Everything possible within the next 36 hours

Winter Weather Advisories in effect for tonight.
Flood Watches in effect for Thursday.
Winter Storm Watches in effect for Friday.
High Wind Watches in effect for Thursday night into Friday.

TONIGHT:

Warm advection will allow temperatures to rise from the middle 30s into the lower 40s by morning. Light sleet and snow will be possible for Southern Wisconsin this evening with minor accumulations there. A Winter Weather Advisory is in effect for Green, Rock, and Walworth Counties.

As the warm air filters in late night, thunderstorms will be likely area-wide. Some may produce very gusty winds.

THURSDAY:

Warm air will continue to filter into the area, accompanied by rounds of showers and thunderstorms. The Storm Prediction Center has put our southern counties in a slight risk of severe with the main threat being damaging straight line winds. South of I-80 there will be a threat of tornadoes during the day Thursday.

Rain and thunderstorms may produce flooding as our ground is still frozen and most rivers and creekbeds are covered with ice. A Flood Watch is in effect for all of Northern Illinois through Friday.

THURSDAY NIGHT:

Low pressure will work into Southern Wisconsin. Winds will be increasing until this time. Some gusts may approach 50-60mph which may bring down trees and powerlines. A High Wind Watch has been issued for Northwestern Illinois for this possibility. Flooding may be an ongoing threat.

Temperatures will fall into the upper 20s during the night which will allow our rain to change to snow. While heavy snow isn’t likely here, the blowing will be phenomenal! A Winter Storm Watch has been issued for Northwestern Illinois for this possibility.

FRIDAY:

Light snow will be accompanied by 30-40mph sustained winds. This will cause blowing and drifting, even with light accumulations…in the 1-3 inch range.

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This post was written by Eric Sorensen on February 28, 2007

Watch for Rising Water Levels!

With the possibility of receiving more than an inch of rainfall Wednesday night into Thursday, the National Weather Service offices in Chicago and the Quad Cities have issued Flood Watches encompassing all of Northern Illinois.

When we add some fresh rainwater on top of the snow, we will melt off all of the snow within a few hours. All of the runoff will flow into the creeks and rivers (which are frozen over with thick ice). For a few hours, the runoff may actually flow on top of the ice creating mammoth icebergs on area rivers. Ice jams will be a threat by Friday as well, especially once the temperatures fall below freezing again.

If you live in a low-lying area, be mindful of this forecast. In addition, NEVER drive across a flooded roadway. -ERIC

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This post was written by Eric Sorensen on February 28, 2007

Another Biggie!

Another impressive storm system will affect every resident of the Midwest for the later half of the week. The current forecast track brings areas of heavy rain to much of Iowa and Southern Wisconsin where 2″ is possible! There will be copious amounts of snow on the back side of this storm from Sioux City, Iowa to Minneapolis, then up to the Northwoods of Wisconsin.

Our attention will be on the rain threat. If we receive an inch of rain on top of the 4 inches of snow on the ground…on top of the frozen ground, we could have some major flooding problems. The National Weather Service in the Quad Cities has already posted a Flood Watch for the area.

Click on our sister station KTIV-TV in Sioux City, Iowa for their storm coverage.

You can monitor area river levels for Northeastern Illinois by clicking here.
You can monitor area river levels for Northwestern Illinois by clicking here.
You can monitor area river levels for Southern Wisconsin by clicking here.

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This post was written by Eric Sorensen on February 27, 2007

Heavyweight Bout

We are inbetween rounds of a heavyweight bout right now. In Round 1, Mother Nature tried to knock us out with a messy situation that took place this past weekend. Right now we are sitting in our corner on the stool catching our breath and resting our body from the back-breaking shoveling. The bell for Round 2 will ring Wednesday night when the next potent weathermaker rolls in.

