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927 FXUS65 KBOU 130534 AFDBOU Area Forecast Discussion National Weather Service Denver/Boulder CO 1134 PM MDT Tue May 12 2026 .KEY MESSAGES... - Summerlike warmth with dry weather this week, with highs in the 80s for the lower elevations Wednesday through Sunday. A few highs in the 90s possible Wednesday across the urban corridor. - A few afternoon showers possible today through Friday, mainly across the Front Range mountains and foothills. Wednesday will have the best coverage with a few late afternoon storms possible. - Elevated fire weather conditions will develop across the far eastern plains of Colorado on Wednesday. Another round of elevated fire weather conditions possible for portions of the plains, especially the Cheyenne Ridge, and South Park on Thursday. && .DISCUSSION /Through Tuesday/... Issued at 148 PM MDT Tue May 12 2026 Today is quite the pleasant weather day with mostly sunny skies, light winds, and temperatures in the low 70s across the plains. Besides a weak shower or two with breezy winds across the higher terrain, there are no weather concerns. An upper level ridge will move just east of Colorado on Wednesday as a trough moves into Idaho. The southwest flow aloft will create the conditions for compressional warming in our forecast area tomorrow due to subsidence. Denver has a 60% chance to reach 90 degrees tomorrow which would tie the record high set in 1915. The main concern for tomorrow will be elevated fire weather conditions across the eastern plains. Strengthening lee cyclogenesis will be in place over northeast Colorado resulting in moderate southerly winds (sustained 15-20 mph with gusts up to 35 mph) mainly along and east of a line from Limon to Sterling. With south winds, there will be weak moist air advection with dew points in the upper 30s forecast across the eastern plains. This moisture will keep minimum relative humidity values around 20 percent and above. Therefore, critical fire weather conditions are not forecast but elevated conditions will exist east of a line from Limon to Sterling. The shortwave trough will then pass well to the north of Colorado on Thursday. A weak cold front will pass through Colorado Thursday afternoon which will decrease humidity. Some gusts up to 30 mph are possible in the northern foothills and across the plains by the Cheyenne Ridge. This will lead to elevated to potentially critical fire weather conditions in those areas. Elevated fire weather conditions may exist in South Park and across the Palmer Divide as well. Otherwise, it will be another warm day with temperatures in the mid to upper 80s across the plains. There will be pleasant weather conditions on Friday with above normal temperatures and mostly sunny skies. A trough will begin to develop over the western US on Saturday and will approach Colorado late Sunday into Monday. Lee cyclogenesis will develop across northeast Colorado on Saturday with southeast winds across the plains. This may bring in enough moisture for a few thunderstorms to develop across the eastern plains during the evening. On Sunday, the cyclogenesis will intensify and depending on where the center of the low pressure system develops, there could be fire weather concerns. Sunday night into Monday morning, a strong cold front will move across our forecast area bringing a chance of rain to lower elevations and snow the higher elevations. && .AVIATION /06Z TAFS through 06Z Thursday/... Issued at 1128 PM MDT Tue May 12 2026 VFR conditions expected through the TAF period. Drainage flow is currently taking place at all terminals, with speeds ranging 12-17 kts. A few gusts up to 20 kts is possible for DEN and APA, however they will be brief and far in between. Lighter (