Forecast: Weekend rain, wind, and fog
DENSE FOG ADVISORY in effect until 3am Monday for Ford and Iroquois counties.
MARGINAL RISK for severe weather across central Illinois Monday afternoon.
Our next weather maker is currently located over Kansas and as the low pressure center advances towards northern Illinois by Monday, our area will experience more rain chances and possibly thunderstorms between now and Monday night. The warmth and even humidity will promote two key rounds of thunderstorms, 1) Monday morning between 12-8am and 2) Monday afternoon between 1-4pm. Here is the breakdown of each weather factor between now and Tuesday morning...
RAIN/THUNDER: Rain chances will continue until 4am Tuesday. The first wave of heavy and rain and storms will be between 12am and 8am Monday morning, this is a 100% chance of rain but any storms will not be severe. The second wave between 1-4pm in the afternoon occurs because of the strong cold front which will mix with the warm and humid January weather. However, this is just a 50% chance for storms in central Illinois but storms could be strong with wind gusts up to 50mph or contain small hail, hence the issuance of the Marginal Risk for the area. Rain total for the event will be largely between ½-1".
FOG: Dense fog remains over eastern Illinois Sunday afternoon with visibilities down to ¼ mile or less. Dense Fog Advisories have mostly expired, but low visibilities are still being reported in eastern Illinois for Sunday night.
SNOW: A few wet snowflakes possible early Tuesday morning once temperatures are cold enough. However, forecast models don't produce more than .2". In additional, any snow will be hard pressed to stick with temperatures in the 50s for 4 consecutive days prior.
WINDS: wind will strengthen Monday with southerly winds up to 35 mph during the day. These gusty winds is why any afternoon thunderstorms could produce strong or severe wind gusts up to 50 mph. Wind shift to the west Monday night, still gusting up to 30 mph. Tuesday will have a colder northwesterly wind up to 35 mph.
TEMPERATURES: Unseasonably warm January weather has produced 3 straight 50-degree days, even a few 60° reading on Sunday. Monday will still be warm in the mid 50s before the cold front arrival in the afternoon, then temperatures plummet to the low 30s and upper 20s by Tuesday morning.