Alert archive / Nebraska / Mesoscale Discussions in 2015

Mesoscale Discussion 885

June 4, 20159 counties in Kansas; 23 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2015, 12:26 PM CDT for 9 counties in Kansas; 23 counties in Nebraska. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Jun 4, 2015, 12:26 PM CDT (17:26 UTC)
Expired
Jun 4, 2015, 2:00 PM CDT
In force
94 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 32 counties

Clay County, KS, Cloud County, KS, Geary County, KS, Marshall County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Wabaunsee County, KS, Washington County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Frontier County, NE, Gage County, NE, Gosper County, NE, Hall County, NE, Hamilton County, NE, Howard County, NE, Jefferson County, NE, Kearney County, NE, Lincoln County, NE, Nuckolls County, NE, Phelps County, NE, Saline County, NE, Sherman County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 8 km from the middle of the area, began a volume at 17:28 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 12:00Z, 5.4 hours before the alert went out and 205 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 2015-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1063 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 12:00Z on 2015-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
1063 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
616 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 3, 8:20 PM CDTMesoscale DiscussionSPCBarton, Clay, Cloud, Decatur, Dickinson, Ellis and 26 more115 min
Jun 3, 11:28 PM CDTMesoscale DiscussionSPCCheyenne, Greeley, Logan, Sherman, Thomas, Wallace and 1 more62 min
Jun 3, 11:59 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Logan and 7 more6 hr
Jun 4, 12:01 AM CDTMesoscale DiscussionSPCClay, Cloud, Graham, Jewell, Marshall, Mitchell and 8 more89 min
Jun 4, 1:56 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Jackson and 8 more94 min
Jun 4, 4:46 AM CDTMesoscale DiscussionSPCJewell, Marshall, Norton, Phillips, Republic, Smith and 1 more89 min
Jun 4, 9:42 AM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Doniphan, Douglas, Franklin and 16 more93 min
Jun 4, 3:28 PM CDTMesoscale DiscussionSPCBarton, Cheyenne, Decatur, Dickinson, Ellis, Ellsworth and 22 more92 min
Jun 4, 4:52 PM CDTMesoscale DiscussionSPCMeade, Seward2 hr
Jun 3, 8:14 PM CDTMesoscale DiscussionSPCBanner, Kimball, Scotts Bluff, Sioux61 min
Jun 3, 9:59 PM CDTSevere Thunderstorm WatchSPCBanner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more5 hr
Jun 4, 2:53 PM CDTMesoscale DiscussionSPCBanner, Kimball, Scotts Bluff97 min
Jun 4, 3:20 PM CDTTornado WatchSPCBanner, Kimball, Scotts Bluff, Sioux8 hr
Jun 4, 6:22 PM CDTMesoscale DiscussionSPCBanner, Kimball, Scotts Bluff, Sioux113 min

Nearby

Mesoscale Discussions in Nebraska, 2015Mesoscale Discussions in Kansas, 2015Every mesoscale discussion in 2015

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.