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224 FXUS65 KBOU 070654 AFDBOU Area Forecast Discussion National Weather Service Denver/Boulder CO 1254 AM MDT Fri Aug 7 2026 .KEY MESSAGES... - Elevated to locally critical fire weather conditions possible across the mountains and high valleys through the weekend. - Hot this weekend with highs reaching 95 to 105 across northeast Colorado. A Heat Advisory has been issued for the Denver metro Saturday. - Precipitation chances increase towards midweek next week. && .DISCUSSION /Through Thursday/... Issued at 1254 AM MDT Fri Aug 7 2026 An upper level high will be centered over the southwest part of the country through Sunday. This will result in west-northwest flow aloft across north central and northeast Colorado. This pattern will keep wildfire smoke in the area for the foreseeable future. For today, cross sections show a very dry airmass with clear skies in place through the morning. High-based cumulus clouds will develop this afternoon and then drift eastward. Temperatures at 700mb are very close to yesterday`s, so expect high temperatures similar to yesterday with mid to upper 90s across the urban corridorand northeast plains. Airmass warms a little Saturday, thus high temperatures will be warmer, rangingfrom 97 to 105 across the urban corridor and northeast plains. Winds will pick up over north central Colorado during the afternoon, with gusts around 25 mph, which will elevate the fire danger. Some moisture is able to infiltrate the upper level high overhead Sunday, pushing precipitable water valuesclose to normal over the higher terrain. This is expected to lead to isolated to scattered afternoon thunderstorms. The storms will have difficulty surviving off the higher terrain, so will keep the mention of showers/storms west of I-25. Temperatures take a small step back Sunday due to the increase in moisture and clouds. Very warm temperatures are expected to continue Monday and Tuesday. The ridge will weaken slightly and drift south a little. Temperatures won`t be as hot but highs are still expected to be in the mid to upper 90s across northeast Colorado. Moisture will continue to slowly increase with isolated to scattered thunderstorms expected each day. Best moisture will be over the higher terrain and the bulk of the showers/storms will be found there. Not much change from the GFS and ECMWF over the past 24 hours. The GFS shows the ridge remaining in place with warmer temperatures and limited monsoonal moisture. The ECMWF weakens the high and shows it sliding off to the southeast, which would bring better monsoonal moisture beginning Wednesday. && .AVIATION /06Z TAFS through 06Z Saturday/... Issued at 1254 AM MDT Fri Aug 7 2026 Clear to mostly clear skies will continue through 18Z Friday. After this, high-based cumulus clouds are expected to form over the higher terrain and then track eastward. Smoke will linger again today, possibly reducing approach slantwise visibility.Winds will be from the south through 12Z, with gusts up to 20 knots. Winds then weaken and begin their diurnal clockwise turn. Light and variable winds are expected mid to late Friday morning and will then settle northeast after 18Z. && .BOU WATCHES/WARNINGS/ADVISORIES... Heat Advisory from 11 AM to 8 PM MDT Saturday for COZ039-040. && $$ DISCUSSION...12 AVIATION...12