Another very warm, sunny day (Friday) with variable high clouds and light backing SW winds. We’ll see a warm night with increasing SSW winds (30-40 MPH gusts) Saturday in advance of a large low pressure trough moving down the coast from the Pacific NW. The deepening trough is in response to a strong Jet pushing…
A surface high will dominate western Colorado today and a broad upper level ridge of high pressure begins to flatten as a trough along the Pacific NW deepens. SW winds and high clouds will invade Tuesday with above normal temperatures and breezy conditions. The trough comes onshore tonight, digging into Nevada on Tuesday bringing strong…
Today, but especially this afternoon northerly orographic flow will increase on the north side of the San Juan mountains. Ouray and the Uncompahgre Gorge could see a significant precipation event bringing a good shot of snow. The back side of the trough with a wind direction change from WSW to NW will push into this…
As this system moves east the back side of the trough winds will gradually shift from SW to WNW with tightening pressure gradients in the surface low. This storm is still affecting the north San Juans, but will be moving out soon with residual snow falling in the mountains tonight, then a short lived ridge…
The latest storm to affect the San Juan Mountains is taking form in the Pacific NW this morning and has begun pushing clouds into northern Colorado. A fast moving shortwave impulse on NW flow will move across the Great Basin tonight and Friday with deepening moisture bringing some snowfall (3-6″ maybe more…, above 11,000′) to…
My last forecast posted 2 days go ended with the conundrum of three computer models lacking agreement in solution. Now with the clarity of the immediate future it looks like the last model that called for a split flow, combined with the first model which called for snow beginning tonight has become today’s forecast. By…
The strong mountains winds recently forecasted didn’t materialize except at very high elevations above 15,000′ because of a warm/stable air mass the past few days. The next disturbance moving into our mountains began moving into Washington/Oregon today. It looks to weaken in it’s approach so we may only see the possibility (30-40 %) of light…
Tuesday January 17, 2012–11:30 Our latest storm played out as expected with up to 14″ in various locations. Clear skies and high winds (polar jet) will dominate for the next few days redistributing the new snow, setting on a weak snowpack into fresh slabs waiting for a trigger. Wind averages could be in the 30-40mph…
Friday, January 13, 2012—15:00 A change in the weather looks immanent. Two vigorous storm systems will be approaching Colorado on Sunday with clouds increasing from the SW throughout the day. The persistent high pressure dome begins to break down as the subtropical jet pushes a closed low off the California coast which opens into a…
Friday is a transition day of cooling temperatures and high clouds moving into the area. The first snowfall in a long while is due to arrive Saturday evening in the San Juan Mountains. The ridge of high pressure that has been parked in our backyard forever is beginning to flatten and is pushing southwest as…
