Alert archive / Kansas / Mesoscale Discussions in 2018
Mesoscale Discussion 1412
The Storm Prediction Center issued this mesoscale discussion at Sep 2, 2018, 3:20 PM CDT for 25 counties in Kansas. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Sep 2, 2018, 3:20 PM CDT (20:20 UTC)
- Expired
- Sep 2, 2018, 5:15 PM CDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 25 counties
Barton County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Jackson County, KS, Jewell County, KS, Lincoln County, KS, Marshall County, KS, Mitchell County, KS, Nemaha County, KS, Ness County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Trego County, KS, Washington County, KS
The radar
The Grand Island radar (KUEX), 144 km from the middle of the area, began a volume at 20:21 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, 8.3 hours before the alert went out and 189 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
- 77 J/kg
- Mixed-layer CIN
- -103 J/kg
- Mixed-layer LCL
- 1257 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
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 1, 9:39 PM CDT | Mesoscale Discussion | SPC | Cloud, Ellis, Jewell, Lincoln, Marshall, Mitchell and 5 more | 96 min |
| Sep 2, 4:58 PM CDT | Severe Thunderstorm Watch | SPC | Barton, Clay, Cloud, Dickinson, Edwards, Ellis and 25 more | 4 hr |
Nearby
Mesoscale Discussions in Kansas, 2018Every mesoscale discussion in 2018
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.