Alert archive / Missouri / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 283
The Storm Prediction Center issued this severe thunderstorm watch at Jul 19, 2018, 11:22 AM CDT for 53 counties in Missouri. It was in force for 10 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2018, 11:22 AM CDT (16:22 UTC)
- Expired
- Jul 19, 2018, 8:57 PM CDT
- In force
- 10 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 65 kt
All 53 counties
Barry County, MO, Barton County, MO, Bates County, MO, Benton County, MO, Caldwell County, MO, Callaway County, MO, Camden County, MO, Cass County, MO, Cedar County, MO, Christian County, MO, Clay County, MO, Clinton County, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Gasconade County, MO, Greene County, MO, Henry County, MO, Hickory County, MO, Howell County, MO, Iron County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Laclede County, MO, Lafayette County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Moniteau County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Osage County, MO, Ozark County, MO, Pettis County, MO, Phelps County, MO, Polk County, MO, Pulaski County, MO, Ray County, MO, Reynolds County, MO, Shannon County, MO, St. Clair County, MO, Stone County, MO, Taney County, MO, Texas County, MO, Vernon County, MO, Webster County, MO, Wright County, MO
The radar
The Springfield radar (KSGF), 122 km from the middle of the area, began a volume at 16:23 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
- 80%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
32 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 11:24 AM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Ray | 36 min |
| Jul 19, 11:55 AM CDT | Severe Thunderstorm Warning | SGF | Benton, Camden, Hickory, Morgan | 65 min |
| Jul 19, 12:16 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette | 29 min |
| Jul 19, 12:38 PM CDT | Severe Thunderstorm Warning | EAX | Johnson, Lafayette, Pettis | 37 min |
| Jul 19, 1:10 PM CDT | Severe Thunderstorm Warning | EAX | Henry, Johnson, Pettis | 24 min |
| Jul 19, 1:21 PM CDT | Severe Thunderstorm Warning | SGF | Phelps, Pulaski, Texas | 54 min |
| Jul 19, 1:30 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson, Johnson | 30 min |
| Jul 19, 1:49 PM CDT | Severe Thunderstorm Warning | EAX | Jackson | 41 min |
| Jul 19, 1:52 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Johnson | 38 min |
| Jul 19, 2:02 PM CDT | Severe Thunderstorm Warning | EAX | Jackson, Lafayette | 23 min |
| Jul 19, 2:05 PM CDT | Severe Thunderstorm Warning | EAX | Henry, Johnson | 40 min |
| Jul 19, 2:17 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson | 43 min |
| Jul 19, 2:20 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry | 25 min |
| Jul 19, 2:40 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Johnson | 50 min |
| Jul 19, 2:43 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Henry | 32 min |
| Jul 19, 3:05 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry | 25 min |
| Jul 19, 3:23 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Henry | 35 min |
| Jul 19, 3:23 PM CDT | Severe Thunderstorm Warning | SGF | Cedar, Hickory, Polk, St. Clair | 67 min |
| Jul 19, 3:31 PM CDT | Severe Thunderstorm Warning | EAX | Cass, Jackson | 29 min |
| Jul 19, 3:37 PM CDT | Severe Thunderstorm Warning | SGF | Cedar, St. Clair, Vernon | 29 min |
| Jul 19, 4:00 PM CDT | Severe Thunderstorm Warning | SGF | Dade, Greene, Lawrence, Polk | 60 min |
| Jul 19, 4:15 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Cass, Jackson, Johnson, Lafayette | 60 min |
| Jul 19, 4:43 PM CDT | Severe Thunderstorm Warning | SGF | St. Clair | 62 min |
| Jul 19, 5:06 PM CDT | Severe Thunderstorm Warning | SGF | Barton, Cedar, Dade, Vernon | 54 min |
| Jul 19, 5:10 PM CDT | Severe Thunderstorm Warning | EAX | Bates, Henry | 28 min |
| Jul 19, 5:45 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Cedar, Dade, Greene, Jasper, Lawrence and 2 more | 45 min |
| Jul 19, 6:07 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Christian, Greene, Lawrence, Stone, Webster | 38 min |
| Jul 19, 6:32 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Stone, Taney | 58 min |
| Jul 19, 6:45 PM CDT | Severe Thunderstorm Warning | SGF | Barry, Christian, Douglas, Greene, Lawrence, Stone and 2 more | 60 min |
| Jul 19, 7:10 PM CDT | Severe Thunderstorm Warning | SGF | Ozark | 65 min |
| Jul 19, 7:31 PM CDT | Severe Thunderstorm Warning | SGF | Douglas, Howell, Texas, Wright | 59 min |
| Jul 19, 8:14 PM CDT | Severe Thunderstorm Warning | SGF | Howell, Ozark | 36 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, 4.4 hours before the alert went out and 171 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
- 1220 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 767 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 12:47 AM CDT | Mesoscale Discussion | SPC | Atchison, Holt | 118 min |
| Jul 19, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Andrew, Atchison, Buchanan, Holt, Nodaway | 5 hr |
| Jul 19, 3:52 AM CDT | Mesoscale Discussion | SPC | Atchison, Holt | 53 min |
| Jul 19, 9:58 AM CDT | Mesoscale Discussion | SPC | Andrew, Bates, Benton, Boone, Caldwell, Callaway and 45 more | 2 hr |
| Jul 19, 12:26 PM CDT | Severe Thunderstorm Watch | SPC | Platte | 8 hr |
| Jul 19, 2:15 PM CDT | Mesoscale Discussion | SPC | Bollinger, Butler, Carter, Christian, Dallas, Dent and 27 more | 2 hr |
| Jul 19, 2:32 PM CDT | Mesoscale Discussion | SPC | Mercer, Putnam, Schuyler | 118 min |
| Jul 19, 2:43 PM CDT | Mesoscale Discussion | SPC | Platte | 92 min |
| Jul 19, 3:11 PM CDT | Tornado Watch | SPC | Clark, Scotland | 6 hr |
| Jul 19, 5:18 PM CDT | Mesoscale Discussion | SPC | Clark, Schuyler, Scotland | 57 min |
| Jul 19, 6:26 PM CDT | Mesoscale Discussion | SPC | Clark, Knox, Lewis, Lincoln, Marion, Pike and 1 more | 64 min |
| Jul 19, 6:49 PM CDT | Severe Thunderstorm Watch | SPC | Knox, Lewis, Lincoln, Marion, Pike, Ralls and 4 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Missouri, 2018Every severe thunderstorm watch 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.