Alert archive / Missouri / Severe Thunderstorm Watches in 2016
Severe Thunderstorm Watch 346
The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2016, 6:01 AM CDT for 21 counties in Illinois; 55 counties in Missouri. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 7, 2016, 6:01 AM CDT (11:01 UTC)
- Expired
- Jul 7, 2016, 12:08 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 76 counties
Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Hancock County, IL, Henderson County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, McDonough County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Warren County, IL, Washington County, IL, Audrain County, MO, Benton County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Cedar County, MO, City of Saint Louis, MO, Clark County, MO, Cole County, MO, Crawford County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Franklin County, MO, Gasconade County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Laclede County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Maries County, MO, Marion County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Oregon County, MO, Osage County, MO, Phelps County, MO, Pike County, MO, Polk County, MO, Pulaski County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Scotland County, MO, Shannon County, MO, Shelby County, MO, St. Clair County, MO, Texas County, MO, Vernon County, MO, Warren County, MO, Washington County, MO, Webster County, MO, Wright County, MO
The radar
The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 11:02 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
- 5%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 5%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 6:06 AM CDT | Severe Thunderstorm Warning | SGF | Benton, Morgan, St. Clair | 54 min |
| Jul 7, 6:09 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau, Monroe and 1 more | 66 min |
| Jul 7, 6:41 AM CDT | Severe Thunderstorm Warning | SGF | Camden, Hickory, Miller | 64 min |
| Jul 7, 7:00 AM CDT | Severe Thunderstorm Warning | SGF | Cedar, Hickory, Polk, Vernon | 60 min |
| Jul 7, 7:06 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Franklin, Gasconade, Lincoln, Montgomery and 4 more | 54 min |
| Jul 7, 7:09 AM CDT | Severe Thunderstorm Warning | SGF | Dallas, Laclede, Maries, Phelps, Pulaski | 66 min |
| Jul 7, 7:11 AM CDT | Severe Thunderstorm Warning | LSX | Knox, Lewis, Marion, Shelby | 54 min |
| Jul 7, 7:18 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Cole, Marion, Monroe | 27 min |
| Jul 7, 7:32 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 58 min |
| Jul 7, 7:59 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey, Pike | 61 min |
| Jul 7, 8:26 AM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 34 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, 11.0 hours before the alert went out and 226 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
- 4161 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 937 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 5:26 AM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Calhoun, Franklin, Greene, Jackson and 10 more | 2 hr |
| Jul 7, 8:10 AM CDT | Mesoscale Discussion | SPC | Adams, Alexander, Bond, Brown, Calhoun, Cass and 32 more | 95 min |
| Jul 7, 12:16 PM CDT | Mesoscale Discussion | SPC | Edwards, Gallatin, Hardin, Johnson, Lawrence, Massac and 5 more | 59 min |
| Jul 7, 12:39 PM CDT | Severe Thunderstorm Watch | SPC | Edwards, Gallatin, Hamilton, Hardin, Johnson, Massac and 5 more | 4 hr |
| Jul 7, 1:22 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 20 more | 83 min |
| Jul 7, 1:37 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Andrew, Atchison, Bates, Buchanan, Caldwell and 31 more | 6 hr |
| Jul 7, 4:27 AM CDT | Mesoscale Discussion | SPC | Adair, Andrew, Buchanan, Caldwell, Carroll, Cass and 27 more | 93 min |
Nearby
Severe Thunderstorm Watches in Missouri, 2016Severe Thunderstorm Watches in Illinois, 2016Every severe thunderstorm watch in 2016
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.