Wet start to the workweek
Sunday, September 27, 2026
Temperatures are in the comfortable low 70s with mostly sunny skies this Sunday at noon in Steamboat Springs. An approaching complex storm will start the workweek with wet, cool weather, though it is not yet clear how cold it will be, or whether showers stick around through midweek. Warmer, drier weather will end the workweek and is forecast to last through at least next weekend.
A trough of low pressure approaching the West Coast has split, a recent development since my Thursday weather narrative, weakening and warming the storm. While former hurricane and now Tropical Storm Odalys has injected moisture into the southwest winds ahead of the trough as forecast, the further-south track has created more opportunity for Hurricane Polo, forecast to cross the southern Baja Peninsula on Monday, to interact with the former Gulf of Alaska storm on Tuesday.
While we will still see increasing clouds later today and a small chance of showers through the night, better moisture is ahead of and behind a cool front arriving during the day Monday. Showers become likely with high temperatures mired in the low-60s, below our 68-degree average.
However, the split storm now means warmer temperatures, making snowflakes at the top of the Steamboat Ski Resort unlikely.
More wet weather is possible Tuesday, with mid-60-degree high temperatures, as the trough and storm Polo interact over the Desert Southwest and likely merge in some way. A merger further south, favored by the European ECMWF, may reduce shower chances compared to the American weather forecast models.
Our Wednesday weather will heavily depend on this merger, with the position and track of the merged storm uncertain. The latest American NAM, a forecast running out to 3 days, now has the merged storm moving across southern Colorado during the day, a big change from its earlier forecast, resulting in possibly heavy rain for southern Colorado and even our area depending on its northern reach.
Whether the shower chances extend into Thursday depends entirely on the track and speed of the merged storm, with the latest European model now forecasting a slower storm for a showery Thursday.
The weather forecast models agree the merged storm will finally move east of the Divide by the end of the workweek, bringing dry and warm weather with temperatures back to the low-70s that looks to extend through next weekend. So get out and enjoy the changing fall colors today, peaking at and above 9,000′ as indicated by the photo I captured from the Steamboat Ski Resort on Saturday. I’ll have more details about next weekend in my next regularly scheduled weather narrative on Thursday afternoon.
Shower chances to bookend a nice weekend
Thursday, September 24, 2026
Filtered sunshine and temperatures right at our 70-degree average are over Steamboat Springs this Thursday mid-afternoon. Monsoonal moisture will bring a chance of showers this afternoon and again through Friday morning before a cool front sweeps it eastward in the afternoon for a beautiful first weekend of fall. But showers return on Monday, with perhaps our first dusting of snow at the top of the Steamboat Ski Resort on Tuesday morning.
Monsoonal moisture will continue to be drawn northward over our area through Friday morning by winds between a storm approaching the Pacific Northwest and high pressure extending from Texas northeastward across the Great Plains. A wave traveling northward around the backside of the high pressure will bring good chances of early morning showers on Friday, lingering until around noon as the Pacific Northwest storm crosses the coast and sends a cool front our way.
While the Pacific Northwest storm will rotate into Alberta by Saturday, forced eastward by another developing and cold storm in the Gulf of Alaska, westerly breezes behind the cool front will clear the monsoonal moisture eastward, ending showers by Friday afternoon.
This sets the stage for a gorgeous first Saturday of fall, with mostly sunny skies and temperatures in the low-seventies. Expect more of the same for Sunday, except for increasing afternoon clouds ahead of a very interesting start to the workweek.
Our weather will be influenced not only by the approaching Gulf of Alaska storm, but by two hurricanes: Hurricane Polo, located about 100 miles offshore of southwestern Mexico, and Hurricane Odalys, located well west-southwest of the southern tip of Baja California.
Moisture from Odalys will be the first to reach our area starting later Sunday, as it is drawn northeastward by the winds ahead of the approaching cold storm forecast to cross the central California coast Sunday night. Shower chances increase dramatically on Monday as Polo moves toward the Baja coast, injecting copious moisture into the southwest winds ahead of the approaching cold storm and bringing a wet start to the workweek.
The storm is forecast to cross the Great Basin on Monday, bringing our first true cold front of the season during the day. Snow levels are forecast to drop to mountain-top levels on Tuesday morning, possibly bringing the first snows of the season to the top of the Steamboat Ski Resort.
However, unsurprisingly, there is a lot of uncertainty due to so many moving parts. So enjoy what should be a quintessential Colorado fall weekend, and look forward to the meteorologically exciting start to the workweek when a polar front interacts with two tropical systems. I’ll have the latest details about that in my next regularly scheduled weather narrative on Sunday afternoon.
Pleasant workweek with a chance of showers heading into midweek
Sunday, September 20, 2026
Skies have turned mostly sunny this Sunday at noon in Steamboat Springs with temperatures in the upper-50s, after impressively persistent storms brought rainfall from Wednesday evening to Saturday night. Much quieter weather begins today and lasts through the workweek, with clouds and possibly brief showers from later Tuesday into Wednesday morning, right around the autumnal equinox, which occurs at 6:04 pm on Tuesday.
Official records from the long-term weather station behind the high school show 1.46” of rain from Wednesday afternoon to 7 am Saturday, and I measured another third of an inch through the day near the Steamboat Ski Resort, likely bringing the monthly total so far to around 2”, already near the 2.32 monthly average. This was after a relatively wet August bringing 2.77” of rain, almost an inch above the 1.8” average.
