Alert archive / Colorado / Mesoscale Discussions in 2013

Mesoscale Discussion 1114

June 17, 20134 states

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2013, 5:09 PM MDT for 4 states. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued: Jun 17, 2013, 5:09 PM MDT (23:09 UTC)
Expired: Jun 17, 2013, 6:15 PM MDT
In force: 66 min
Issued by: the Storm Prediction Center

All 33 counties

Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Prowers County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Greeley County, KS, Hamilton County, KS, Morton County, KS, Stanton County, KS, Wallace County, KS, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Deuel County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Goshen County, WY, Laramie County, WY

The radar

The Denver radar (KFTG), 123 km from the middle of the area, began a volume at 23:09 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

Denver, CO (KDNR), launched 12:00Z, 11.2 hours before the alert went out and 11 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: 2430 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: -29 m²/s²
0-3 km storm-relative helicity: -12 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
Jun 17, 1:06 PM MDT	Mesoscale Discussion	SPC	Logan, Phillips, Sedgwick, Weld	84 min
Jun 17, 1:38 PM MDT	Mesoscale Discussion	SPC	Bent, Cheyenne, Crowley, Elbert, Kiowa, Kit Carson and 6 more	97 min
Jun 17, 2:21 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Arapahoe, Baca, Bent, Boulder, Broomfield and 20 more	9 hr
Jun 16, 7:16 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 21 more	59 min
Jun 16, 7:40 PM MDT	Severe Thunderstorm Watch	SPC	Barber, Barton, Butler, Chase, Chautauqua, Clark and 35 more	5 hr
Jun 16, 9:58 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clark, Comanche, Edwards, Ellis and 24 more	62 min
Jun 16, 11:48 PM MDT	Mesoscale Discussion	SPC	Butler, Chautauqua, Cowley, Elk, Greenwood, Sedgwick and 1 more	117 min
Jun 17, 12:02 AM MDT	Severe Thunderstorm Watch	SPC	Allen, Butler, Chase, Chautauqua, Cowley, Elk and 6 more	6 hr

Nearby

Mesoscale Discussions in Colorado, 2013 Mesoscale Discussions in Nebraska, 2013 Mesoscale Discussions in Kansas, 2013 Every mesoscale discussion in 2013

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.