Alert archive / Colorado / Mesoscale Discussions in 2014

Mesoscale Discussion 840

June 5, 201422 counties in Colorado; Colfax County, Union County, New Mexico; Cimarron County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2014, 2:25 PM MDT for 22 counties in Colorado; Colfax County, Union County, New Mexico; Cimarron County, Oklahoma. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued: Jun 5, 2014, 2:25 PM MDT (20:25 UTC)
Expired: Jun 5, 2014, 4:00 PM MDT
In force: 95 min
Issued by: the Storm Prediction Center
Chance of a watch: 95%

All 25 counties

Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Huerfano County, CO, Kiowa County, CO, Kit Carson County, CO, Las Animas County, CO, Lincoln County, CO, Morgan County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Teller County, CO, Washington County, CO, Colfax County, NM, Union County, NM, Cimarron County, OK

The radar

The Pueblo radar (KPUX), 48 km from the middle of the area, began a volume at 20:26 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 watches that followed

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

Severe Thunderstorm Watch 233Jun 5, 2:45 PM MDT

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 8.4 hours before the alert went out and 148 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: 1571 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -70 m²/s²
0-3 km storm-relative helicity: -17 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 4, 8:09 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Elbert, Kit Carson, Logan, Morgan and 5 more	96 min
Jun 4, 10:50 PM MDT	Mesoscale Discussion	SPC	Cheyenne, Elbert, Kiowa, Kit Carson, Lincoln	85 min
Jun 4, 11:06 PM MDT	Tornado Watch	SPC	Cheyenne, Kiowa, Kit Carson	4 hr
Jun 5, 2:43 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 19 more	7 hr
Jun 4, 8:23 PM MDT	Severe Thunderstorm Watch	SPC	Craig, Nowata, Ottawa, Washington	7 hr
Jun 5, 1:42 AM MDT	Mesoscale Discussion	SPC	Ottawa	93 min
Jun 5, 5:04 AM MDT	Mesoscale Discussion	SPC	Craig, Nowata, Osage, Ottawa, Rogers, Washington	86 min
Jun 5, 5:26 AM MDT	Severe Thunderstorm Watch	SPC	Adair, Cherokee, Craig, Creek, Delaware, Kay and 14 more	6 hr
Jun 5, 6:40 AM MDT	Mesoscale Discussion	SPC	Adair, Cherokee, Craig, Creek, Delaware, Kay and 16 more	2 hr

Nearby

Mesoscale Discussions in Colorado, 2014 Mesoscale Discussions in New Mexico, 2014 Mesoscale Discussions in Oklahoma, 2014 Every mesoscale discussion in 2014

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.