Alert archive / Missouri / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 384
The Storm Prediction Center issued this severe thunderstorm watch at Jun 30, 2017, 2:42 AM CDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 30, 2017, 2:42 AM CDT (07:42 UTC)
- Expired
- Jun 30, 2017, 8:39 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 46 counties
Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Johnson County, AR, Madison County, AR, Newton County, AR, Washington County, AR, Bourbon County, KS, Cherokee County, KS, Crawford County, KS, Barry County, MO, Barton County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Douglas County, MO, Greene County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, McDonald County, MO, Newton County, MO, Polk County, MO, Pulaski County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, Muskogee County, OK, Okmulgee County, OK, Ottawa County, OK, Rogers County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Springfield radar (KSGF), 105 km from the middle of the area, began a volume at 07:45 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
- 5%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 2:53 AM CDT | Severe Thunderstorm Warning | SGF | Bourbon, Crawford | 52 min |
| Jun 30, 3:16 AM CDT | Severe Thunderstorm Warning | SGF | Barton, Vernon | 59 min |
| Jun 30, 3:22 AM CDT | Severe Thunderstorm Warning | SGF | Cherokee | 53 min |
| Jun 30, 3:44 AM CDT | Severe Thunderstorm Warning | SGF | Crawford | 16 min |
| Jun 30, 4:04 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Ottawa | 41 min |
| Jun 30, 5:07 AM CDT | Severe Thunderstorm Warning | SGF | Christian, Dallas, Greene, Lawrence, Polk, Webster | 38 min |
| Jun 30, 5:35 AM CDT | Severe Thunderstorm Warning | SGF | Dallas, Laclede, Webster, Wright | 40 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, 7.7 hours before the alert went out and 58 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
- 973 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 1229 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 6:30 AM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Franklin, Johnson and 3 more | 2 hr |
| Jun 30, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | Crawford, Franklin, Sebastian | 7 hr |
| Jun 30, 6:27 PM CDT | Mesoscale Discussion | SPC | Crawford, Franklin, Sebastian, Washington | 93 min |
| Jun 29, 7:28 PM CDT | Mesoscale Discussion | SPC | Grant, Greeley, Hamilton, Kearny, Sherman, Stanton and 2 more | 2 hr |
| Jun 29, 8:37 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellis and 37 more | 83 min |
| Jun 29, 9:02 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Cloud, Jewell, Mitchell, Osborne, Ottawa and 5 more | 5 hr |
| Jun 29, 10:56 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Barber, Barton, Butler, Chase and 41 more | 6 hr |
| Jun 30, 1:32 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Coffey and 20 more | 118 min |
| Jun 30, 1:35 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Jackson, Nemaha, Pottawatomie | 2 hr |
| Jun 30, 4:37 AM CDT | Mesoscale Discussion | SPC | Barber, Chautauqua, Comanche, Cowley, Harper, Labette and 2 more | 113 min |
| Jun 30, 3:21 PM CDT | Mesoscale Discussion | SPC | Atoka, Beckham, Bryan, Caddo, Canadian, Carter and 39 more | 114 min |
Nearby
Severe Thunderstorm Watches in Missouri, 2017Severe Thunderstorm Watches in Oklahoma, 2017Severe Thunderstorm Watches in Arkansas, 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.