Alert archive / Colorado / Mesoscale Discussions in 2014

Mesoscale Discussion 1149

June 25, 20144 states

The Storm Prediction Center issued this mesoscale discussion at Jun 25, 2014, 1:28 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 25, 2014, 1:28 PM MDT (19:28 UTC)
Expired
Jun 25, 2014, 3:30 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
60%
All 47 counties

Adams County, CO, Alamosa County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Boulder County, CO, Broomfield County, CO, Cheyenne County, CO, Clear Creek County, CO, Costilla County, CO, Crowley County, CO, Custer County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Fremont County, CO, Gilpin County, CO, Grand County, CO, Huerfano County, CO, Jackson County, CO, Jefferson County, CO, Kiowa County, CO, Kit Carson County, CO, Larimer County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Park County, CO, Phillips County, CO, Prowers County, CO, Pueblo County, CO, Sedgwick County, CO, Teller County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Colfax County, NM, Harding County, NM, Mora County, NM, Taos County, NM, Union County, NM, Cimarron County, OK, Dallam County, TX, Hartley County, TX

The radar

The Pueblo radar (KPUX), 30 km from the middle of the area, began a volume at 19:30 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.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 7.5 hours before the alert went out and 198 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2014-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 687 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2014-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
687 J/kg
Mixed-layer CIN
-198 J/kg
Mixed-layer LCL
1225 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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.

IssuedProductOfficeCountiesLasted
Jun 24, 7:13 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Crowley, Elbert, Las Animas, Lincoln and 4 more92 min
Jun 25, 2:23 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 19 more7 hr
Jun 25, 5:51 PM MDTMesoscale DiscussionSPCBent, Cheyenne, Crowley, Kiowa, Kit Carson, Lincoln and 8 more84 min
Jun 25, 11:28 AM MDTMesoscale DiscussionSPCChaves, Eddy, Lea2 hr
Jun 25, 4:41 PM MDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Canadian, Carter, Cleveland and 20 more3 hr

Nearby

Mesoscale Discussions in Colorado, 2014Mesoscale Discussions in New Mexico, 2014Mesoscale Discussions in Texas, 2014Every 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.