Cloudy, but quiet Tuesday ahead

Winter storm system to follow Wednesday/Thursday
Published: Jan. 16, 2023 at 10:06 PM CST
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ROCKFORD, Ill. (WIFR) - It surely wasn’t the most pleasant Monday in the Stateline, but at least it was a warm one.

Despite most of the area being on the receiving end of about a half inch of rainfall Monday, temperatures still managed to work into the middle and upper 40s, even touching 50° in a spot or two.

Somewhat cooler times are ahead of us Tuesday, thanks the the stubborn persistence of clouds in the skies above. A few sprinkles or snow flurries are even possible very early in the day, though those chances appear to be very, very low. Temperatures are to top out in the upper 30s to lower 40s.

A few sprinkles or flurries are possible very early in the day on Tuesday.
A few sprinkles or flurries are possible very early in the day on Tuesday.(Mark Henderson, WIFR)
Clouds are to dominate all day Tuesday, though the vast majority of the day is to be dry.
Clouds are to dominate all day Tuesday, though the vast majority of the day is to be dry.(Mark Henderson, WIFR)

Wednesday’s to be another cloudy one, with temperatures very similar to those witnessed on Tuesday. The daytime hours are to be quiet, but come Wednesday night, that story changes rather dramatically.

Precipitation will be on approach Wednesday afternoon.
Precipitation will be on approach Wednesday afternoon.(Mark Henderson, WIFR)

Another dynamic storm system is to take aim on the region beginning Wednesday night, and will likely have some sort of impact on our weather well into Thursday. While the exact details are still to be ironed out, there’s a bit more clarity showing up in recent computer model runs.

The current thinking now is that precipitation is to begin as snow Wednesday evening, with an eventual transition to a wintry mix and then rain likely occurring overnight. Note, though, that the rain/snow cutoff line is to be positioned very, very close to our area, meaning even the slightest southward shift in the storm’s track may have profound impacts on the local level.

Precipitation will begin to transition over to rain or a wintry mix Wednesday night into early...
Precipitation will begin to transition over to rain or a wintry mix Wednesday night into early Thursday morning.(Mark Henderson, WIFR)
Precipitation will begin to mix with or change over to rain at some point Wednesday night or...
Precipitation will begin to mix with or change over to rain at some point Wednesday night or early Thursday.(Mark Henderson, WIFR)
The rain/snow line will continue to lift a bit more to the north early Thursday.
The rain/snow line will continue to lift a bit more to the north early Thursday.(Mark Henderson, WIFR)

We’ll find ourselves in the storm’s dry slot for much of Thursday morning, meaning a lengthy break in the action is likely during that time.

We're likely to see a break in the action for a good part of Thursday morning.
We're likely to see a break in the action for a good part of Thursday morning.(Mark Henderson, WIFR)
We'll find ourselves some dry time early Thursday as a dry slot works overhead.
We'll find ourselves some dry time early Thursday as a dry slot works overhead.(Mark Henderson, WIFR)

Another round of precipitation is likely to take place in the afternoon hours Thursday. The thought is that it’d come initially as rain, but as colder air filters in on the back side of the storm system, a transition back to snow seems to be logical later in the afternoon.

Most of us will be seeing rain by midday Thursday.
Most of us will be seeing rain by midday Thursday.(Mark Henderson, WIFR)
A transition back from rain to snow may take place later in the day on Thursday.
A transition back from rain to snow may take place later in the day on Thursday.(Mark Henderson, WIFR)
A little snow may sneak back in on the system's back side late Thursday.
A little snow may sneak back in on the system's back side late Thursday.(Mark Henderson, WIFR)

As things stand right now, this does not appear to be a scenario that lends itself to big snows here. The current thought is that the heaviest snow will fall in portions of northern Iowa, southern Minnesota, and much of Wisconsin.

However, it should be noted that this forecast is NOT set in stone. The slightest shift southward in the storm’s track would spell more in the way of snow here, while a northward jog would mean even less snow and more rain. It’s a situation worth monitoring in the coming days and we’ll do just that.