Alert archive / Kansas / Mesoscale Discussions in 2018
Mesoscale Discussion 1083
The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2018, 11:37 AM CDT for 44 counties in Kansas. It was in force for 113 min.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2018, 11:37 AM CDT (16:37 UTC)
- Expired
- Jul 19, 2018, 1:30 PM CDT
- In force
- 113 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 44 counties
Allen County, KS, Anderson County, KS, Atchison County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Ellsworth County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Jackson County, KS, Jefferson County, KS, Jewell County, KS, Johnson County, KS, Leavenworth County, KS, Lincoln County, KS, Linn County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Miami County, KS, Mitchell County, KS, Morris County, KS, Osage County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Pottawatomie County, KS, Republic County, KS, Riley County, KS, Rooks County, KS, Russell County, KS, Saline County, KS, Shawnee County, KS, Smith County, KS, Wabaunsee County, KS, Washington County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS
The radar
The Topeka radar (KTWX), 68 km from the middle of the area, began a volume at 16:40 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
Topeka, KS (KFOE), launched 12:00Z, 4.6 hours before the alert went out and 119 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
- 2062 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 944 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 9.8
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 |
|---|---|---|---|---|
| Jul 18, 9:21 PM CDT | Mesoscale Discussion | SPC | Clay, Cloud, Jewell, Lincoln, Marshall, Mitchell and 6 more | 114 min |
| Jul 19, 12:47 AM CDT | Mesoscale Discussion | SPC | Marshall, Nemaha, Washington | 118 min |
| Jul 19, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Doniphan, Jackson, Marshall, Nemaha and 3 more | 5 hr |
| Jul 19, 3:52 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Geary, Jackson, Jefferson and 7 more | 53 min |
| Jul 19, 12:26 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Atchison, Barton, Bourbon, Chase and 43 more | 8 hr |
| Jul 19, 2:43 PM CDT | Mesoscale Discussion | SPC | Atchison, Douglas, Franklin, Geary, Jackson, Jefferson and 10 more | 92 min |
| Jul 19, 5:42 PM CDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Finney, Ford and 10 more | 3 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.