textproduct: Grand Junction

KEY MESSAGES

- Chances for showers in the mountains continue through mid next week.

- Temperatures cool back to normal on Tuesday and Wednesday, but warm up again late in the week.

- Precipitation chances increase for the valleys late tomorrow into early next week.

DISCUSSION

Issued at 1049 PM MDT Sat May 2 2026

Flow around a low pressure system spinning off of the coast of California will transport moisture into our region beginning tomorrow. The highest PWAT anomalies are not expected until overnight Sunday into Monday. So, not much moisture will be present during the afternoon tomorrow, and thus afternoon convection will be limited. However, a few isolated showers, mostly over the southern mountains, are possible during the afternoon hours. A narrow band of vorticity looks to pass through the CWA Sunday evening through Monday morning, which should provide lift for some showers overnight. These showers will mostly be over the higher terrain, and could include light snow at the highest peaks.

The low pressure system off of the coast of California looks to slowly make its way across the West early this upcoming week, reaching our CWA by midweek. Lingering moisture and increased instability will allow for scattered showers and storms through late in the week. High elevation snow is possible with the moisture early and mid this week, especially during the colder overnight hours, but there's still a bit of uncertainty between GFS ENS and ECMWF Ens members regarding potential snow totals. The passage of the system will drop temperatures to below normal on Tuesday and Wednesday, but will warm back up to above normal late in the week.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 527 AM MDT Sun May 3 2026

High clouds will continue to increase as the day progresses though with few to scattered becoming scattered to broken. Despite these clouds, VFR conditions will remain in place. A few showers will be possible towards the end of the TAF period as a weak disturbance moves in from the southwest. KTEX and KDRO may see a shower as it moves through. Some gusty winds of around 20 to 25 kts will also be possible this afternoon.

GJT WATCHES/WARNINGS/ADVISORIES

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