Monday will be even warmer as 850mb temps rise to 20C. Most locations along and north of I-44 will reach 90 with a few low 90s possible. With 700mb temps between 10-14C, it will be hard to get
precip, none the less clouds. The exception will be across far south central Missouri (Oregon county) where an isolated shower or storm is possible since the cap will be a tad weaker there.
A strong upper level trough will move into the Northern Plains Tuesday with a trailing front into Kansas and Oklahoma. Areas across the eastern Ozarks may see an afternoon shower or storm however confidence is not high in this given warm mid level temps and little forcing available. With 850mb temps around 20-21C, expect highs around 90 again. Showers and storms will fire in KS and OK Tues evening as shortwave energy approaches. Most or all of this activity will stay west of the area given increasing convective inhibition during the Overnight hours.
Frontal boundary pushes closer Wednesday afternoon and this may be our best shot at showers and storms given that the air mass will likely be pretty unstable. Wind shear looks less than 30kts however instability will be high therefore will need to monitor for stronger storms Wednesday afternoon and evening. Wednesday also looks warm with highs around either side of 90.
Frontal boundary then looks to become diffuse or go stationary across the area from Thursday into the early part of the weekend. A zonal mid level pattern will exist during this time. This signal would suggest several chances for showers and storms during this time frame. Otherwise temps look to remain in the mid to upper 80s.
Heat index values this week will likely reach the middle to potentially upper 90s across portions of the area with the areas north and west of Interstate 44 into the Osage Plains favored. While this is not uncommon by any means, it will be the warmest it has "felt" so far this calendar year.