textproduct: Grand Forks

KEY MESSAGES

- Gusty west winds are possible Tuesday morning through the late afternoon. Wind gusts up to 45 mph are possible.

- Winter impacts are possible Wednesday night and Thursday as a storm system brings a period of snow and strong north winds winds into the area. There is a 70 percent chance for advisory impacts, including snow and blowing snow.

..Winter impacts Wed night into Thursday

Potent 500 mb system with Pacific moisture and higher than climo PWATs moves into Washihngton state by 12z Wed and moves quickly east along the Intl border with sfc low developing and tracking along or just south of the Intl border (30%) or more just north of the border thru southern Canada (70%). The more likely track will keep heavy snow Wednesday into Wed night north of the forecast area. But as low departs to the east into southern parts of NW Ontario or far northern Minnesota Wed night, the likelihood of a strong push of sfc cold advection and mixing of 50 kts in the 925-850 mb layer increases. These winds along with some falling snow may well create travel issues. Advisory impacts are likely (70%) and warning impacts (due to blowing snow, vsby) are around 20%. Set up with low in north MN with tight pressure gradient and north winds in the valley is favorable often for potential blizzard conditions...and that will need to be looked at in more detail in the coming days.

AVIATION /06Z TAFS THROUGH 06Z TUESDAY/

Issued at 1124 PM CST Sun Dec 14 2025

VFR conditions are more likely to prevail across eastern ND through the TAF period. There were a few pockets of flurries that brought temporary/localized MVFR conditions Sunday evening, but they have moved east/dissipated. There is a higher chance for MVFR ceilings in the 09-16Z period across northwest/north central MN and a low chance for brief IFR conditions at KBJI. The axis of stratus that forms is currently expected to remain east of KGFK, but it could be close.

Surface trough and weakening surface gradient is slowly working east which could bring decreasing winds and eventually a shift to the the west-northwest. Surface high pressure then builds over the region during the day Monday resulting a period of light/variable winds once again. Eventually another low pressure system develops later in the day Monday to the west and southerly winds increase from the late afternoon through the evening (becoming breezy once again Monday night).

FGF WATCHES/WARNINGS/ADVISORIES

ND...None. MN...None.