textproduct: Grand Forks

KEY MESSAGES

- Very cold wind chills continue through mid-day today.

- An approaching storm system will bring a wide variety of impacts to the region late Wednesday into Thursday, but details remain uncertain.

..System Wednesday night into Thursday

Still a lot of uncertainty with the exact track of the low pressure system late Wednesday and into Thursday, which will determine impacts. With warm temperatures this week, much of the blowing snow impacts will be from falling or fresh snow, and ensemble members range from nothing to 5 inches in northwestern MN. ECMWF EFI shows a strong signal for over 90th percentile wind gusts on Thursday. Confidence is good on strong cold air advection and high winds, but the question is how much snow there will be to blow. Will continue to message a potentially impactful system with a lot of uncertainties.

AVIATION /06Z TAFS THROUGH 06Z MONDAY/

Issued at 1122 PM CST Sat Dec 13 2025

VFR conditions are likely to prevail through the TAF period across eastern ND and northwest MN. Surface high pressure pushes east and increasing gradient will result in increasing southerly flow and gusty winds (20-30kt along and west of the Red River Valley in ND). These winds may result in drifting/blowing snow in open country of eastern ND Sunday afternoon, however the chance for sub-VFR visibilities are low due to limited expected coverage due to the stability/age of the current snowpack. Winds do eventually start to decrease Sunday evening, with stronger gusts dropping off. A lingering 40-45kt southwest orientated low level jet may result in low level wind shear Sunday evening, with best chances in west central MN (including KBJI).

FGF WATCHES/WARNINGS/ADVISORIES

ND...Cold Weather Advisory until noon CST today for NDZ006>008- 014>016-024-026>030-038-039-049-052>054. MN...Cold Weather Advisory until noon CST today for MNZ001>009- 013>017-022>024-027>032-040.