textproduct: Pueblo

KEY MESSAGES

- Above normal temperatures forecast through early next week.

- Isolated afternoon showers and thunderstorms over the higher terrain again on Friday, then increase in coverage starting Saturday.

- Active weather returns to the region starting Sunday, lasting into next week.

SHORT TERM /THROUGH FRIDAY/

Issued at 154 PM MDT Thu Oct 8 2026

Relatively quiet this afternoon with precip development staying rather isolated at this time. Lacking support with limited moisture and instability will help keep this trend through much of the afternoon. Low/Mid level troughing across the Continental Divide should be enough to support at isolated coverage in these areas though. Weak upper trough swings through on Friday, but again, limited moisture and instability will help keep precip isolated over the higher terrain.

Will see conditions cool tonight, especially across the San Luis Valley. Given trends over the last couple of mornings and with a higher likelihood of cooler temps, did lower mins to the mid 30s across the valley. With higher confidence of this occurrence, have issued a Frost Advisory for the Valley from 2 AM to 9 AM MDT. Temperatures quickly warm up to above normal values once again on Friday.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/

Issued at 1232 AM MDT Thu Oct 8 2026

Saturday...Big changes in the upper pattern start to take place Saturday, as the Pacific low pressure trough digs even further south and absorbs the remnants of Hurricane Rachel. Deep southwest flow aloft develops across the Four Corners, feeding this moisture into western CO and dramatically increasing precipitation chances and coverage starting in the afternoon and lasting through the night. Meanwhile, Tropical Storm Simon starts to push north along the Mexico coastline. Forecast QPF totals through Saturday total to around .4 to .5 of an inch across the southwest mts, while the rest of the Divide receives lesser amounts. While the high valleys will cool a couple degrees due to increasing cloud cover and precip chances, the eastern plains will remain hot. Look for highs in the 60s to around 70F for the high valleys, and 80s to near 90F once again for the plains.

Sunday and Monday...Strong Pacific low system stays anchored along the CA coast both days, keeping strong southwest flow aloft over the Four Corners. The remnants of Simon slide north along the Mexico coastline and eventually get absorbed with the flow aloft and pushed into CO, continuing rainfall across all of the higher terrain but mainly focusing along the Continental Divide and the southern mts. Forecast QPF for the sw mts for both days equals to around an inch and a half of additional water, so a Flash Flood Watch may need to be considered on following shifts if the models remain consistent. As for temps, high valleys will see highs in the 60s both days which is right around seasonal normals, while the plains remain hot and above normal. A cold front late Monday evening across the eastern plains will bring a change to that, starting Tuesday.

Tuesday and Wednesday...A very active weather pattern through mid week, as the upper low finally moves onshore across CA and NV on Tue, then across CO on Wed. This path will bring widespread precip chances to all of the forecast area on Tue, and possibly through Wed. Look for significantly cooler temps as well, as the cold front late Mon evening combines with extensive cloud cover and ongoing precipitation. High temps both days will likely be in the 60s for the high valleys, and 60s to around 70F for the plains. Tue and Wed will be the time period for some snow across the mts as well, as snow levels finally begin to lower. Moore

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/

Issued at 1114 AM MDT Thu Oct 8 2026

VFR conditions and dry weather are expected at all TAF sites this period. Any shower or thunderstorm development this afternoon should stay away from the terminals. A period of gustier winds are likely at both COS and PUB this afternoon. Outside of this period, winds will be light and diurnally driven.

PUB WATCHES/WARNINGS/ADVISORIES

Frost Advisory from 2 AM to 9 AM MDT Friday for COZ069>071.