Alert archive / Missouri / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 206
The Storm Prediction Center issued this severe thunderstorm watch at May 10, 2017, 6:30 PM CDT for Bourbon County, Cherokee County, Crawford County, Kansas; 20 counties in Missouri. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 10, 2017, 6:30 PM CDT (23:30 UTC)
- Expired
- May 10, 2017, 8:52 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 23 counties
Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Hickory County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, Miller County, MO, Morgan County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, St. Clair County, MO, Vernon County, MO, Webster County, MO
The radar
The Springfield radar (KSGF), 72 km from the middle of the area, began a volume at 23:30 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 60%
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.5 hours before the alert went out and 100 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
- 385 J/kg
- Mixed-layer CIN
- -229 J/kg
- Mixed-layer LCL
- 854 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:15 PM CDT | Mesoscale Discussion | SPC | Cloud, Jewell, Marshall, Mitchell, Osborne, Phillips and 4 more | 2 hr |
| May 9, 9:32 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Finney, Gove, Graham, Grant and 16 more | 58 min |
| May 10, 1:29 AM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Ellis, Gove, Graham, Jewell and 12 more | 61 min |
| May 10, 6:04 AM CDT | Mesoscale Discussion | SPC | Barber, Comanche, Harper, Kingman | 116 min |
| May 10, 12:39 PM CDT | Mesoscale Discussion | SPC | Bourbon, Franklin, Johnson, Leavenworth, Linn, Miami and 1 more | 3 hr |
| May 10, 3:11 PM CDT | Mesoscale Discussion | SPC | Grant, Haskell, Morton, Seward, Stevens | 94 min |
| May 10, 3:37 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 10 more | 113 min |
| May 10, 12:05 PM CDT | Mesoscale Discussion | SPC | Adair, Clark, Knox, Lewis, Putnam, Schuyler and 1 more | 2 hr |
| May 10, 12:59 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Clark, Knox, Lewis, Mercer, Putnam and 3 more | 7 hr |
| May 10, 3:48 PM CDT | Mesoscale Discussion | SPC | Clark, Knox, Lewis, Macon, Marion, Ralls and 2 more | 87 min |
Nearby
Severe Thunderstorm Watches in Missouri, 2017Severe Thunderstorm Watches in Kansas, 2017Every severe thunderstorm watch 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.