Now to the weather jargon. The jet stream is slightly ridging overhead today which will bring in some slightly drier air and allow us to drop any precipitation from the forecast for this Tuesday. As you can see across the Pacific northwest another storm system is already brewing. This storm is moving rapidly at this point and should start to draw some showers into our area by Wednesday night. At the onset, we will be hovering right along the freezing line creating a mixed bag of precipiptation. By Thursday, southeasterly winds should allow for some strong warm air advection, which will warm the atmosphere significantly. This should change any mixed precipitation into all rain for the first day of March. By Friday, there will be enough wrap around moisture to bring some snowflakes to the Stateline. By that time most of the energy from this storm should have passed, meaning snowfall totals will be fairly light. -ADAM

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This post was written by Eric Sorensen on February 27, 2007

Wisconsin Snow

These pictures were taken by Cameron Moreland, Chief Meteorologist at WGBA-TV in Green Bay, Wisconsin and relayed to us via NBC26 Meteorologist Steve Brown. Parts of Sheboygan County received 20″ of snow. Even though we had a heavy, wet snow here in the Rockford area, it certainly could have been worse for us! -ERIC

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This post was written by Eric Sorensen on February 27, 2007

Here we go again?

While we’ve still got light snow falling in Rockford today, remnants of our weekend slush-maker, we’re already watching our next weathermaker materialize out west. Click on the image on the upper right for a look at HPC’s winter weather hazards map for DAY3 (Wednesday AM to Thursday AM). It’s just a probability map. Right now it appears this system will track further north than this past system, bringing mostly rain to our area. -ERIC

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This post was written by Eric Sorensen on February 26, 2007

Not Clear Yet

Some light snow showers continue to push through the area, though the snow is not amounting to much at all. The primary roadways and main arteries around the area aren’t too bad this morning. The slush on the highways and interstates has been plowed aside, merely leaving damp and wet conditions.

My main concern this morning is on the secondary roadways and sidestreets. These areas have leftover slush on them that has frozen and is causing some slick and slippery conditions. Therefore, you might want to skip that secret shortcut today in favor of a roadway that typically sees more traffic. -ADAM

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This post was written by Eric Sorensen on February 26, 2007

7 Day Forecast

Having some problems trying to access the website so here is the 7 Day forecast.

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This post was written by Eric Sorensen on February 26, 2007

Slippery

With temperatures falling at or below freezing tonight, this morning’s rain has caused “black ice” to form on the roads which will make the morning commute a little slick. Eric called me a little bit ago and said that parts of Highway 20 near Cherry Valley were already fairly slippery. Make sure that you drive safely when out on the roads. – CANDY

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This post was written by Eric Sorensen on February 26, 2007

Updated Snowfall Forecast


Snow totals have been trimmed back for this event. With the mixing of sleet (heavy at times) and freezing rain last night and the rain this morning, totals just didn’t add up as orginally thought earlier this week.

Most areas around here saw about 3-5″ of snow with a few locations receiving a little more. The big winners were just to the north of our viewing area in southern Wisconsin where some places received close to a foot of snow.

Unless something changes with the forecast for this evening, it still looks like we’ll pick up a couple more inches through tonight and Monday. Totals for the whole storm event (including Friday night) will be close to 6-7″ here and over a foot in southern Wisconsin.

I did want to discuss a little about this storm. As you all know, the track of the system is very important in determining snow totals and precip type. The low pretty much tracked right over us in Northern Illinois. A good rule of thumb (along with other methods) is that the heaviest bands of snow will set up just to the north and west of where the low pressure tracks. So that would have put the heaviest bands in Northeastern Iowa and Southern Wisconsin…which for the most part held true. With the December 1st snow storm, the low tracked just a little further south and that put us in the favorable region. Models were also having a hard time picking up on the warm air that was occurring just a few thousand feet up in the atmosphere. Temperatures started below freezing at the onset of the storm, but then during the evening last night they rose into the middle 30s. This caused the snow to mix with freezing rain and sleet which can really take down the snow totals. We also had fairly strong easterly winds during Saturday afternoon, so it took awhile for the snow to overcome the drier air.

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This post was written by Eric Sorensen on February 25, 2007