Alert archive / Colorado / Mesoscale Discussions in 2015

Mesoscale Discussion 535

May 7, 20159 counties in Colorado; 7 counties in Kansas; Cimarron County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 7, 2015, 1:47 PM MDT for 9 counties in Colorado; 7 counties in Kansas; Cimarron County, Oklahoma. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: May 7, 2015, 1:47 PM MDT (19:47 UTC)
Expired: May 7, 2015, 3:45 PM MDT
In force: 118 min
Issued by: the Storm Prediction Center
Chance of a watch: 40%

Counties Baca County, CO, Bent County, CO, Crowley County, CO, Huerfano County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Grant County, KS, Hamilton County, KS, Haskell County, KS, Kearny County, KS, Morton County, KS, Stanton County, KS, Stevens County, KS, Cimarron County, OK

The radar

The Pueblo radar (KPUX), 133 km from the middle of the area, began a volume at 19:50 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 140May 7, 2:10 PM MDT

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 7.8 hours before the alert went out and 240 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: 622 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 76 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 7, 2:11 PM MDT	Severe Thunderstorm Watch	SPC	Baca, Bent, Crowley, Elbert, El Paso, Kiowa and 5 more	5 hr
May 7, 5:14 PM MDT	Mesoscale Discussion	SPC	Arapahoe, Baca, Bent, Crowley, Elbert, El Paso and 6 more	2 hr
May 6, 6:40 PM MDT	Mesoscale Discussion	SPC	Allen, Anderson, Atchison, Brown, Butler, Chase and 37 more	65 min
May 6, 7:31 PM MDT	Tornado Watch	SPC	Butler, Chase, Chautauqua, Clay, Cloud, Cowley and 28 more	5 hr
May 6, 8:40 PM MDT	Mesoscale Discussion	SPC	Barton, Butler, Chase, Clay, Cloud, Dickinson and 29 more	95 min
May 6, 10:17 PM MDT	Mesoscale Discussion	SPC	Brown, Butler, Chase, Clay, Cloud, Cowley and 27 more	88 min
May 7, 12:44 PM MDT	Mesoscale Discussion	SPC	Barber, Barton, Clay, Dickinson, Edwards, Ellsworth and 23 more	2 hr
May 6, 7:08 PM MDT	Mesoscale Discussion	SPC	Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 17 more	67 min
May 6, 7:51 PM MDT	Tornado Watch	SPC	Alfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 26 more	5 hr
May 6, 9:53 PM MDT	Mesoscale Discussion	SPC	Alfalfa, Blaine, Caddo, Canadian, Carter, Cleveland and 26 more	2 hr
May 7, 12:16 AM MDT	Severe Thunderstorm Watch	SPC	Cotton, Jefferson, Love, Marshall, Tillman	4 hr
May 7, 3:24 AM MDT	Mesoscale Discussion	SPC	Bryan, Carter, Cotton, Jefferson, Love, Marshall	66 min
May 7, 9:20 AM MDT	Mesoscale Discussion	SPC	Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more	115 min
May 7, 11:52 AM MDT	Mesoscale Discussion	SPC	Bryan, Carter, Comanche, Cotton, Jefferson, Johnston and 5 more	113 min
May 7, 12:10 PM MDT	Severe Thunderstorm Watch	SPC	Caddo, Canadian, Cleveland, Comanche, Cotton, Garvin and 10 more	7 hr
May 7, 2:51 PM MDT	Mesoscale Discussion	SPC	Bryan, Carter, Love, Marshall	114 min
May 7, 3:33 PM MDT	Severe Thunderstorm Watch	SPC	Atoka, Bryan, Carter, Coal, Johnston, Love and 3 more	7 hr
May 7, 5:19 PM MDT	Mesoscale Discussion	SPC	Atoka, Bryan, Carter, Choctaw, Cleveland, Coal and 11 more	86 min

Nearby

Mesoscale Discussions in Colorado, 2015 Mesoscale Discussions in Kansas, 2015 Mesoscale Discussions in Oklahoma, 2015 Every mesoscale discussion in 2015

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.