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218 FXUS65 KBOU 250546 AFDBOU Area Forecast Discussion National Weather Service Denver/Boulder CO 1146 PM MDT Fri Apr 24 2026 .KEY MESSAGES... - Cooler, more moist weather pattern expected Saturday through Tuesday with some light precipitation expected but normal to slightly below normal temperatures and no fire weather concerns. && .DISCUSSION /Through Friday/... Issued at 1145 PM MDT Fri Apr 24 2026 A cold front pushed south across the plains earlier this evening. Dew point temperatures came up 30 degrees F in most areas behind the front. There was strong northerly upslope wind behind the front as well, with gusts as high at 40-45 knots. Upstream observations, cross sections and soundings all show shallow Stratus developing over, at least some of the plains at this time. Models have zonal flow aloft over the forecast area Saturday, then more southwesterly flow aloft by Sunday. A weakening upper trough moves across the area Sunday afternoon and night with a stronger one for late Monday night and Tuesday. The plains stay in low level upslope flow Saturday and much of Saturday night. There is a better defined cold front Sunday afternoon and again Monday morning. The upslope is in place all over the plains Sunday afternoon through Monday evening. Will leave the pops going as is Saturday and Saturday night, with the best chances, 40-70%s in the mountains. By Sunday afternoon pops will be 80-100% for all the CWA, decreasing into the 40-80% range Sunday evening. They climb back into the 60-90% range for all the CWA Monday afternoon and evening. Over the plains late day Sunday, there looks to be enough instability and decent low level moisture for late day thunderstorms. Even with all the high pops, the QPF fields show mainly light precipitation amounts through all the periods. However, the fire weather conditions look to be nominal Saturday through Tuesday for all the CWA, due to the cooler airmass in place and better moisture expected through the period. High temperatures look to be around or a tad below seasonal normals Saturday through Tuesday with readings in the mid 50s to lower 60s for most areas of the plains all four days. For the later days, Wednesday through Saturday, strong zonal flow is progged over the CWA Wednesday and Thursday. By Friday, the medium range models show weak upper level patterns and are poor agreement as well. Confidence is not great with any of the solutions. && .AVIATION /06Z TAFS through 06Z Sunday/... Issued at 1130 PM MDT Fri Apr 24 2026 A cold front pushed through the area a few hoursago bringing gusty north winds, cooler temperatures, and moisture. Low clouds are forming and will prevail overnight and most of Saturday morning with ceilings between 1,000 and 2,000 feet. The low clouds are expected to scatter out 16-18Z. Winds have decreased and will remain a north to northeast overnight, then turn easterly for Saturday afternoon and evening. East winds will increase toward 00Z, with gusts of 20 to 25 knots possible. There is a chance (~30%) for showers after 00Z with ceilings of 3000 to 6000 feet. After 06Z Sunday, low clouds are expected to settle over the area with ceilings falling below 2000 feet. && .BOU WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...66 AVIATION...12