textproduct: Grand Junction

KEY MESSAGES

- Isolated convection is expected each afternoon with gusty outflow winds possible through Wednesday.

- Available moisture increases through the week with an uptick in convection and precipitation coverage and intensity expected Wednesday onwards. - Above normal temperatures will gradually cool closer to normal by late next week.

DISCUSSION

Issued at 1139 AM MDT Sun Aug 9 2026

Plenty of mid to high level clouds are streaming across the area at the moment as just enough moisture has managed to work underneath the high pressure. Models are indicating a weak shortwave rotating around the high, moving across the CWA this afternoon and evening, which would explain the convection that models are indicating. A few lightning strikes have already been noted along the Front Range and SW Wyoming so it's only a matter of time before convection fires for us as well. Despite the clouds, moisture does remain relatively limited today but an increase will occur later this evening and for the overnight hours. In fact, we'll stay a little above normal for this time of year with a noticeable increase from Wednesday onwards. This is corroborated by CAMs highlighting some isolated to low end scattered convection through Tuesday with more widespread showers and storms Wednesday onwards. Until Wednesday, look for gusty outflow winds as the main concern. After that, heavy rain, hail and gusty winds may all make a return though storm motion and speed will play an important role with regards to heavy rain. For outdoor enthusiasts, please pay attention to the latest forecasts towards the end of the week. High temperatures will remain about 10 degrees above more normal August values, possibly dropping to below normal towards the end of the week thanks to increased cloud cover and precip.

AVIATION /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1139 AM MDT Sun Aug 9 2026

Hazy skies will continue thanks to wildfires across the region but do not anticipate any restrictions to vis. Mid to high level clouds will stream across the area keeping VFR conditions in place. Afternoon convection is expected but do not anticipate any airfields being affected to kept out any mention in TAFs. A few higher gusts of around 20 to 25kts may also occur this afternoon.

GJT WATCHES/WARNINGS/ADVISORIES

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