textproduct: Pueblo

KEY MESSAGES

- Hot and dry conditions today.

- Moisture gradually increasing through the weekend into next week.

SHORT TERM /THROUGH TONIGHT/

Issued at 1238 AM MDT Thu Sep 3 2026

Upper low pressure system was currently parked just off the coast of British Columbia and Washington State, broad upper high was located over the southeastern US, and Hurricane Marie was slowly moving northwest, off the coast of the CA Baja. This scenario was producing broad southwest flow aloft across the Four Corners and CO, while some moisture was slowly being drawn up across Mexico.

Currently...Some lingering cloud cover and showers across the northwestern quadrant of CO, otherwise mostly clear skies anticipated overnight with mild minimum temps in the 40s for the high valleys, and mid 50s to mid 60s for the plains.

Today and tonight...Upper low off the Pacific NW coast moves onshore today, while the majority of the moisture being drawn northward across Mexico stays south of CO. This will provide for a hot and generally dry day across the forecast area today, with highs in the 80s for the high valleys, and 90s to near 100F across the plains. There are a few spots that may hit critical fire weather conditions this afternoon, especially those gap flow wind areas across Fremont, Pueblo and southern El Paso counties, but coverage and length of time is lacking so no highlights at this time. Some showers may sneak up into the southwestern mts and southern San Luis Valley late tonight, closer to midnight, but should remain somewhat light. Overnight lows will be very similar, with 40s to around 50F for the high valleys, and mid 50s to mid 60s for the plains.

LONG TERM /FRIDAY THROUGH WEDNESDAY/

Issued at 1238 AM MDT Thu Sep 3 2026

Friday and Saturday...Upper low center will remain over the Pacific NW both days, while the broad upper high to the east starts to amplify and ease back towards CO. Models indicate that the moisture plume across Mexico thanks to Hurricane Marie will advect into CO, leading to scattered convection over the higher terrain, and more isolated activity for portions of the plains. It will continue to be hot both days, with highs in the 80s for the high valleys, which is about 5 degrees above normal, and upper 80s to upper 90s for the plains, which is close to 10 degrees above normal.

Sunday and Monday...The Pacific NW low pressure system begins to open up and rotate a shortwave across the Great Basin and Rocky Mt region into Monday. This upper level dynamics will tap into the available moisture plume to kick off greater coverage of afternoon and evening showers and thunderstorms for all of the higher terrain and I-25 Corridor, though the greatest probability will lie along the Continental Divide. Flash flood potential for area burn scars will start to increase starting Sunday. As for temps, it will still be hot, but highs are forecast to be a few degrees cooler due to increased cloud cover and active precip.

Tuesday and Wednesday...The upper ridge to the east essentially remains in position so no real change in the pattern there. The low pressure system over the Pacific NW continues to open and dumbbell across the Intermountain West, then the trough starts to dig south across the Great Basin. If this solution holds true, moisture advection into CO increases leading to greater precip coverage and cooling temps. Stay tuned. Moore

AVIATION /18Z TAFS THROUGH 18Z FRIDAY/

Issued at 1139 AM MDT Thu Sep 3 2026

VFR conditions are expected at KALS, KCOS, and KPUB through 24 hours. Breezy winds are expected throughout this afternoon, to around 20 knots, out of the southwest at KALS and south-southeast at KCOS and KPUB. Overnight, winds will lighten and follow diurnal flow patterns, lasting through the rest of this forecast period.

PUB WATCHES/WARNINGS/ADVISORIES

None.