Clouds increase some on Wednesday ahead of a strong late season winter storm system set to take shape across the Plains. This slow-moving low-pressure area will keep us on the warm side of things and looks to push an elevated warm front into the Midwest bringing back the chance for rain for northern sections of the state along and mainly north of I-70. Winds will turn around to the east and southeast on Wednesday with a sharp temperature gradient developing as temps fail to escape the 40’s across Northern Indiana. However, to the south, where there will be more sunshine and a southerly wind, temps look to jump back into the 70’s.
The approach of the Plains storm system will help engulf the entire state into the warm sector on Thursday as a strong south breeze develops elevating temps well up into the 70’s for everyone with the exception, perhaps, for far Northern Indiana where winds will remain backed out of the east as clouds will remain most persistent. To the south, temps could approach 80 along the Ohio River.
This warmth along with a stream of low-level moisture may set the stage for some rough weather Thursday night with a squall line of showers and thunderstorms expected to traverse from west to east across the state. Some of these storms, especially for Western Indiana could be strong with damaging wind potential. The Storm Prediction Center has a Slight Risk in place for Eastern Illinois and Western Indiana. Rainfall on the order of a half inch to an inch appear likely at this time with locally heavier amounts with any stronger thunderstorms.
Behind this storm, temps will remain fairly mild with showers ending during the morning hours on Friday. We slide into the weekend on a dry note as high pressure looks to bring some quiet conditions Saturday with cooler temps in 50’s north and lower 60’s south.
Another low-pressure center looks to form across the Lower Mississippi River Valley by late Saturday driving the potential for more rainfall, possibly heavy, Saturday night and into early Sunday for southern sections of the Hoosier State. The weekend system could very well drop an inch plus for southern sections of the state with lighter amounts into Northern Indiana.
Looking further out the data favors a dry and cooler start on Monday. However, it appears we will warm it up quickly midweek with more storm chances next Wednesday and Thursday.