Alert archive / Nebraska / Mesoscale Discussions in 2016

Mesoscale Discussion 383

April 15, 20165 counties in Colorado; 10 counties in Kansas; 14 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 15, 2016, 1:07 PM MDT for 5 counties in Colorado; 10 counties in Kansas; 14 counties in Nebraska. It was in force for 53 min.

The area

The outline as issued.

The facts

Issued
Apr 15, 2016, 1:07 PM MDT (19:07 UTC)
Expired
Apr 15, 2016, 2:00 PM MDT
In force
53 min
Issued by
the Storm Prediction Center
Chance of a watch
80%
All 29 counties

Cheyenne County, CO, Kit Carson County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Greeley County, KS, Logan County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Chase County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 33 km from the middle of the area, began a volume at 19:09 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, 7.1 hours before the alert went out and 131 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 2016-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2016-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1499 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 15, 1:25 PM MDTMesoscale DiscussionSPCBoulder, Clear Creek, Gilpin, Grand, Jackson, Larimer and 2 more6 hr
Apr 15, 1:38 PM MDTMesoscale DiscussionSPCBaca, Prowers2 hr
Apr 15, 1:51 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson, Phillips, Sedgwick, Yuma7 hr
Apr 15, 1:57 PM MDTTornado WatchSPCBaca, Bent, Kiowa, Prowers7 hr
Apr 15, 4:47 PM MDTMesoscale DiscussionSPCKit Carson, Yuma88 min
Apr 15, 5:51 PM MDTMesoscale DiscussionSPCBaca, Prowers114 min

Nearby

Mesoscale Discussions in Nebraska, 2016Mesoscale Discussions in Kansas, 2016Mesoscale Discussions in Colorado, 2016Every mesoscale discussion in 2016

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.