The rain was courtesy of a healthy plume of monsoonal moisture rotating northward between high pressure over the Southeast and an eddy of low pressure, now in Wyoming, that lumbered across the Great Basin. Westerly winds behind the storm have swept the monsoonal moisture eastward and brought cooler temperatures today, with high temperatures in the mid-60s, below our average of 72 degrees.
A weak area of low pressure is forecast to cross southern California on Monday while a ridge of high pressure builds over Texas behind the Wyoming storm. The building ridge will deflect the eddy across the Great Basin on Tuesday, even as it shears and weakens, leaving some behind in southern California. As what remains of the eddy moves into Wyoming on Wednesday, we may see brief showers from later Tuesday into Wednesday morning as another round of monsoonal moisture is drawn northward between the low and high pressure systems.
Another pulse of monsoonal moisture is possible on Thursday as a relatively well-defined lobe of energy is drawn northward around the Texas high pressure. Meanwhile, a storm is forecast to develop in the Gulf of Alaska by midweek and cross the Pacific Northwest coast near the end of the workweek before being deflected to the northeast as the Texas ridge builds into the Great Plains.
While the storm will be well to our west and eventually north, westerly winds associated with the storm are forecast to push the monsoonal moisture plume to our east, resulting in a nice weekend. But that may not last, as another Pacific Northwest storm develops and perhaps interacts with a forecast hurricane approaching Baja after the weekend.
So enjoy a pleasant workweek while we dry out from the recent rains, and I’ll have the latest weekend details in my next regularly scheduled weather narrative on Thursday afternoon.
Showers to last through Saturday and be followed by a cool Sunday
Thursday, September 17, 2026
After a rainy start to this Thursday in Steamboat Springs, following a rainy Wednesday morning, some sun is peeking out late this afternoon. The monsoonal moisture now overhead will stick around through Saturday night, bringing another couple of showery days before an approaching but grazing storm brings drier, cooler air on Sunday.
Clockwise winds rotating around high pressure over the Southeast have conspired with the southwesterly winds ahead of an eddy of low pressure over northern California and Oregon, bringing deep monsoonal moisture to our area. Rainfall over 2 days ranges from three-quarters of an inch to almost an inch around town, with more, possibly heavy rainfall expected through Saturday night as the eddy moves across the Great Basin on Friday and Saturday, grazing our area with a cool front on Sunday.
Showers on Friday will probably hold off until the afternoon, but will likely continue overnight and into Saturday morning as energy ahead of the eddy forces the monsoon air mass upward.
By Saturday afternoon, monsoonal moisture will decrease as it is swept northward ahead of the advancing eddy in Idaho, but increasing storm energy will bring continued rainfall chances, still possibly heavy at times, lasting into the night.
The eddy is forecast to move into Wyoming on Sunday, bringing a cool front Sunday and likely keeping the high temperature in the 60s, below our 77-degree average. We may see some sun by the afternoon as drier air encroaches from the west behind the front, with current forecasts calling for a mostly sunny Monday with high temperatures in the comfortable lower 70s.
The break in the unsettled weather may be short-lived as a weak Pacific disturbance crosses the southern California coast on Monday and travels across the Great Basin on Tuesday, possibly bringing more weather to our area by later Tuesday.
So relish this stretch of rainy weather, as it has been relatively uncommon, and I’ll have more information on the incoming storm in my next regularly scheduled weather narrative on Sunday afternoon.
Cool fronts to bring a showery workweek with mid-70 degree temperatures
Sunday, September 13, 2026
Some quick-hitting showers moved through Steamboat Springs earlier on this Sunday, though temperatures are still in the low-80s this mid-afternoon. Today will be our last day in the 80s this week as a couple of cool fronts conspire with monsoonal moisture to start likely rain showers tonight. Showers will continue intermittently through at least the workweek as a new storm settles over the Pacific Northwest.
A storm currently in the Pacific Northwest is on the move, pushed eastward by a developing storm rounding a ridge of high pressure in the Gulf of Alaska. The first storm will move into Idaho tonight and Montana by Monday, bringing snowflakes to the Tetons and higher elevations of Idaho and Montana.
The southwest winds ahead of the storm will conspire with monsoonal moisture drawn northward by the clockwise winds around high pressure over the Southeast. Storm energy will extend far enough south to bring good chances of storms, possibly strong, tonight, as a cool front passes through.
Some showers may persist into Monday morning, with a break during the day before they redevelop later in the afternoon, with some snowflakes possible in the 14′ers to our south. High temperatures will fall into the low-70s, just below our 75-degree average, and stay there for the rest of the workweek.
A trailing cool front late in the day Monday will reinvigorate the showers, with snow levels falling to around 13,000′ by the evening. Showers will taper off Monday night, with some showers possible Tuesday afternoon.
Meanwhile, the next storm is forecast to mix with some cool air from western Canada as it heads to the Pacific Northwest on Tuesday, forming an eddy just off the California-Oregon coast by Wednesday.
Southwest winds ahead of the new storm will continue to carry monsoonal moisture rotating around the Southeast high overhead, leading to possible showers on Wednesday. A barely discernible wave rotating around the high may enhance showers around Wednesday evening, with a stronger wave possible for later Thursday.
The eddy may begin moving eastward near the end of the workweek, keeping the unsettled weather going into the weekend. However, weather forecast models have a notoriously difficult time forecasting the track and timing of eddies cut off from the jet stream, so that prognostication is very uncertain.
Let’s hope for beneficial rains during the last week of our summer, and I’ll have more details about whether the unsettled weather extends into next weekend in my next regularly scheduled weather narrative on Thursday afternoon.
