Alert archive / Nebraska / Mesoscale Discussions in 2013

Mesoscale Discussion 1179

June 22, 20137 counties in Colorado; 16 counties in Kansas; 53 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2013, 6:47 PM MDT for 7 counties in Colorado; 16 counties in Kansas; 53 counties in Nebraska. It was in force for 88 min.

The area

The outline as issued.

The facts

Issued
Jun 22, 2013, 6:47 PM MDT (00:47 UTC)
Expired
Jun 22, 2013, 8:15 PM MDT
In force
88 min
Issued by
the Storm Prediction Center
All 76 counties

Cheyenne County, CO, Kit Carson County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Adams County, NE, Arthur County, NE, Banner County, NE, Blaine County, NE, Boone County, NE, Box Butte County, NE, Brown County, NE, Buffalo County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Custer County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Garden County, NE, Garfield County, NE, Gosper County, NE, Grant County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Hooker County, NE, Howard County, NE, Kearney County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Merrick County, NE, Morrill County, NE, Nance County, NE, Perkins County, NE, Phelps County, NE, Platte County, NE, Red Willow County, NE, Rock County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 107 km from the middle of the area, began a volume at 00:49 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 81 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, N. Platte/Lee Bi, NE at 00:00Z on 2013-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3186 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2013-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
3186 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
348 m²/s²
Significant tornado parameter
2.7
Supercell composite
28.0

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 23, 3:48 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Cheyenne, Crowley, Denver and 13 more87 min
Jun 23, 4:12 PM MDTMesoscale DiscussionSPCBaca93 min
Jun 23, 4:40 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 16 more7 hr
Jun 22, 9:34 PM MDTMesoscale DiscussionSPCNorton86 min
Jun 23, 2:25 PM MDTMesoscale DiscussionSPCClay, Cloud, Ellis, Jewell, Lincoln, Mitchell and 8 more2 hr
Jun 23, 5:50 PM MDTMesoscale DiscussionSPCBrown, Clay, Cloud, Decatur, Ellis, Gove and 22 more85 min
Jun 22, 6:42 PM MDTSevere Thunderstorm WatchSPCBoyd, Brown, Cherry, Holt, Keya Paha, Rock and 1 more6 hr
Jun 22, 7:27 PM MDTMesoscale DiscussionSPCBurt, Cedar, Cuming, Dakota, Dixon, Knox and 3 more63 min
Jun 22, 8:21 PM MDTSevere Thunderstorm WatchSPCDakota, Dixon6 hr
Jun 22, 10:48 PM MDTMesoscale DiscussionSPCBoyd, Cedar, Dakota, Dixon, Knox87 min

Nearby

Mesoscale Discussions in Nebraska, 2013Mesoscale Discussions in Kansas, 2013Mesoscale Discussions in Colorado, 2013Every 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.