Thursday, November 14, 2019
Another seasonably warm and sunny day is gracing the Steamboat Springs area this Thursday afternoon, with the current temperature of 49 F seven degrees above our average of 42 F. Similar weather is expected for the upcoming week, briefly interrupted later Saturday with a slight chance of precipitation. However chances for precipitation become much greater starting midweek.
The ridge of high pressure that has taken up residence over the West Coast these past two weeks is finally on the move, thanks to an incoming Pacific storm system that strengthened in the Gulf of Alaska. We’ll see another warm and mostly sunny day on Friday before clouds increase for Saturday ahead of the storm that is forecast to pass over our area during the day.
As alluded to in last Sunday’s weather narrative, the storm will split with some energy dropping into the Baja area and the bulk of the storm traveling across the northern Rockies and grazing us on Saturday. The best chance of snow showers will be during the day Saturday at the higher elevations when the cold front passes, with meager accumulations around an inch at best. There may be raindrops in town, though the cool air behind the front should turn any liquid into snowflakes by later in the day along with breezy northwest winds.
The sun will return for Sunday, though we may see some increasing clouds later in the day as a weak impulse in the northwest flow passes by.
After a chilly start to Monday morning, more sunny skies and a warming airmass should allow temperatures to once again reach around five to ten degrees above average which will persist through most of Tuesday.
Meanwhile, another Pacific storm drops southward along the West Coast by midweek and forces the loitering storm around Baja northeastward and toward or over our area around midweek. Weather forecast models always struggle with identifying the track and strength of these interacting storms, especially when they are cut off from the main jet stream, but currently it looks like a good chance of warm precipitation around midweek or soon after, followed by a better chance for snow around the end of the work week as the stronger and colder upstream storm is forecast to move near or over our area.
Sunday, November 10, 2019
After another sunny bluebird morning in Steamboat Springs, clouds have overspread northern Colorado in advance of a grazing storm that will be mainly felt in areas to our east. There will be a chance of some light snow showers tonight and early Veterans Day morning, especially at the higher elevations before dry weather is forecast for the rest of the upcoming week.
A persistent ridge of high pressure over the West Coast has been deflecting incoming Pacific weather systems around our area for the last week. However, the storm currently on our doorstep has managed a far-enough-west trajectory to bring the chance of some snow showers tonight and early Monday morning, especially at the higher elevations.
While the main effects of the storm will be felt east of our area, including the Front Range, we will see high temperatures on Monday five to ten degrees below our average of 46 F, even with some afternoon sun. A chilly start to Tuesday morning follows as the clear skies and light winds allow temperatures to drop ten to 15 degrees below our average of 19 F.
Sunny skies will be the rule through the work, with temperatures around average on Tuesday bouncing back to five to ten degrees above average for the rest of the work week, despite another grazing storm later Wednesday that looks to have very little effect on our weather.
A strong storm is forecast to develop in the Gulf of Alaska midweek, and weather forecast models agree that this may be the beginning of a hemispheric pattern change that will deamplify or remove the West Coast ridge of high pressure and allow Pacific storms to propagate inland.
Forecasts are always uncertain during major pattern changes such as this, but currently the storm is likely to split to some degree as it crosses the West Coast early in the weekend (as forecast by the American GFS last week). There is disagreement on how much energy is partitioned in the northern and southern parts of the split, though the weather will likely remain dry over the weekend with this initial storm. That does look to change soon after the following work week starts as additional storms are forecast to move inland and possibly pass near or over our area.
Thursday, November 7, 2019
The sunny skies and seasonably warm temperatures observed in Steamboat Springs this week will continue for the upcoming week, save for a couple of grazing storms that will bring clouds and cooler temperatures for Monday and later Wednesday.
The benign weather is due to a large and stable ridge of high pressure over the West Coast which extends across Alaska and into Siberia. An incoming Pacific storm will travel through the West Coast ridge this weekend and mix with some cold air from the Canadian Plains as it sinks toward the Midwest, grazing our area late Sunday or early Monday and briefly interrupting the current gorgeous late-fall weather.
