Alert archive / Missouri / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 30
The Storm Prediction Center issued this severe thunderstorm watch at Apr 7, 2015, 8:24 PM CDT for 13 counties in Kansas; 19 counties in Missouri; 7 counties in Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 7, 2015, 8:24 PM CDT (01:24 UTC)
- Expired
- Apr 8, 2015, 1:38 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 39 counties
Allen County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Cowley County, KS, Crawford County, KS, Elk County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Sumner County, KS, Wilson County, KS, Barton County, MO, Bates County, MO, Benton County, MO, Cass County, MO, Cedar County, MO, Cooper County, MO, Dade County, MO, Henry County, MO, Hickory County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, Morgan County, MO, Newton County, MO, Pettis County, MO, Polk County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Grant County, OK, Kay County, OK, Nowata County, OK, Osage County, OK, Ottawa County, OK, Washington County, OK
The radar
The Pleasant Hill radar (KEAX), 152 km from the middle of the area, began a volume at 01:25 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
- 20%
- 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
- 70%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 8:39 PM CDT | Severe Thunderstorm Warning | EAX | Linn, Miami | 51 min |
| Apr 7, 8:43 PM CDT | Severe Thunderstorm Warning | ICT | Neosho, Wilson | 47 min |
| Apr 7, 8:56 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 49 min |
| Apr 7, 9:02 PM CDT | Tornado Warning | ICT | Neosho, Wilson | 28 min |
| Apr 7, 9:25 PM CDT | Severe Thunderstorm Warning | EAX | Linn | 50 min |
| Apr 7, 9:27 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 48 min |
| Apr 7, 9:29 PM CDT | Severe Thunderstorm Warning | ICT | Neosho, Wilson | 46 min |
| Apr 7, 9:42 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette | 48 min |
| Apr 7, 9:44 PM CDT | Tornado Warning | EAX | Bates | 31 min |
| Apr 7, 10:08 PM CDT | Severe Thunderstorm Warning | SGF | Bourbon | 35 min |
| Apr 7, 10:15 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass | 45 min |
| Apr 7, 10:16 PM CDT | Tornado Warning | ICT | Labette, Montgomery, Neosho, Wilson | 29 min |
| Apr 7, 10:45 PM CDT | Tornado Warning | ICT | Labette, Montgomery, Neosho, Wilson | 30 min |
| Apr 7, 10:52 PM CDT | Severe Thunderstorm Warning | EAX | Saline | 38 min |
| Apr 7, 11:14 PM CDT | Tornado Warning | ICT | Labette, Montgomery | 31 min |
| Apr 7, 11:41 PM CDT | Severe Thunderstorm Warning | ICT | Labette, Montgomery, Neosho, Wilson | 49 min |
| Apr 8, 12:25 AM CDT | Severe Thunderstorm Warning | ICT | Labette | 50 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 00:00Z, 1.4 hours before the alert went out and 140 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
- 2849 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1278 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 10:13 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 5 more | 2 hr |
| Apr 8, 6:17 AM CDT | Mesoscale Discussion | SPC | Bourbon, Linn, Miami | 88 min |
| Apr 8, 2:21 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 12 more | 114 min |
| Apr 8, 2:47 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 13 more | 4 hr |
| Apr 8, 3:37 PM CDT | Tornado Watch | SPC | Allen, Barber, Butler, Chase, Chautauqua, Cowley and 16 more | 8 hr |
| Apr 8, 5:31 PM CDT | Mesoscale Discussion | SPC | Chase, Harvey, Kingman, Marion, Pratt, Reno | 59 min |
| Apr 8, 5:45 PM CDT | Mesoscale Discussion | SPC | Johnson, Miami | 60 min |
| Apr 8, 6:39 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Audrain, Barton, Bates, Benton, Boone and 54 more | 6 hr |
| Apr 8, 9:33 AM CDT | Mesoscale Discussion | SPC | Adair, Audrain, Benton, Boone, Caldwell, Callaway and 45 more | 57 min |
| Apr 8, 12:01 PM CDT | Mesoscale Discussion | SPC | Cole, Crawford, Dent, Franklin, Gasconade, Iron and 15 more | 59 min |
| Apr 8, 12:50 PM CDT | Mesoscale Discussion | SPC | Franklin, Gasconade, Jefferson, Lincoln, Montgomery, Osage and 4 more | 85 min |
| Apr 8, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | Callaway, Crawford, Franklin, Gasconade, Jefferson, Lincoln and 10 more | 5 hr |
| Apr 8, 2:43 PM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Gasconade, Jefferson, Lincoln, Montgomery and 9 more | 92 min |
| Apr 8, 3:42 PM CDT | Mesoscale Discussion | SPC | Iron, Jefferson, Perry, Sainte Genevieve, Saint Francois, Washington | 63 min |
| Apr 8, 4:07 PM CDT | Tornado Watch | SPC | Bollinger, Cape Girardeau, Iron, Jefferson, Madison, Perry and 3 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2015Severe Thunderstorm Watches in Kansas, 2015Severe Thunderstorm Watches in Oklahoma, 2015Every severe thunderstorm watch in 2015
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.