***Watch WISN 12 News today at 5, 6, & 10pm for the latest on the weekend storm!***
Thank you for checking out the Weather Watch 12 blog. Yesterday in the blog we focused on the LRC, a weather pattern theory that allows us to make accurate long range forecasts. For more information on that theory and how we used it to predict this weekend’s storm back on December 29 continue reading after this entry.
Now onto tonight’s chance of precipitation and the upcoming weekend storm. Numerous advisories have been posted for freezing rain and mixed precipitation across the Midwest. None of the advisories are in Southeast Wisconsin at this time. The closest Freezing Rain Advisories are for Dane and Rock Counties in South Central Wisconsin.
Around Milwaukee we may not escape the precipitation all to together, but whatever we see may only amount to trace amounts. The main disturbance will slide well south of Wisconsin tonight, but it is possible for a very brief period of freezing drizzle or sleet to occur. If anyone in the viewing area does see precipitation, the best chance is near the Illinois border.
Below is the total precipitation forecast thru midday Thursday. This map is from our in house high resolution computer model!
When we make a weather forecast we always look at several different computer models. Another model of choice is the NAM(North American Model). This model also is not very impressed with our precipitation chances for tonight. Below is the total precipitation forecasted by the 18Z NAM. The light green shade over southern Wisconsin is trace amounts up to 0.10″. I don’t see anyone in our viewing area picking up move than a few hundredths at this point.
To quickly recap, very light and patchy freezing drizzle or sleet is possible tonight. Most areas will just see trace amounts or nothing. The precipitation may be a trace to 0.03″ closer to the Illinois border. After this weak disturbance passes by, the focus shifts to the weekend storm.
Right now it looks like rain will move in later Saturday. As cold air works into the storm a change to light snow is possible on Sunday. This will be a wetter storm for Milwaukee with total precipitation around 0.25″ to 0.75″. A look at the entire storm from the 12Z GFS of total precipitation below, shows the bullseye for this storm with up to 2.00″ of precipitation will be centered in the Dakotas. This is the area that could see heavy snow!
If you have questions on this upcoming storm please post them in the comments section of the blog and we will provide an answer.
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Thank you for stopping by the blog and make sure to watch our newscasts for the most up-to-date information!