Alert archive / Nebraska / Mesoscale Discussions in 2016

Mesoscale Discussion 1189

July 7, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jul 7, 2016, 1:40 PM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jul 7, 2016, 1:40 PM MDT (19:40 UTC)
Expired
Jul 7, 2016, 3:45 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 41 counties

Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Norton County, KS, Rawlins County, KS, Adams County, NE, Banner County, NE, Buffalo County, NE, Chase County, NE, Cheyenne County, NE, Clay County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Kearney County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Merrick County, NE, Nuckolls County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE, Webster County, NE, York County, NE, Laramie County, WY

The radar

The Goodland radar (KGLD), 145 km from the middle of the area, began a volume at 19:40 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, 7.7 hours before the alert went out and 86 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 2016-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 702 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 2016-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
702 J/kg
Mixed-layer CIN
-408 J/kg
Mixed-layer LCL
1643 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Jul 7, 4:14 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick3 hr
Jul 6, 8:28 PM MDTMesoscale DiscussionSPCNorton2 hr
Jul 6, 8:47 PM MDTSevere Thunderstorm WatchSPCJewell, Mitchell, Osborne, Phillips, Rooks, Smith5 hr
Jul 7, 12:22 AM MDTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Jackson and 11 more83 min
Jul 7, 12:37 AM MDTSevere Thunderstorm WatchSPCAtchison, Brown, Clay, Cloud, Doniphan, Douglas and 15 more6 hr
Jul 7, 1:31 AM MDTMesoscale DiscussionSPCJewell, Mitchell, Norton, Phillips, Republic, Smith89 min
Jul 7, 3:27 AM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 13 more93 min
Jul 7, 4:26 AM MDTMesoscale DiscussionSPCFranklin, Johnson, Linn, Miami, Osage2 hr
Jul 6, 6:38 PM MDTSevere Thunderstorm WatchSPCAntelope, Boone, Burt, Cedar, Colfax, Cuming and 11 more6 hr
Jul 7, 12:50 PM MDTMesoscale DiscussionSPCBurt, Colfax, Cuming, Dodge, Douglas, Sarpy and 3 more115 min
Jul 7, 2:54 PM MDTSevere Thunderstorm WatchSPCBurt, Butler, Cass, Colfax, Cuming, Dakota and 11 more5 hr
Jul 7, 5:30 PM MDTMesoscale DiscussionSPCCass, Otoe, Sarpy2 hr

Nearby

Mesoscale Discussions in Nebraska, 2016Mesoscale Discussions in Colorado, 2016Mesoscale Discussions in Kansas, 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.