textproduct: Grand Forks

KEY MESSAGES

- Light snow today could bring travel impacts to portions of northwest Minnesota and the northern Red River Valley. The probability for 1 inch or greater of snow is about 60 percent. - A stronger storm system arrives on Tuesday, bringing a wide range of winter impacts from accumulating snow and mixed precipitation to high winds. There is a 50 percent chance for warning level impacts and an 80 percent chance for at least advisory level impacts.

- Much colder temperatures will arrive late week, with a 70 percent chance that wind chills drop to -30F or colder.

UPDATE

Issued at 1152 AM CST Mon Dec 8 2025

Starting to get some light snow moving into our northwestern counties, and Rolla AWOS has gone down to 1/2 mile. CAMs and radar have been trending a bit slower with the progression of the snow band, so adjusted POPs accordingly. At this point, still think it will be mostly trace to 2 inches, although a few spots could get as high as 3 inches with some decent snow rates reducing visibility near the international border at times.

UPDATE Issued at 953 AM CST Mon Dec 8 2025

The round of snow with the next clipper coming down out of Canada has started to enter north central ND, and will continue to move southeast through the rest of the morning and into the early afternoon. Tweaked POPs a bit to reflect current timing of radar and CAMs. At this point most of the snow amounts seem to be dusting to 2 inches, but will have to watch for heavier snow fall rates moving in and any isolated spots over 3 inches. Stronger system tomorrow will be more impactful, so for now plan to handle today's system with graphic casts and see how things develop.

UPDATE Issued at 715 AM CST Mon Dec 8 2025

The forecast remains on track this morning with light snow being observed across many areas. Most of this is forming within a low stratus deck ahead of today's system. Precipitation chances increase from west to east this morning into midday, with the best chances for accumulating snow being generally north of Highway 200 today.

..Dangerously Cold Wind Chills Possible Late This Week

A reinforcing surge of cold air pours into the region heading into Thursday and Friday, with 850mb temps ranging from -30C to -20C. Overnight lows could fall well into the teens below zero, especially where the snow pack is heaviest. This, combined with north to northwest winds, could bring wind chill values down into the range of -40F to -30F each morning Friday through Sunday. For most areas, this is likely to be the coldest air of the season thus far.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 1152 AM CST Mon Dec 8 2025

A bit of light snow or flurries reducing vis down to 2 miles at a few spots. Ceilings are mostly MVFR but a few have broken up to VFR or gone down to IFR. Some vis down to 1 mile or even lower at times is not out of the question, with IFR conditions for a while this afternoon and evening. After a bit of a break back to MVFR/VFR overnight as this first round of snow, visibility and ceilings will go down again towards the end of the period as the next round of precipitation arrives. That system will have the potential for FZRA as well as snow particularly at KDVL and KFAR, so have a mention going at those sites. Winds will be shifting around from the southeast to the west, then back to the southeast before going north with the cold front coming down. Speeds look like they will stay mostly in the 10 to 15 with gusts up to 20 kts during the TAF period, but will be ramping up quickly afterwards when they shift northwest for Tuesday afternoon.

FGF WATCHES/WARNINGS/ADVISORIES

ND...Winter Storm Watch from Tuesday morning through late Tuesday night for NDZ006>008-014>016-024-026>030-038-039-054. MN...Winter Storm Watch from Tuesday morning through late Tuesday night for MNZ001>005-007>009-013>017-022>024-027-028- 030>032.