Alert archive / Nebraska / Mesoscale Discussions in 2014

Mesoscale Discussion 1165

June 26, 2014Phillips County, Sedgwick County, Yuma County, Colorado; Cheyenne County, Kansas; 16 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2014, 8:00 PM MDT for Phillips County, Sedgwick County, Yuma County, Colorado; Cheyenne County, Kansas; 16 counties in Nebraska. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Jun 26, 2014, 8:00 PM MDT (02:00 UTC)
Expired
Jun 26, 2014, 9:30 PM MDT
In force
90 min
Issued by
the Storm Prediction Center
Chance of a watch
40%

Counties Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Keith County, NE, Kimball County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE

The radar

The Cheyenne radar (KCYS), 170 km from the middle of the area, began a volume at 02:03 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 00:00Z, 2.0 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2014-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 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 00:00Z on 2014-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -63 square meters per square second.193958Sfc1 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
18 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
3908 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-63 m²/s²
0-3 km storm-relative helicity
259 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.

IssuedProductOfficeCountiesLasted
Jun 26, 9:39 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson, Yuma3 hr
Jun 26, 10:55 PM MDTMesoscale DiscussionSPCKit Carson, Phillips, Yuma95 min
Jun 27, 12:05 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more115 min
Jun 27, 12:48 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Bent, Cheyenne, Elbert, Kiowa and 10 more6 hr
Jun 27, 2:19 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick86 min
Jun 27, 2:47 PM MDTTornado WatchSPCCheyenne, Kit Carson, Yuma6 hr
Jun 27, 5:06 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick84 min
Jun 27, 5:47 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Crowley, Elbert, Kiowa and 8 more58 min
Jun 27, 12:37 AM MDTMesoscale DiscussionSPCDecatur, Norton, Rawlins23 min
Jun 27, 3:57 PM MDTMesoscale DiscussionSPCBlaine, Brown, Cherry, Custer, Dawes, Garfield and 10 more93 min
Jun 27, 4:17 PM MDTSevere Thunderstorm WatchSPCArthur, Cherry, Garden, Grant, Hooker, Logan and 3 more6 hr

Nearby

Mesoscale Discussions in Nebraska, 2014Mesoscale Discussions in Colorado, 2014Mesoscale Discussions in Kansas, 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.