Alert archive / Kansas / Mesoscale Discussions in 2017
Mesoscale Discussion 1584
The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2017, 5:13 AM CDT for 22 counties in Kansas; Jefferson County, Thayer County, Nebraska. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2017, 5:13 AM CDT (10:13 UTC)
- Expired
- Aug 27, 2017, 6:15 AM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 24 counties
Barton County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellsworth County, KS, Geary County, KS, Jewell County, KS, Lincoln County, KS, Marion County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Washington County, KS, Jefferson County, NE, Thayer County, NE
The radar
The Grand Island radar (KUEX), 141 km from the middle of the area, began a volume at 10:16 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, 10.2 hours before the alert went out and 278 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
- 2601 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 975 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 7.5
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 |
|---|---|---|---|---|
| Aug 27, 1:57 PM CDT | Mesoscale Discussion | SPC | Clark, Comanche, Finney, Ford, Grant, Gray and 7 more | 3 hr |
| Aug 27, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | Clark, Comanche, Edwards, Finney, Ford, Grant and 9 more | 8 hr |
| Aug 26, 7:40 PM CDT | Mesoscale Discussion | SPC | Arthur, Blaine, Brown, Cherry, Custer, Dawson and 13 more | 2 hr |
| Aug 27, 1:15 AM CDT | Mesoscale Discussion | SPC | Blaine, Cherry, Custer, Hooker, Logan, McPherson and 1 more | 60 min |
Nearby
Mesoscale Discussions in Kansas, 2017Mesoscale Discussions in Nebraska, 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.