ST. LOUIS, MO — A windy and warm day with moisture surging north into the region. As mentioned yesterday, the arrival of the higher humidity would be accompanied by more clouds and even a few brief showers. Those showers dot the radar at 11:05 AM... with the only "heavy shower" currently over northern Lincoln County and far southeast Pike County. This is zipping along to the northeast...with other much smaller and lighter showers scattered elsewhere. So as previously forecast... not a great day...but not a bad day either...with most staying dry for the vast majority of the day.
The interesting weather is this evening and overnight. A slow moving cold front will team up with the maturing conveyor belt of moisture to result in two zones of scattered showers and storms. I'm still tracking the potential of severe weather for parts of the Bi-state area tonight. However, for those of you with storm anxiety (I know you're out there!) I want to make sure you know this does not look like a widespread, high-end event. Instead, this is just a slightly elevated potential for a few spot reports of hail and maybe some wind in our area...and many in the "risk zones" may see little if any severe weather...the reports will be spotty.
The activity over northwest Missouri will be limited to isolated, but intense severe storms with large hail, wind and a few tornadoes possible. Those storms will not affect this part of the state.
These storms will build northeast into southeast Missouri late this evening...after 7PM...and will be limited to areas southeast of I-44 and from the STL metro to the south. They are most likely to occur during the 7PM to 1AM time frame...although it will not be raining that whole time. The chief concern with these storms will be some spotty reports of hail...and perhaps a couple of strong wind gusts.
Outside of those two zones... the risk of severe weather is not zero...but it is pretty low the way it looks right now.