Alert archive / Missouri / Mesoscale Discussions in 2018
Mesoscale Discussion 242
The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2018, 5:08 PM CDT for 29 counties in Missouri. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 13, 2018, 5:08 PM CDT (22:08 UTC)
- Expired
- Apr 13, 2018, 7:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 29 counties
Benton County, MO, Camden County, MO, Carter County, MO, Christian County, MO, Cole County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Laclede County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Reynolds County, MO, Ripley County, MO, Shannon County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 102 km from the middle of the area, began a volume at 22:10 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
Springfield, MO (KSGF), launched 12:00Z, 10.1 hours before the alert went out and 153 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
- 1715 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 572 m²/s²
- 0-3 km storm-relative helicity
- 541 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 |
|---|---|---|---|---|
| Apr 13, 12:39 PM CDT | Mesoscale Discussion | SPC | Barton, Jasper, McDonald, Newton | 2 hr |
| Apr 13, 1:20 PM CDT | Tornado Watch | SPC | Barry, Barton, Cedar, Christian, Dade, Greene and 9 more | 9 hr |
| Apr 13, 2:06 PM CDT | Mesoscale Discussion | SPC | Andrew, Atchison, Buchanan, Caldwell, Cass, Clay and 13 more | 2 hr |
| Apr 13, 2:19 PM CDT | Tornado Watch | SPC | Adair, Andrew, Atchison, Bates, Buchanan, Caldwell and 24 more | 7 hr |
| Apr 13, 3:43 PM CDT | Mesoscale Discussion | SPC | Barry, Barton, Dade, Jasper, Lawrence, McDonald and 1 more | 92 min |
| Apr 13, 5:27 PM CDT | Tornado Watch | SPC | Bollinger, Butler, Camden, Cape Girardeau, Carter, Crawford and 33 more | 8 hr |
| Apr 13, 5:31 PM CDT | Mesoscale Discussion | SPC | Atchison | 29 min |
| Apr 13, 5:53 PM CDT | Mesoscale Discussion | SPC | Dunklin | 97 min |
Nearby
Mesoscale Discussions in Missouri, 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.