Alert archive / Missouri / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 301
The Storm Prediction Center issued this severe thunderstorm watch at May 31, 2017, 1:40 PM CDT for 5 counties in Kansas; 22 counties in Missouri. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2017, 1:40 PM CDT (18:40 UTC)
- Expired
- May 31, 2017, 6:50 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 27 counties
Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Linn County, KS, Miami County, KS, Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Vernon County, MO, Webster County, MO
The radar
The Springfield radar (KSGF), 90 km from the middle of the area, began a volume at 18:42 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
- 40%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 1:52 PM CDT | Severe Thunderstorm Warning | EAX | Linn, Miami | 38 min |
| May 31, 2:05 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 55 min |
| May 31, 2:44 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 61 min |
| May 31, 2:57 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Henry | 48 min |
| May 31, 5:47 PM CDT | Severe Thunderstorm Warning | SGF | Barry | 43 min |
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, 6.7 hours before the alert went out and 99 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
- 108 J/kg
- Mixed-layer CIN
- -156 J/kg
- Mixed-layer LCL
- 1398 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 1:45 PM CDT | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Linn, Miami | 60 min |
| May 31, 2:10 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Butler, Chase, Chautauqua, Cowley, Elk and 15 more | 6 hr |
| May 31, 6:39 PM CDT | Mesoscale Discussion | SPC | Cheyenne | 66 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.