Alert archive / Kansas / Mesoscale Discussions in 2017
Mesoscale Discussion 1099
The Storm Prediction Center issued this mesoscale discussion at Jun 20, 2017, 12:59 PM CDT for 22 counties in Kansas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2017, 12:59 PM CDT (17:59 UTC)
- Expired
- Jun 20, 2017, 3:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 22 counties
Barton County, KS, Decatur County, KS, Ellis County, KS, Ellsworth County, KS, Gove County, KS, Graham County, KS, Hodgeman County, KS, Jewell County, KS, Lane County, KS, Lincoln County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Sheridan County, KS, Smith County, KS, Trego County, KS
The radar
The Grand Island radar (KUEX), 142 km from the middle of the area, began a volume at 18:04 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
Dodge City, (KDDC), launched 12:00Z, 6.0 hours before the alert went out and 173 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
- 698 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1238 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 171 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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 |
|---|---|---|---|---|
| Jun 20, 1:52 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Clay, Cloud, Dickinson, Edwards, Ellis and 37 more | 7 hr |
| Jun 20, 3:40 PM CDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Ellsworth, Finney, Ford and 20 more | 2 hr |
| Jun 20, 6:18 PM CDT | Mesoscale Discussion | SPC | Barton, Decatur, Ellis, Ellsworth, Finney, Gove and 26 more | 117 min |
Nearby
Mesoscale Discussions in Kansas, 2017Every mesoscale discussion in 2017
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.