textproduct: Grand Junction

KEY MESSAGES

- Snow showers are possible in the northern mountains through the week. The probability of 6+ inches of snow is around 60 percent across the high peaks of the Park Range late Tuesday into Thursday.

- A general warming trend is expected, but the snow covered mountains valleys will see cold inversions set up overnight lasting through the days.

SHORT TERM /THROUGH WEDNESDAY NIGHT/

Issued at 114 PM MST Mon Dec 8 2025

Northwest flow with mild temperatures is the theme this week. A strong jet aloft is expected to advect a modest plume of moisture into the Northern Rockies over the next several days. Our area will be located on the southern edge of that plume. Therefore at times it may bring snow showers to the northern mountains starting late tonight through Wednesday. It will only bring passing clouds to the rest of the area. This air mass will be mild therefore snow levels will range from 7.5-8.5 kft. The amount of precipitation has varied each forecast cycle, but the overall trend has been downward and perhaps steady at this point. The Park Range looks to get a majority of the snow with the Elkheads, Flat Tops and Gore Range getting minor amounts. There is also quite a range of snowfall (0-20") from the bottom of the Parks to the top. The central and southern mountains could see periods of flurries with little to no accumulation. Temperatures for the next few days look to be 5-15 degrees above normal.

LONG TERM /THURSDAY THROUGH MONDAY/

Issued at 114 PM MST Mon Dec 8 2025

Upper level ridging drives the extended forecast. Late in the week high pressure will build over the Intermountain West leading to warming temperatures and little, if any, chance for precipitation Thursday through Sunday. If the forecast holds as is, much of the area will see multiple days of high temperatures 15-20 degrees above normal for mid-December.

AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/

Issued at 914 PM MST Mon Dec 8 2025

High clouds continue to filter over the area, but will remain above any breakpoints. VFR conditions will prevail through the next 24 hours for all terminals, expect KHDN. At KHDN, VFR conditions will prevail through 18z tomorrow, then will see periods of MVFR to IFR develop as rain and snow showers fill in. Ceilings will approach breakpoints at times. For remaining terminals, ceilings will lower and become broken to overcast by 00z tomorrow evening, but will remain above any breakpoints. Winds will be light and terrain driven.

GJT WATCHES/WARNINGS/ADVISORIES

CO...None. UT...None.