Alert archive / North Dakota / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 636

July 14, 20045 counties in Montana; 21 counties in North Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 14, 2004, 5:40 PM MDT for 5 counties in Montana; 21 counties in North Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 14, 2004, 5:40 PM MDT (23:40 UTC)
Expired: Jul 15, 2004, 12:00 AM MDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 26 counties

Daniels County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Burke County, ND, Divide County, ND, Dunn County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND

Warnings issued inside it

20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 14, 6:01 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	44 min
Jul 14, 6:20 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley	55 min
Jul 14, 6:46 PM MDT	Severe Thunderstorm Warning	GGW	Wibaux	34 min
Jul 14, 7:00 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	60 min
Jul 14, 7:07 PM MDT	Severe Thunderstorm Warning	BIS	Slope	53 min
Jul 14, 7:16 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley	59 min
Jul 14, 7:47 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	58 min
Jul 14, 7:54 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	66 min
Jul 14, 8:03 PM MDT	Severe Thunderstorm Warning	BIS	Slope	27 min
Jul 14, 8:06 PM MDT	Severe Thunderstorm Warning	BIS	Divide	59 min
Jul 14, 8:10 PM MDT	Tornado Warning	GGW	Sheridan	50 min
Jul 14, 8:29 PM MDT	Tornado Warning	BIS	Bowman	31 min
Jul 14, 8:59 PM MDT	Severe Thunderstorm Warning	BIS	Bowman	31 min
Jul 14, 9:09 PM MDT	Severe Thunderstorm Warning	GGW	Sheridan	51 min
Jul 14, 9:10 PM MDT	Severe Thunderstorm Warning	BIS	Divide, Williams	65 min
Jul 14, 9:52 PM MDT	Severe Thunderstorm Warning	BIS	Williams	63 min
Jul 14, 10:15 PM MDT	Severe Thunderstorm Warning	BIS	Dunn	60 min
Jul 14, 10:52 PM MDT	Severe Thunderstorm Warning	BIS	Mountrail	53 min
Jul 14, 11:12 PM MDT	Severe Thunderstorm Warning	BIS	Dunn	33 min
Jul 14, 11:17 PM MDT	Severe Thunderstorm Warning	BIS	Ward	58 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 11.7 hours before the alert went out and 305 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: 194 J/kg
Mixed-layer CIN: -500 J/kg
Mixed-layer LCL: 1778 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 14, 4:35 PM MDT	Severe Thunderstorm Watch	SPC	Carter, Powder River	5 hr
Jul 14, 5:17 PM MDT	Mesoscale Discussion	SPC	Daniels, Dawson, Fallon, Richland, Roosevelt, Sheridan and 1 more	58 min

Nearby

Severe Thunderstorm Watches in North Dakota, 2004 Severe Thunderstorm Watches in Montana, 2004 Every severe thunderstorm watch 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.