Sunday, September 30, 2018
The weather in Steamboat Springs this Sunday will feature continued warm temperatures well above our 65 F average along with breezy southwest winds. Between a vortex of cold air spinning over Hudson Bay, a broad storm off the California Coast and weakening hurricane Rosa off the Baja coast, our pleasant fall weather will turn stormier heading into the first half of October as we first experience warm showers associated with decaying Rosa later Tuesday and then a series of cold fronts that will eventually bring snow to our area.
Some energy ejecting out of the West Coast storm will travel north of our area this Sunday, but bring some afternoon and evening clouds today and Monday, along with the possibility of some light showers. By Tuesday, former hurricane Rosa will be absorbed into the southwest flow ahead of the West Coast storm, and we should see increasing chances for rain as the storm moves near our area by later in the day and through Wednesday morning, with some areas possibly receiving moderate to heavy rainfall for a time.
There may be a small break between the departing former hurricane and a series of cold fronts that will move through our area over the next two weeks starting Wednesday night. Each cold front will bring unsettled weather and increasingly colder air to the region as pieces of cold air in western Canada break away from the Hudson Bay vortex and either mix with incoming Pacific energy or reinvigorate the storm system near the West Coast, or both.
The timing and strength of the cold fronts will certainly be subject to change, but right now there are good precipitation chances for almost every day for the next two weeks. Initially, the West Coast storm is forecast to move inland and pass near our area around next weekend, though additional incoming Pacific energy and cold air from western Canada keep cold and unsettled weather over the western states through the following week as well. For what its worth, it appears the coldest air and the best chance for snowflakes in the Steamboat Springs area will occur early in the work week after next weekend.
Thursday, September 27, 2018
As the sun continues moving south of the equator and the northern latitudes cool, the jet stream grows stronger and moves southward. Waves of energy spinning around a large vortex of cool air near Hudson Bay have brought cool temperatures to the upper Midwest and seasonable temperatures to the Steamboat Springs area so far this week.
Our temperatures will rise above our 66 F average starting today and lasting through a pleasant weekend, though we’ll see breezy to windy afternoons, with winds first from the northwest as a surge of cool air slides east of our area along the Front Range on Friday, and then from the west and eventually southwest as a storm off the California coast moves to our northwest on Sunday.
Another Pacific storm appears off the coast of California late in the weekend and conspires with hurricane Rosa, currently south of the Baja coast, to bring likely heavy rainfall to the southwestern quarter of the U.S., including our area, after the weekend.
Different weather forecast models have different ideas on how and when the Pacific storm interacts with the hurricane, though they generally agree that the the hurricane will be absorbed into the southwest flow ahead of the Pacific storm and carried over or near our area around Tuesday or Wednesday. We may see some high clouds later on Sunday, with mid and high clouds moving over our area by Monday, along with some showers possible by later in the day.
There may be a break in the cloud cover before the bulk of of decaying storm Rosa passes near or over our area later Tuesday or Wednesday, bringing possibly heavy rain and flooding concerns over recent burn scars. Unsettled weather is then expected behind the former hurricane for the rest of the work week as the Pacific storm makes landfall midweek and slowly moves across the Desert Southwest.
Sunday, September 23, 2018
Cold air from western Canada is sliding southeastward along a building ridge of high pressure in the Gulf of Alaska, and this pattern will bring several cool fronts to the Steamboat Springs area starting overnight tonight. Currently on this Sunday, we are seeing breezy and warm southwest winds and some clouds across northwestern Colorado in advance of the first front.
There is some moisture associated with the front, and there will be the possibility of showers overnight and early Monday morning as this first cool front moves through the area. Showers may linger in the morning, but should be gone by the afternoon as we see seasonable temperatures near our 68 F average.
Low temperatures will also be around or slightly below our 32 F average, and the seasonable weather looks to continue through most of the work week as additional surges of cool air from the north keep the warmer than average temperatures experienced lately at bay.
By Friday, a storm that was caught underneath the Gulf of Alaska ridge of high pressure will finally move eastward, and is forecast to cross the northern California coast early in the weekend before moving to the north of our area late in the weekend. We’ll see a bit of a warm-up heading into and lasting through the weekend, along with breezy to windy westerly to southwesterly flow as the system passes by.
Thursday, September 20, 2018
The Steamboat Springs area should see a very pleasant and warm weekend around the fall equinox, which occurs at 7:54 pm Saturday evening. A cool front currently timed for Monday will bring the chance of some showers, followed by cooler temperatures that will last through the upcoming week.
Currently, behind the cool front that passed through the Steamboat Springs area last night, this Thursday will see sunny skies and breezy west to northwest winds with seasonable temperatures around the 70 F average. Temperatures will warm to above average for Friday and the weekend with lots of sun through Sunday morning, but as mentioned in the previous forecast, we will see cool mornings at or below our 33 F average for Friday and Saturday that may require tender vegetation to be protected.
Depending on the speed of the next cool front, we may see some mid and high level clouds to end the weekend along with breezy southwest winds. Currently forecast for Monday, our next cool front may have enough moisture associated with it for some showers during the day.
Whatever moisture that is brought by the front is gone by later Tuesday, and seasonable temperatures with plenty of sun are expected through midweek, with increasing winds as the next weather event approaches.
The strongest cool front of the season is forecast for around Thursday, and if there was moisture associated with it, there would be snow on Mt. Werner by Friday morning. Current forecasts, however, keep the front fairly dry, bringing cooling temperatures later Thursday as the front moves though the area and eventually below freezing temperatures to the northern half of the Midwest as the weather system slides to our east.
Beyond Thursday and into the following weekend, our area will be sandwiched between the cold Midwest and warming Pacific Northwest, bringing dry and breezy northwesterly winds along with seasonable temperatures.
Sunday, September 16, 2018
The chances for wetting rains remain low for the Steamboat Springs area this following week, and only a cool front currently timed for around midweek will briefly interrupt the string of afternoon temperatures that have been over 10 degrees above our current 71 F average.
Colorado will see some increasing mid and upper-level moisture in continued southwest flow ahead of a cool front currently timed for late Wednesday or early Thursday. We’ll see some clouds and perhaps some showers producing more wind than rain on Monday, Tuesday and especially Wednesday before the cool front passes through northern Colorado. And overnight lows will also stay warm and above our 35 F average as the atmospheric moisture acts like an insulating blanket overnight.
Unfortunately, the cool front will be dry, and winds will increase and turn first to the west around frontal passage and then northwest on Thursday. We will see cooler temperatures on Thursday that may even stay a few degrees below our average high, with overnight lows by Friday morning dropping below our average. Frost will be possible, and those gardeners lucky enough to have some late summer fruit will want to protect their plants susceptible to freezing temperatures.
Another round of incoming Pacific energy will redevelop the area of low pressure off the West Coast late in the work week, swinging our winds back to the southwest and causing temperatures to rebound to above average by Friday. This looks to last through the weekend and into the following work week.