The Rocky Mountains will divert moisture and most of the cold air to the Front Range and areas east, but we will see some clouds and a cool down on Veterans Day from the recent five to ten degrees above our average of 47 F to five to ten degrees below. There will also be a small chance of some high elevations snow showers.
While the sun should return on Tuesday, temperatures will increase toward average even as the morning starts chilly.
Another grazing storm is forecast for later Wednesday, and though it won’t be as cold, the storm track may be slightly further to the west. Again, there will be increasing clouds and only a slight chance of snow showers at the higher elevations before the sun returns for more dry and seasonably warm weather for the rest of the work week and headed into the weekend. So the Steamboat Ski Resort’s just-announced and earliest ever Opening Day on that Friday is currently forecast to be a nice one.
Longer-term models agree on another storm crossing the West Coast around the following weekend, but disagree on the storm track, with the more consistent ECMWF forecasting another grazing storm and the more mercurial-this-season American GFS forecasting some type of splitting storm that may bring some weather into the West.
Monday, November 4, 2019
After a cool front grazed Steamboat Springs this Monday morning and brought some clouds, the sun has returned with a 2:30 pm temperature of 46 F, only two degrees below our average. Other than another grazing cool front for late Wednesday or early Thursday, seasonably warm temperatures around five to as much as ten degrees above average are expected through Saturday, after which some light precipitation may return to our area for the end of the weekend.
A ridge of high pressure over the West Coast has directed the unseasonably cold air from last week into the upper Midwest and Northeast, allowing for warming temperatures and light northwesterly winds over our area. This pattern will be persistent through this week and likely the next week as well, mostly deflecting the waves of Pacific energy and moisture riding over the top of the ridge to our east.
A couple of waves will drag cool fronts near north-central Colorado for Thursday and Sunday, cooling temperatures back several degrees below average. While the Thursday wave looks dry, there is a good chance of some light snow showers for Sunday into Monday. Otherwise, expect lots of sun and very pleasant weather, with high temperatures around five to almost ten degrees above average.
This pattern looks to persist into at least the middle of the following week, though long-range weather forecast models do indicate a strengthening Pacific jet stream that will eventually carry storms closer to our area as that workweek progresses.
Thursday, October 31, 2019
After the weather extremes of the last several days around Colorado, benign weather appears for the upcoming week, and likely beyond. Several grazing systems will bring cool temperatures and breezy northwest winds to northern Colorado on Friday, around Monday and the following Thursday, along with some clouds and the possibility of light intermittent snow showers at the higher elevations.
After a low this morning of -8 F and a daytime maximum temperature of 12 F yesterday, this Thursday saw a high of 28 F, only several degrees above our average low of 22 F, and 23 F below our average high of 51 F. The ridge of high pressure off the West Coast that has directed arctic our southward over the Rockies has also been responsible for the extreme fire behavior in California as the Santa Ana winds have roared.
We’ll see another cold night tonight with low temperatures around zero, and Pacific energy rounding the ridge will drag a weak cool front through northern Colorado on Friday. But the storm will not mix with polar air again until it is well east of our area, so temperatures will warm several degrees from today even as there is a possibility of some light snow showers at the higher elevations.
After a Saturday morning again near zero, temperatures will begin to recover in earnest behind Friday’s grazing storm, though will still be seasonably cool and around ten degrees below average. This looks to continue for Sunday with plenty of sun and breezy northwest winds
More of the same is expected for the work week as the West Coast ridge looks to remain persistent. A couple more Pacific storms rounding the ridge will continue the breezy northwest winds across northern Colorado, with another couple of grazing cool fronts around Monday and Thursday leading to only a slight decrease in temperatures.
The West Coast ridge is forecast to weaken and move inland for the following weekend as the Pacific jet stream encroaches across the eastern Pacific. Sunny skies and warmer temperatures closer to average are currently expected for the following weekend.
Note that I will be traveling this weekend, likely delaying my normal Sunday afternoon weather narrative until Monday.