Likely shower chances to start the work week
Sunday, June 1, 2025
Temperatures hit 81 F Saturday afternoon and 80 degrees this Sunday around noon at the Bob Adams airport in Steamboat Springs. An approaching storm will bring likely shower chances to Colorado Monday afternoon and evening and will be followed by cooler temperatures that will last through the workweek. While shower chances decrease through midweek, they increase again on Thursday as another storm approaches.
A complicated weather pattern is over Western North America as moisture from the remnants of the first tropical storm of the eastern Pacific hurricane season, Alvin, is ingested by an eddy of low pressure over Baja. Additionally, a trough of low pressure moving across the Pacific Northwest is elongating to the southwest, forcing the Baja eddy eastward, even as the southern end of the trough splits and forms another eddy of low pressure just west of Baja.
The first eddy is forecast to move across the Desert Southwest through Monday night, cooling high temperatures a few degrees on Monday and making showers likely Monday afternoon and overnight. Additionally, the northern end of the trough will begin moving across the northern Rockies, sweeping a cool front through our area Monday evening and providing a focus for the showers.
Some dry air follows the cool front for Tuesday and Wednesday, reducing the chance of afternoon and evening showers. However, the trough over the Northern Rockies is not going anywhere as it is reinforced by additional waves of energy moving across the Pacific Northwest. One of these waves may or may not dislodge the second Baja eddy northeastward and toward Colorado, with the European ECMWF keeping the eddy offshore and the American GFS moving it across Colorado Wednesday night.
High temperatures will cool around ten degrees from this weekend by Tuesday, lasting through the work week and struggling to reach our average of 72 F.
Shower chances become likely again on Thursday, perhaps as soon as the morning if the eddy moves across Colorado. The cool and showery weather may hang around after Thursday as the Northern Rockies trough stays put thanks to additional energy moving across the Pacific Northwest.
I’d say to check back on Thursday afternoon for my next regularly scheduled weather narrative, but I’m still traveling and will post when I am able. If not already a subscriber, consider signing up for free to be emailed as soon as I publish.
