Alert archive / Nebraska / Mesoscale Discussions in 2014

Mesoscale Discussion 385

April 23, 201417 counties in Kansas; 27 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2014, 2:34 PM CDT for 17 counties in Kansas; 27 counties in Nebraska. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2014, 2:34 PM CDT (19:34 UTC)
Expired
Apr 23, 2014, 5:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
95%
All 44 counties

Barton County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Jewell County, KS, Lane County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Sheridan County, KS, Smith County, KS, Trego County, KS, Adams County, NE, Boone County, NE, Buffalo County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Platte County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, Wheeler County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 59 km from the middle of the area, began a volume at 19:37 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.6 hours before the alert went out and 144 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 12:00Z on 2014-04-23Temperature 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 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 12:00Z on 2014-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 621 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
1736 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
621 m²/s²
0-3 km storm-relative helicity
594 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
Apr 23, 2:37 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Finney, Ford, Gray and 5 more113 min
Apr 23, 3:04 PM CDTSevere Thunderstorm WatchSPCBarton, Cloud, Decatur, Ellis, Gove, Graham and 19 more8 hr
Apr 23, 3:32 PM CDTMesoscale DiscussionSPCCheyenne2 hr
Apr 23, 3:44 PM CDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 9 more7 hr
Apr 23, 6:16 PM CDTMesoscale DiscussionSPCBarton, Cloud, Decatur, Ellis, Gove, Graham and 18 more59 min
Apr 23, 6:54 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 9 more96 min

Nearby

Mesoscale Discussions in Nebraska, 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.