textproduct: Grand Forks

KEY MESSAGES

- Falling and blowing snow impacts today into this evening, particularly southeast North Dakota into west central Minnesota.

- Colder temperatures arrive behind this system with below normal temperatures into early next week.

UPDATE

Issued at 639 AM CST Tue Nov 25 2025

Radar and obs showing the heaviest snow just north of the vort center in south central ND roughly between JMS/BIS. Sfc low is moving southeast still and looks to be between Aberdeen and Huron SD. HRRR 11z run shows continued idea of heaviest snow on north and northeast edge of 500 mb low moving east thru SD, with peak snow rates a little earlier than prev written....looks to be 16z-19z period in SE ND. Issues in regards to snow amounts is that temps will remain around 30-32 degrees and thus highly variable snow accumulations from grass to concrete..though in heavier snow rates will be enough to accumulate on concrete. This area along SD border will still need to be watched for heavier snow and warning impacts. Winds will increase this aftn but snow is quite wet and heavy and outside of winds with falling snow, not expecting a big blowing snow impact once any snow ends.

..Synopsis

Water vapor at 09z shows the well defined short wave entering western SD and this will move east thru South Dakota into southern Minnesota this evening. Mesoanalysis shows weak surface low that moving southeast into southwest ND in between Bismarck and Hettinger. A new low will develop and asborb this low today and over east central SD into southern Minnesota and move east. The tighest pressure gradient with northwest winds occurs from southwest and south central ND into South Dakota and southwest MN thru this evening. Enough of a pressure gradient for gusty winds thru eastern ND/western MN as well, strongest southern valley, but this will occur as low moves more into south central MN mid to late aftn. Area of snow with this system over central into eastern ND. The snow-no snow line has been near Bottineau to Cando so far with trace amounts Cando via webcam and no snow Langdon, Rolla to Bottineau. Based on latest HRRR main snow will indeed move southeast and focus higher snowfall totals 4+ inches in southeast ND into west central MN and south into parts of SD/central MN. So overall sag south in heavier totals remains.

HREF indicate 1+ inch snow rates possible this aftn for a 3 hour time along the SD/ND border Forman, Wahpeton areas. This is area of max QPF as well and also closer to higher wind speeds in SD. Therefore this area right along SD border will need to be watched closely for warning impacts this aftn as the main snow looks to be centered around 20-23z.

North edge of snowfall will see light accumulations with mostly 1-3 inches along Hwy 2 from Devils Lake thru Grand Forks with 3-4 Bemidji...with higher south. Based on obs in Langdon, Rolla it is likely very little snow falls Grafton and north today and in far northwest MN along Manitoba border. Even Grand Forks-TRF area on the edge and may well see under an inch, but tight gradient in the area so will maintain advisory for 1-3 inch potential along Hwy 2.

System is quite progressive with snow ending most all areas before midnight.

Colder air moves in behind this system, with temperatures running below normal into early next week. Not unusually cold for this time of year, but coldest by far so far this month.

An area of snow will move southeast with an upper wave from Montana into eastern SD Friday into Friday night, with northeast edge of some light snow into southwest 1/2 of the fcst area. At this time any amounts look to be very light and impacts from this minimal.

AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/

Issued at 639 AM CST Tue Nov 25 2025

TAFs are going to be extremely variable, changeable thru the day due to vsbys in snow and ceilings, particularly true in Fargo. But also in other areas such as GFK mainly this morning. North winds increasing midday and aftn with gusts over 30 kts in east central/southeast ND and this evening west central MN (west of the trees).

FGF WATCHES/WARNINGS/ADVISORIES

ND...Winter Weather Advisory until noon CST today for NDZ006-014- 015-024-026. Winter Weather Advisory until 6 PM CST this evening for NDZ027>030-038-039-049-052-053. MN...Winter Weather Advisory until midnight CST tonight for MNZ001>003-013>017-022-023-027-029-030-040. Winter Storm Warning from noon today to midnight CST tonight for MNZ024-028-031-032.