In Kansas- only Leavenworth- Wyandotte and Johnson counties are in the watch.
In Missouri- all Metro counties- Buchanan on the north and Cass on the south and counties eastward are included in ST Watch No. 347.
The NWS weather radar image shown here from the Pleasant Hill MO site shows a line of storms from Doniphan county Kansas eastward across St. Joseph- Cameron and east-northeast.
This line is due to sag into northern parts of the Metro over the next hour- and slowly progress southward.
Be alert for torrential rainfall with this slow-moving storm line as well as a lot of lightning.