Alert archive / North Dakota / Tornado Warnings in 2003

Tornado Warning 10, NWS Bismarck, ND

July 4, 2003Emmons County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jul 4, 2003, 1:11 AM CDT for Emmons County, North Dakota. It was in force for 34 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: Jul 4, 2003, 1:11 AM CDT (06:11 UTC)
Expired: Jul 4, 2003, 1:45 AM CDT
In force: 34 min
Issued by: NWS Bismarck, ND
Area: Counties, with a storm outline in the text

County Emmons County, ND

The radar

The Bismarck radar (KBIS), 96 km from the middle of the area, began a volume at 06:13 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, 6.2 hours before the alert went out and 93 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: 662 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 2037 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 252 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KBIS 040611
TORBIS
NDC029-040645-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE BISMARCK ND
110 AM CDT FRI JUL 4 2003

THE NATIONAL WEATHER SERVICE IN BISMARCK HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN EMMONS COUNTY IN SOUTH CENTRAL NORTH DAKOTA

* UNTIL 145 AM CDT

* AT 110 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER HAGUE...OR ABOUT 61 MILES SOUTHEAST OF BISMARCK...
  MOVING SOUTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  HAGUE AT 115 AM CDT

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR WINDOWLESS ROOM SUCH AS A BATHROOM OR CLOSET. PROTECT YOUR
HEAD WITH BLANKETS OR PILLOWS.

LAT...LON 4617 10006 4597 10018 4595 9989 4613 9991

$$
LEBLANG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 7:28 PM CDT	Severe Thunderstorm Warning	BIS	Oliver	62 min
Jul 3, 7:58 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	62 min
Jul 3, 8:28 PM CDT	Severe Thunderstorm Warning	BIS	Emmons	62 min
Jul 3, 8:52 PM CDT	Tornado Warning	BIS	Emmons	23 min
Jul 3, 8:55 PM CDT	Severe Thunderstorm Warning	BIS	Logan	65 min
Jul 3, 8:58 PM CDT	Severe Thunderstorm Warning	BIS	Kidder	62 min
Jul 3, 9:30 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	60 min
Jul 3, 10:05 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	55 min
Jul 4, 12:13 AM CDT	Severe Thunderstorm Warning	BIS	Sioux	47 min
Jul 4, 12:40 AM CDT	Severe Thunderstorm Warning	BIS	Emmons	65 min
Jul 4, 1:22 AM CDT	Tornado Warning	BIS	McIntosh	23 min
Jul 4, 1:46 AM CDT	Severe Thunderstorm Warning	BIS	McIntosh	44 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.