Clouds, drizzle and even light snow filled the skies Monday afternoon
and evening. Cloud cover and even a couple light showers will continue
through the night, but skies are expected to clear as high pressure
moves in Tuesday afternoon. Temperatures on Tuesday will warm into the
upper 40s, to near 50 degrees.
Tuesday will be a dry and pleasant day, but rain returns during the day
Wednesday and Thursday as a fairly active jet stream moves overhead by
the middle to end of the week. The cold front that moves through
Monday night will stall to the south during the afternoon Tuesday,
slowly lifting back north Wednesday. Copious amounts of moisture will
be pulled to the north beginning Wednesday morning leading to widespread
rainfall through the afternoon. By Wednesday evening, most of the
widespread rain will be coming to an end with cloudy skies and a few
light rain showers through Thursday morning.
Rain showers will once again develop during the day Thursday as the warm
front and an area of low pressure move closer to northern Illinois.
The overall track of the low and how far north the warm front lifts past
the Stateline will determine just how warm temperatures get Thursday
afternoon, with highs possibly reaching 60 degrees as far north as
southern Wisconsin. While it's not a certain, thunderstorms could also
be possible during the late afternoon and evening on Thursday. The
Storm Prediction Center
has much of the area highlighted in the 'general thunderstorm' risk for
the afternoon. But, if we get enough warm air and have just enough
instability present it's possible that a strong thunderstorm, or two,
develops close to the Stateline. A better chance for that may reside
just to the south across central Illinois.
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