textproduct: Grand Forks

KEY MESSAGES

- A brief period of moderate to heavy snow will bring a quick 1 to 3 inches across northeastern North Dakota and northwestern Minnesota this afternoon and evening.

- Very difficult travel conditions are expected Tuesday from accumulating snow and ice, blowing snow, and very strong winds. Some uncertainty in the track of the system exists, which will determine where snow transitions to freezing rain. In the snow area, expect 3-5 inches with some some areas receiving 6 or more inches of snow.

- Strong winds will come in late Tuesday into Tuesday night behind the precipitation, with gusts up to 60 mph in southeastern North Dakota. Blowing snow across portions of northeastern North Dakota and far northwestern Minnesota will bring very difficult travel conditions with low visibility in addition to ice and snow.

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

UPDATE

Issued at 650 PM CST Mon Dec 8 2025

Conditions will continue to improve as snowfall spreads east of the region. Behind this, low clouds will keep temperatures above zero for the most part, although pockets of clearing may allow drops to just below zero in northwest Minnesota. No other weather impacts are expected until the next system pushes in tomorrow morning.

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.

AVIATION /18Z TAFS THROUGH 18Z TUESDAY/

Issued at 531 PM CST Mon Dec 8 2025

Snow will continue to push eastward through the evening towards BJI, clearing out for the most part in eastern North Dakota and far northwest Minnesota. Associated with the approaching band of snow will be periodic visibility reductions to 1/2SM at times (potentially even 1/4SM), with prevailing 1-2SM. MVFR to IFR ceilings will continue to linger on the backside of this snow.

There are signals for a brief push to VFR in the Red River Valley. Confidence is low in the extent of VFR ceilings and the cutoff could be sharp so anticipate some amendments as necessary depending on how things shake out.

Looking ahead to tomorrow, conditions will deteriorate from northwest to southeast through the morning and afternoon hours. Heavy snow in northwest Minnesota and northeast North Dakota will contribute to visibility reductions to 1/4SM at times, particularly with the blowing snow accompanying it. Additionally, freezing rain is likely to develop across eastern North Dakota into west-central Minnesota, particularly impacting FAR for a long duration. Eventually, all sites will shift to primarily snow, and with the winds approaching 40-50 knots (again particularly at FAR), blowing snow should cause visibility reductions to continue to linger once falling snow ends. MVFR to IFR ceilings will also accompany this system.

FGF WATCHES/WARNINGS/ADVISORIES

ND...Winter Storm Warning from 6 AM Tuesday to 6 AM CST Wednesday for NDZ007-008-015-016-026-027-029-030-054. Winter Weather Advisory from 6 AM to 6 PM CST Tuesday for NDZ024-028-038-039-049-052-053. High Wind Warning from 6 PM Tuesday to 6 AM CST Wednesday for NDZ024-028-038-039-049-052-053. Winter Weather Advisory from 6 AM Tuesday to 6 AM CST Wednesday for NDZ006-014. MN...Winter Storm Warning from 6 AM Tuesday to 6 AM CST Wednesday for MNZ001-002-004-007-008-013>015. Winter Weather Advisory from 6 AM to 6 PM CST Tuesday for MNZ003-029. High Wind Warning from 6 PM Tuesday to 6 AM CST Wednesday for MNZ003-029. Winter Weather Advisory from noon Tuesday to 6 AM CST Wednesday for MNZ005-006-009-016-017-022>024-027-028- 030>032-040.