Alert archive / Nebraska / Mesoscale Discussions in 2016
Mesoscale Discussion 1697
The Storm Prediction Center issued this mesoscale discussion at Sep 15, 2016, 9:23 PM CDT for 7 counties in Kansas; 27 counties in Nebraska. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 15, 2016, 9:23 PM CDT (02:23 UTC)
- Expired
- Sep 15, 2016, 11:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 34 counties
Cloud County, KS, Jewell County, KS, Marshall County, KS, Mitchell County, KS, Nemaha County, KS, Republic County, KS, Washington County, KS, Butler County, NE, Cass County, NE, Clay County, NE, Colfax County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Gage County, NE, Hamilton County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Merrick County, NE, Nemaha County, NE, Nuckolls County, NE, Otoe County, NE, Pawnee County, NE, Platte County, NE, Polk County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Thayer County, NE, Washington County, NE, York County, NE
The radar
The Grand Island radar (KUEX), 117 km from the middle of the area, began a volume at 02:27 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
Omaha, NE (KOAX), launched 00:00Z, 2.4 hours before the alert went out and 121 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.
- Mixed-layer CAPE
- 2247 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1154 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 153 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 17.1
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 7:48 PM CDT | Mesoscale Discussion | SPC | Cloud, Decatur, Graham, Jewell, Mitchell, Norton and 8 more | 117 min |
| Sep 15, 7:17 PM CDT | Mesoscale Discussion | SPC | Burt, Colfax, Cuming, Dodge, Platte, Stanton and 2 more | 88 min |
Nearby
Mesoscale Discussions in Nebraska, 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.