***Watch WISN 12 News for the latest on the potential weekend storm!***
A quick burst of snow swept across southeastern Wisconsin as expected Thursday afternoon and evening. Snow totals from viewers and the NWS had most areas picking up between 1″-2″, with a few totals around 3″. If you would like your total included in the list, or possibly used on WISN 12 News, just drop it off in the comments section of the blog.
Here is a list of totals from Thursday:
- Hartford 3.0″
- 3 mi. SW Oconomowoc 3.0″
- Palmyra 2.5″
- Waukesha 2.5″
- Hartland 2.3″
- Fox Point 2.25″
- Greenfield 2.25″
- Cedarburg 2.2″
- West Bend 2.0″
- Milwaukee – WISN 12 2.0″
- Shorewood 2.0″
- Franksville 1.8″
- Pewaukee 1.8″
- Kenosha 1.1″
- Burlington 1.0″
- Gurnee ‘not much’
Now that this small snow event has cleared the area, the focus can shift to the weekend. The weekend storm has taken many forecast ‘looks’ to this point, but the most important ‘look’ will be the one it takes on Saturday. Trying to pin down exactly where a storm will track is never easy, especially a potentially major winter storm.
Let’s look at the 00Z data that arrived Thursday evening. I’m happy to say that most of the models that I prefer to look at are coming into agreement. The timing of precipitation is still slightly different, but all are latching onto the more northern track.
Let’s break it down by each model…
NAM (North American Model)
- Possible mix to start, changing to rain
- Colder air changes precipitation back to snow
Below is the 00Z NAM forecast for noon Saturday. The 850mb 0C line, which generally represents the rain/snow line is pushing back southeast toward Milwaukee.
RPM (In-house high resolution model)
- Quickest onset of precipitation (Friday Night)
- Mix to rain, then back to snow
Below is the snowfall forecast from the RPM. Lowest totals near the Illinois border, higher totals in Fond du Lac and Sheboygan counties.
GFS (Global Forecast System)
- The GFS is now tracking closer to the NAM and RPM
- Possible mix, then change to snow
- Highest snow totals in northern part of viewing area
Below is the GFS precipitation forecast for this weekend. This shows 0.25″ to 0.50″ across much of our area. Some of this would be snow. Just click to enlarge.
Friday will be a key day in how our storm shakes out, so make sure to watch WISN 12 News from 4:30-7:00am and again at 5, 6, & 10pm. Updates will also be posted in the blog! And of course, drop your comments and questions off in the blog!