textproduct: Grand Forks

KEY MESSAGES

- Snow will taper off through the evening hours. There is a 50% chance for freezing drizzle through Wednesday morning, but its coverage remains uncertain.

- A warmer pattern fro the rest of the week will bring periods of fog.

..Warmer with Fog

With warmer air advecting in over a still cold snowpack, fog will become a problem through the rest of the week. Thursday morning in particular could be a day for more widespread fog as a stronger push of WAA works into the region. Of course, fog will play a critical role in high temperature forecasts. On the flip side, the March sun angle is much higher, which should burn off fog faster then when we see these same types of patterns set up in November, December or February. A reasonable expectation through Saturday is that there will be fog somewhere within the FA every morning. As for who, how long it lasts, or how widespread it becomes, those pieces of the puzzle are all more uncertain.

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

Issued at 1231 PM CDT Tue Mar 17 2026

Snow has overspread much of the region as of midday, bringing IFR to brief, occasional LIFR visibilities. Visibilities will generally remain IFR through the mid afternoon, and slowly improve this evening into tonight as snow ends. Ceilings of IFR to MVFR will also continue, however visibilities will drive categories through at least midnight. Overnight, there is a low chance for FZDZ, but at this time predictability is too low to put it into any TAFs. If FZDZ occurs, visibilities may also be a bit lower then the current TAFs show. Ceilings and visibilities will all improve late in the TAF period, into Wednesday afternoon just after this TAF period.

FGF WATCHES/WARNINGS/ADVISORIES

ND...Winter Weather Advisory until 7 PM CDT this evening for NDZ007- 008-016-026-027-029-030-054. MN...Winter Weather Advisory until 7 PM CDT this evening for MNZ001- 002-004-007.