LATEST FORECAST DISCUSSION
Meteorologist: Darren Maier
Clouds are thickening up tonight as moisture increases with a southerly flow. A warm front will be lifting up into Southern Wisconsin by early Tuesday, bringing the extra moisture and mild air northward. Our best chance to see some light rain and drizzle will come during the overnight hours with lows in the mid 30's. Most areas can expect to remain above freezing tonight, but pockets with freezing temperatures will be possible, mainly to the north/east.
A damp but mild finish to the month of February as low pressure tracks into the southern half of Western Wisconsin through the day. The close proximity of the low will keep mild air in place and the result will be all liquid precipitation. The good news is this will be light, with total rainfall amounts not expected to be more than a tenth or two in any given location. River flooding has been a problem in the last week or two, but this precipitation shouldn't really add to those concerns. Highs will be in the 40's again Tuesday, before colder air begins to arrive overnight into Wednesday.
The low will be sliding into the Great Lakes, while still wrapping some light precipitation into the area on the backside, so the result will be a change to some light snow. An upper trough will also be digging further south on Wednesday, adding to the chances for additional flurries and snow showers. The first day of meteorological spring and March will be very seasonable, with highs in the low to mid 30's.
On Thursday a weak Alberta Clipper will be coming in from the northwest, but its overall impact currently looks minimal. The day will come with clouds and a bit of sun, with a small chance of some light snow into the afternoon. It is also expected to be the coldest day with highs near freezing. Once this system moves out, the pattern will begin to flatten out again, leading to a warm up into the weekend.
Winds will begin to shift back to the south on Friday, out ahead of a larger system that will track over the Northern Plains. Sunshine will mix with increasing clouds in the afternoon, and by Friday night we could see a little more light snow develop out ahead of a warm front. Highs during the day will be in the mid 30's. Temperatures won't drop much at night as the warm front pushes through and southerly winds continue. This will set us up for a milder, first weekend of March. Both weekend days currently look dry with some clouds Saturday and a mostly sunny sky Sunday. Highs will climb well into the 40's and low 50's.