Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 1679
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2011, 2:45 PM MDT for 5 states. It was in force for 90 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2011, 2:45 PM MDT (20:45 UTC)
- Expired
- Jul 21, 2011, 4:15 PM MDT
- In force
- 90 min
- Issued by
- the Storm Prediction Center
All 78 counties
Kit Carson County, CO, Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Adair County, IA, Adams County, IA, Cass County, IA, Clarke County, IA, Dallas County, IA, Fremont County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Mahaska County, IA, Marion County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Polk County, IA, Poweshiek County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Warren County, IA, Brown County, KS, Cheyenne County, KS, Clay County, KS, Cloud County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Jewell County, KS, Lincoln County, KS, Logan County, KS, Marshall County, KS, Mitchell County, KS, Nemaha County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Pottawatomie County, KS, Rawlins County, KS, Republic County, KS, Riley County, KS, Rooks County, KS, Russell County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Washington County, KS, Wichita County, KS, Atchison County, MO, Holt County, MO, Nodaway County, MO, Arthur County, NE, Cass County, NE, Chase County, NE, Deuel County, NE, Dundy County, NE, Gage County, NE, Garden County, NE, Jefferson County, NE, Johnson County, NE, Keith County, NE, Morrill County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Perkins County, NE, Richardson County, NE, Thayer County, NE
The radar
The Grand Island radar (KUEX), 21 km from the middle of the area, began a volume at 20:45 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, 8.8 hours before the alert went out and 181 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
- 1483 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 1129 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 1:14 AM MDT | Mesoscale Discussion | SPC | Monona | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Iowa, 2011Mesoscale Discussions in Nebraska, 2011Every mesoscale discussion in 2011
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.