Alert archive / Missouri / Severe Thunderstorm Watches in 2018

Severe Thunderstorm Watch 339

August 16, 201834 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at Aug 16, 2018, 6:51 PM CDT for 34 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 16, 2018, 6:51 PM CDT (23:51 UTC)
Expired
Aug 17, 2018, 12:28 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 34 counties

Barry County, MO, Barton County, MO, Benton County, MO, Camden County, MO, Cedar County, MO, Christian County, MO, Dade County, MO, Dallas County, MO, Dent County, MO, Douglas County, MO, Greene County, MO, Hickory County, MO, Howell County, MO, Jasper County, MO, Laclede County, MO, Lawrence County, MO, Maries County, MO, McDonald County, MO, Miller County, MO, Morgan County, MO, Newton County, MO, Oregon County, MO, Ozark County, MO, Phelps County, MO, Polk County, MO, Pulaski 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), 57 km from the middle of the area, began a volume at 23:54 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
2%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Aug 16, 7:25 PM CDTSevere Thunderstorm WarningSGFBarton, Vernon50 min
Aug 16, 7:37 PM CDTSevere Thunderstorm WarningSGFDade, Lawrence38 min
Aug 16, 7:52 PM CDTSevere Thunderstorm WarningSGFGreene38 min
Aug 16, 8:03 PM CDTSevere Thunderstorm WarningSGFCedar, Dade, Polk42 min
Aug 16, 8:08 PM CDTSevere Thunderstorm WarningSGFChristian52 min
Aug 16, 8:28 PM CDTSevere Thunderstorm WarningSGFGreene30 min
Aug 16, 11:37 PM CDTSevere Thunderstorm WarningSGFOregon, Shannon23 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 3:12 PM CDTMesoscale DiscussionSPCAndrew, Buchanan, Caldwell, Carroll, Clay, Clinton and 7 more63 min
Aug 16, 3:28 PM CDTSevere Thunderstorm WatchSPCBarton, Bates, Buchanan, Caldwell, Carroll, Cass and 16 more8 hr
Aug 16, 5:52 PM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Camden, Cass and 31 more83 min

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; radar from the NEXRAD Level II archive.