textproduct: Grand Junction

KEY MESSAGES

- Unseasonably mild conditions continue across the region, with highs 10-15 degrees above normal and potentially record- breaking temperatures on Monday.

- Accumulating snow is possible in the northern and central mountains late Saturday into Sunday. - Mild conditions continue next week with additional snowfall for mountain locales around 9-10,000 feet.

SHORT TERM /THROUGH SUNDAY/

Issued at 829 PM MST Fri Feb 27 2026

Ridging is dominant along the West Coast, extending northward from an area of high pressure over the Baja Peninsula, which means dry northwest flow for us. The flow aloft will gradually shift to westerly as the ridge is flattened by an approaching closed low. This transition to zonal flow will begin to advect increasing moisture, with forecast PWAT values climbing from 70-100% of normal during the day tomorrow to 170-200% of normal late tomorrow night into Sunday morning. Due to this, clouds will be on the increase through the afternoon and evening, with light orographic showers breaking out over the northern and central mountains. Any snow accumulations out of these showers will be light, and generally confined to above 9k feet. Temperatures remain unseasonably warm, with highs tracking 10-15 degrees above normal and lows running 5-10 degrees above normal.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/

Issued at 829 PM MST Fri Feb 27 2026

The moisture advection continues to spread across northeast Utah and northwest Colorado on Sunday. This will keep the chances for light snow in the northern and central mountains going most of the day. Warm temperatures will result in snow levels generally above 9000 feet. On Monday, the low pressure progresses over the Great Basin causing warm advection in our area and therefore a brief break in precipitation. Showers may start to develop late Monday in response to increased moisture and instability. High temperatures could reach record values for places that see more sun than clouds. Also, the pre-frontal gradient will lead to gusty winds. The main cold front with this wave works through Monday night and Tuesday, so expect a round of valley rain and mountain snow showers mainly above 8 kft. Showers diminish Wednesday morning and the total snowfall amounts are not that impressive. Minor impacts are possible on the mountain passes overnight and early morning. Another system could approach us from the northwest late Wednesday into Thursday bringing chances for precipitation and slightly cooler conditions.

AVIATION /12Z TAFS THROUGH 12Z SUNDAY/

Issued at 435 AM MST Sat Feb 28 2026

Skies are mostly clear, but high level clouds are beginning to move into the area. High level cloud coverage will continue to increase through the day. Winds will be light and VFR conditions will prevail.

GJT WATCHES/WARNINGS/ADVISORIES

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