Alert archive / Kansas / Mesoscale Discussions in 2018
Mesoscale Discussion 1402
The Storm Prediction Center issued this mesoscale discussion at Sep 1, 2018, 2:45 PM CDT for 22 counties in Kansas; 8 counties in Nebraska. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2018, 2:45 PM CDT (19:45 UTC)
- Expired
- Sep 1, 2018, 4:45 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 30 counties
Barton County, KS, Cloud County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Jewell County, KS, Lane County, KS, Lincoln County, KS, Mitchell County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Sheridan County, KS, Smith County, KS, Trego County, KS, Adams County, NE, Franklin County, NE, Furnas County, NE, Harlan County, NE, Kearney County, NE, Nuckolls County, NE, Thayer County, NE, Webster County, NE
The radar
The Grand Island radar (KUEX), 133 km from the middle of the area, began a volume at 19:48 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, 7.8 hours before the alert went out and 182 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3003 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 4:47 PM CDT | Severe Thunderstorm Watch | SPC | Cloud, Ellis, Jewell, Lincoln, Marshall, Mitchell and 7 more | 6 hr |
| Sep 1, 5:37 PM CDT | Mesoscale Discussion | SPC | Cheyenne | 113 min |
| Sep 1, 6:38 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Ellis, Jewell, Lincoln, Marshall and 6 more | 2 hr |
| Aug 31, 8:47 PM CDT | Mesoscale Discussion | SPC | Burt, Butler, Cass, Dodge, Douglas, Gage and 10 more | 118 min |
| Sep 1, 2:30 AM CDT | Mesoscale Discussion | SPC | Butler, Colfax, Dodge, Hamilton, Merrick, Nance and 3 more | 90 min |
| Sep 1, 6:34 PM CDT | Mesoscale Discussion | SPC | Burt, Cass, Douglas, Sarpy, Washington | 56 min |
Nearby
Mesoscale Discussions in Kansas, 2018Mesoscale Discussions in Nebraska, 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.