textproduct: Pueblo

KEY MESSAGES

- Isolated to low-end scattered shower and thunderstorm activity today and Sunday, mainly over the eastern mountains and portions of the plains south of Highway 50.

- Better upper level support to tap available moisture starting Monday.

- Continued hot through Monday, then slightly cooler Tuesday onward.

SHORT TERM /THROUGH TONIGHT/

Issued at 1231 AM MDT Sat Sep 5 2026

Upper low pressure system remained centered over western WA and OR coastlines, broad upper high sits over he central US, and Hurricane Marie continues to chug away off the coast of the CA Baja. Broad southwest flow aloft across the Four Corners and CO persists.

Currently...A few lingering showers south of the CO border as well as along the CO/KS border, with extensive cloud cover across the southeast corner of the state. Some clearing of the nighttime sky is expected overnight, with overnight lows forecast forecast to cool to around 50F for the high valleys, and in the 60s for the plains.

Today and tonight...Not much change to the upper pattern for the next 24 hours, so a very similar day to Friday is forecast for today. So plan on isolated convection firing over the higher terrain by midday, with more scattered activity expected across the southern Sangres and along the southern border. As activity shifts to the east through the late afternoon and evening, more scattered thunderstorm activity is anticipated for the far eastern plains, near the KS border, which should linger late before dissipating around midnight. SPC has a Marginal risk for severe thunderstorms dipping down across far eastern Kiowa County, so one or two of the storms there may be strong to borderline severe with strong wind gusts 50-60 mph. Another warm day is forecast for today, with highs in the upper 70s to mid 80s for the high valleys, and upper 80s to upper 90s for the plains.

LONG TERM /SUNDAY THROUGH FRIDAY/

Issued at 1231 AM MDT Sat Sep 5 2026

Sunday...Upper low center over the Pacific NW starts to dig south across southern OR, sweeping a shortwave across the Great Basin through the day. This upper disturbance will tap into the available moisture and kick off convection across the Great Basin, in essence robbing much of precip potential from Colorado. There will still be some afternoon and evening showers and thunderstorms for the forecast area, but models are really backing off from earlier more aggressive solutions. Southwest flow aloft will still be in place, so expect another very hot day with above normal temps, with highs in the 80s for the high valleys, and 90s across the plains.

Monday...Upper low center dumbbells to the northeast across ID and MT on Monday, sweeping another shortwave across the region. This time, this feature should be moving across CO and the Rockies, tapping into the moisture and providing for more afternoon and evening convective activity. Southwest flow aloft continues, so plan on one more day of hot, above normal temps.

Tuesday through Friday...Models are having a hard time deciphering what will happen with the Pacific trough, but one thing they agree upon is shifting the upper ridge of high pressure currently over central and SE US back to the west across CO. The ridge flattens and moves overhead, effectively shutting down the strong southwest flow that has kept the area very hot, and forecast high temps slowly drop a few degrees day to day, back down to seasonal normals. Moisture trapped under the ridge will provide the fuel for daily showers and thunderstorms, but confidence is rather low on how widespread activity will be. However, area burn scars will still need to be monitored because steering flow aloft will be much lighter, leading to slower moving storms and a greater potential for increased storm total precip. Moore

AVIATION /12Z TAFS THROUGH 12Z SUNDAY/

Issued at 509 AM MDT Sat Sep 5 2026

VFR conditions at all three terminals (KALS, KCOS, KPUB) through the next 24 hours. Winds at KALS will turn southerly this afternoon near 12 kts. Winds at KCOS and KPUB will be diurnally driven through Sunday morning. Mid and high level clouds will prevail at all sites this afternoon and tonight.

PUB WATCHES/WARNINGS/ADVISORIES

None.