A long ridge of Canadian high pressure continues to stretch from the Arctic Ocean across NW Canada southeast across the northern plains, Missouri, Louisiana, and into the Gulf of Mexico. We are on the east side of the ridge so northern Illinois continues to be under a very cold flow of air out of Canada. Skies will start out mostly clear tonight, but will become partly cloudy. It will be cold with a low in the single digits. The wind will be relatively light on Wednesday from the northwest, and the afternoon high will be close to 20 degrees. The ridge will be right over the area tomorrow night sliding to the east before daybreak as the next system to afftect the Stateline moves along the Canadian border. It is a relatively weak Alberta Clipper, and will probably produce some light snow in our area on Thursday. In fact, it appears as if there may be enough warm air aloft the some freezing drizzle could mix in with the light snow on Thursday afternoon, and Thursday night. The high temperatures on Thursday and Friday will be near 30 degrees or perhaps even into the low 30s on Friday. The system will sweep off to the east on Friday, and there is a chance of some snow flurries. Meteorological models continue to advertize the development and intensification of a major winter storm over the weekend. The problem is that there is a huge disrepancy in the track of the storm. This potential storm needs to be monitored closely for the next couple of days because of the possibilty that there could be a significant impact on the local area. Stay tuned. After the storm departs to the east the coldest arctic air of the season will dump into the Stateline Monday and Tuesday.
By Meteorologist
Eric Nefstead
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