 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, 9.4 hours before the alert went out and 49 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: 167 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1302 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 230924
TORBIS
NDC029-085-231015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
424 AM CDT MON JUN 23 2003

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN EMMONS COUNTY IN SOUTH CENTRAL NORTH DAKOTA
  NORTHEASTERN SIOUX COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 515 AM CDT(415 AM MDT)

* AT 424 AM CDT(324 AM MDT)...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED A TORNADO 6 MILES SOUTH OF CANNON BALL...OR ABOUT 40
  MILES SOUTH OF BISMARCK...MOVING NORTHEAST AT 40 MPH.

* THE TORNADO WILL BE NEAR...
  HAZELTON AT 445 AM CDT

LAT...LON 4633 10068 4611 10065 4640 10000 4662 10028

$$
WA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 7:37 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	38 min
Jun 23, 3:59 AM CDT	Severe Thunderstorm Warning	BIS	Sioux	46 min
Jun 23, 4:10 AM CDT	Severe Thunderstorm Warning	BIS	Emmons	65 min
Jun 23, 6:15 AM CDT	Severe Thunderstorm Warning	BIS	Stutsman	45 min

Nearby

Tornado Warnings in North Dakota, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.