Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 674

May 12, 20047 counties in Colorado; 17 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at May 12, 2004, 5:14 PM MDT for 7 counties in Colorado; 17 counties in Kansas. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued: May 12, 2004, 5:14 PM MDT (23:14 UTC)
Expired: May 12, 2004, 6:15 PM MDT
In force: 61 min
Issued by: the Storm Prediction Center

All 24 counties

Bent County, CO, Cheyenne County, CO, Crowley County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Prowers County, CO, Cheyenne County, KS, Finney County, KS, Gove County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 195May 12, 5:35 PM MDT

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.2 hours before the alert went out and 186 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: 1429 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 64 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.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 11, 7:02 PM MDT	Mesoscale Discussion	SPC	Phillips, Sedgwick	118 min
May 12, 5:35 PM MDT	Severe Thunderstorm Watch	SPC	Cheyenne, Kiowa, Kit Carson, Prowers	5 hr
May 12, 2:23 PM MDT	Mesoscale Discussion	SPC	Barber, Butler, Chase, Clark, Clay, Comanche and 34 more	2 hr
May 12, 3:00 PM MDT	Tornado Watch	SPC	Barber, Barton, Clark, Comanche, Dickinson, Edwards and 17 more	6 hr

Nearby

Mesoscale Discussions in Kansas, 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.