textproduct: Grand Junction

KEY MESSAGES

- Rivers across southwest CO and southeast UT remain high due to runoff. Several flood warnings will be in effect through Tuesday morning.

- Tuesday will be dry with below normal temperatures.

- A system is expected on Wednesday into Thursday morning. It will bring valley rain and mountain snow to the area. Amounts are generally minor.

DISCUSSION

Issued at 853 PM MST Mon Nov 2 2026

Isolated snow showers are possible in the mountains overnight with minor accumulations. Other than that most locations will be dry and that continues into tomorrow. Given so much moisture and limited sun today, patchy fog is certainly possible in the favorable spots tonight. Tomorrow will be partly cloudy with temperatures 5-10 degrees below normal. This break will be short lived, as another low pressure works across the region on Wednesday. While moisture remains unimpressive with this system, a few showers and thunderstorms are expected Wednesday afternoon and overnight. Given the saturated soil there is concern for any additional rainfall. As of now the precipitation amounts are minor in comparison to the last event. Although thunderstorms could produce the rates for localized issues. We will continue to monitor this situation. The mountains should pick up another couple inches of snow too before the precipitation comes to an end Thursday morning.

Models continue to sell broad high pressure building across the region to close out the week. This should help streamflows and soils to dry out. Temperatures will remain cooler than normal, but a slight warm up is expected this weekend ahead of a potential pattern shift early next week.

AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/

Issued at 1033 PM MST Mon Nov 2 2026

Isolated showers continue to rotate southward in the wrap around moisture in this departing storm. This flow and mositure is also keeping lower clouds pinned into the mountain TAF sites with VFR passing in and out at KTEX. Expect clouds to decrease overnight which will bring in a threat of fog and/or stratus with plenty of near ground layer moisture in place. Low confidence of this occurring and only have mention at the moment and not in the prevailing forecast.

HYDROLOGY

Issued at 853 PM MST Mon Nov 2 2026

Many rivers across southwest Colorado remain above flood stage. As these crests work downstream water levels will receded at some locations and rise at others. Most of the rivers in Colorado will be out of flood stage in the next 24 hours. All of this water will eventually move down the San Juan river in Utah. This portion of the river is expected to be above flood stage Wednesday and Thursday.

GJT WATCHES/WARNINGS/ADVISORIES

CO...Winter Weather Advisory until midnight MST tonight for COZ004. UT...None.