Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 1609

July 10, 2004Yuma County, Colorado; 10 counties in Kansas; 8 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2004, 8:41 PM MDT for Yuma County, Colorado; 10 counties in Kansas; 8 counties in Nebraska. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jul 10, 2004, 8:41 PM MDT (02:41 UTC)
Expired: Jul 10, 2004, 11:15 PM MDT
In force: 3 hr
Issued by: the Storm Prediction Center

Counties Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Graham County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Chase County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 87 km from the middle of the area, began a volume at 02:40 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.7 hours before the alert went out and 134 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: 1649 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1674 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 21 m²/s²
0-3 km storm-relative helicity: 51 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 4:19 PM MDT	Mesoscale Discussion	SPC	Atchison, Doniphan	116 min
Jul 11, 9:33 AM MDT	Mesoscale Discussion	SPC	Burt, Cass, Dodge, Douglas, Johnson, Lancaster and 6 more	117 min
Jul 11, 10:55 AM MDT	Severe Thunderstorm Watch	SPC	Cass, Douglas, Johnson, Nemaha, Otoe, Pawnee and 3 more	6 hr
Jul 11, 1:04 PM MDT	Mesoscale Discussion	SPC	Burt, Cass, Dodge, Douglas, Johnson, Lancaster and 6 more	116 min
Jul 11, 1:58 PM MDT	Mesoscale Discussion	SPC	Arthur, Box Butte, Cherry, Cheyenne, Dawes, Deuel and 6 more	2 hr

Nearby

Mesoscale Discussions in Kansas, 2004 Mesoscale Discussions in Nebraska, 2004 Mesoscale Discussions in Colorado, 2004 Every mesoscale discussion 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.