National Weather Service Forecast Discussion |
Thornton Weather Forecast Today's Forecast Story |
835 FXUS65 KBOU 280649 AFDBOU Area Forecast Discussion National Weather Service Denver/Boulder CO 1149 PM MST Fri Feb 27 2026 .KEY MESSAGES... - Elevated to critical fire weather again on Saturday. - Cooler temperatures and multiple chances for mountain snow Sunday into next week. - Potential for rain across the plains and I-25 corridor (>40% chance) late Monday into Wednesday. && .DISCUSSION /Through Friday/... Issued at 1121 PM MST Fri Feb 27 2026 We have one more day of really dry conditions with areas of critical fire weather conditions before we get a reprieve. RHs will bottom out in the single digits and low teens across the plains on Saturday. Winds are expected to be a bit weaker on Saturday than what we saw on Friday for much of the area, with the stronger winds staying near the WY/CO border and much weaker winds in the urban corridor (potentially even a weak east wind thanks to an anticyclonic circulation). A weak front will push in from the northeast late Saturday into early Sunday. Breezy NE/E winds are expected along and behind the front overnight, with gusts around 20 to 35 mph across the eastern half of our forecast area. By Sunday morning winds will be more SSE, remaining breezy for the eastern half of the area. For areas further west on the plains models are hinting at a Denver cyclone developing, giving areas around the urban corridor light and variable winds throughout the day. Over the next week, we`re looking at the potential for three separate precipitation events for the mountains and two for the plains. The first will start late Saturday, continuing into late Sunday/early Monday. Moisture will stream into the mountains at mid and upper levels Saturday into Sunday. This combined with weak QG ascent, orographics, and maybe some weak lift from the right exit of the jet will produce light snow showers late this weekend. Snow should primarily be confined to the northern mountains, with most likely snow totals between 1 and 6 inches at the higher elevations. It is worth noting, that it will be warm and snow levels will be around 9000ft in the afternoon. Which means areas below 9000ft in the mountains could see a rain snow mix or even just light rain on Sunday. The second event will start sometime late Monday for the mountains/ early Tuesday for the plains, ending late Tuesday into early Wednesday. An upper level low will form off the West Coast late this weekend. This low will move towards Colorado for the first few days of the week, moving over the area Tuesday afternoon. Ahead of this low, we`ll see strong QG lift and PWATs increasing to 200+ percent of normal for both the mountains and plains. Looking at model soundings, they`re showing a saturated column with decent lapse rates, so there is potential for some pockets of heavier snow/rain. In the mountains we`re looking at most likely snow totals around 3 to 11 inches for the Front Range and Park Range. In the I-25 corridor and plains, conditions look too warm for snow accumulation. But, there is a low chance (