textproduct: La Crosse
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Remaining very cold through Saturday and then more seasonable temperatures return from Sunday into Wednesday.
- Light snow accumulations look likely from Sunday into Sunday night and from Tuesday night into Wednesday.
DISCUSSION
Issued at 217 AM CST Thu Jan 29 2026
Tonight and Friday
From tonight into Friday, a strong shortwave trough will move south through the Northern Plains, Upper Mississippi River Valley, and Great Lakes. The best moisture will be located downwind from the Great Lakes and along the better frontogenetic forcing to our west over the Northern Plains. Meanwhile, in our area, there was some discussion about adding some flurries to the forecast, but with the moisture being rather shallow with less than 50 mb and this moisture being outside of dendritic growth zone, it was decided to leave them out at this time.
High temperatures on Friday will range from 5 to 15 and low temperatures will be in the single digits below zero.
Sunday through Wednesday
The western upper level ridge will build gradually build east and then flatten. As this occurs, Pacific air masses will move into the region. This will bring a return to more seasonable temperatures with high temperatures in the lower and mid-20s.
On Sunday and Sunday night, accumulating snow looks very likely with 90 percent of the global ensemble members showing at 0.1 inches of snow. As far as least 1 inch of snow, the probabilities range from anywhere from 25 to 40 percent probability north of Interstate 94, and less than 25 percent for the remainder of the area. The higher end solutions are in the 1.5 to 2 inch range.
Another round of accumulating snow looks possible on Tuesday night and Wednesday. 60 percent of the global ensemble members have at least 0.1 inches of snow. Up to 25 percent members produce at least 1 inch of snow. The higher end solutions are in the 1 to 1.5 inch range.
AVIATION /12Z TAFS THROUGH 12Z FRIDAY/
Issued at 528 AM CST Thu Jan 29 2026
Ceilings will be lowering to around 5K feet during the mid- to late evening in the wake of a shortwave trough. During the overnight, the ceilings may become IFR/MVFR.
ARX WATCHES/WARNINGS/ADVISORIES
WI...None. MN...None. IA...None.
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