textproduct: Grand Rapids

KEY MESSAGES

- Cold Tonight, then Warming Up

- Clipper System Sunday Night into Monday

- Another Clipper System Thursday into Friday

DISCUSSION

Issued at 226 PM EST Sat Jan 31 2026

- Cold Tonight, then Warming Up

Clouds continue to clear the area with clear skies expected overnight. The clear skies paired with light to calm winds will set the stage for radiational cooling. Collaborating with other offices in Michigan went toward the lower end of guidance for temperatures tonight. Probabilities of temperatures of 5 below zero or lower are 40 to 70 percent across much of the area with a 20 to 30 percent chance of temperatures reaching -10 mainly along US-131. At this time not planning a Cold Weather Advisory as confidence isn't high enough that we'll see wind chills much below air temperatures due to the calm winds.

After tonight the warmer temperatures move in for the rest of next week with highs in the 20s and lows in the single digits to teens above zero. However there is a signal for cold weather to return next weekend.

- Clipper System Sunday Night into Monday

Snow returns late Sunday night into Monday as a weak shortwave trough swings through the region. The deeper moisture looks to move off by the afternoon so the best snowfall rates will be overnight into early Monday morning. Overall most of the area should see some snow with the better accumulations along the lakeshore north of South Haven where the probability of an inch or more is 60-80 percent. Areas north of Grand Haven have a 30 to 50 percent chance of 2 inches or more. With the snowfall occuring during the Monday morning commute some travel impacts are likely.

- Another Clipper System Thursday into Friday

A deeper system looks to move in toward the end of next week. There are some differences within the cluster analysis on the strengths and placement of the low which will impact snowfall totals. At this time warm air advection and westerly flow over Lake Michigan could spark lake effect showers early in the day Thursday before the trough axis swings through Thursday night into Friday. Colder air advecting in on the backside will likely cause a transition to lake effect through the remainder of Friday into the weekend. Currently the 24 hour probability of 2 inches or more is 30 to 50 percent across the area and the probability of 2 inches or more is 20 to 30 percent with the best probabilities along the lakeshore. Definitely a timeframe to watch with snow impacting at least the Friday morning commute.

AVIATION /18Z TAFS THROUGH 18Z SUNDAY/

Issued at 1225 PM EST Sat Jan 31 2026

MVFR stratocu covers all off the terminals except MKG. However, visible satellite imagery shows the leading edge of clear skies moving south across central Lower and will move across the terminals this afternoon, leading to clear skies by early evening.

GRR WATCHES/WARNINGS/ADVISORIES

MI...None. MARINE...None.