Shifted storm track brings more snow for Thursday

Wednesday, February 14, 2018

The shift in the North American weather pattern discussed in my last Sunday forecast has allowed the storm track to grace the Steamboat Springs area this work week. After the foot of snow on Tuesday, more is expected tonight and tomorrow as some leftover energy from the Tuesday storm, currently vacationing and moistening off the coast of southern California, is ejected over our area by another incoming Pacific storm traveling across the Gulf of Alaska. The incoming Pacific storm will mix with some cold air from western Canada and bring cooling temperatures to our area starting tonight that will become seasonably cold by Thursday night.

The end result is the light snow showers today will become moderate to heavy after midnight as the southern California storm and the Gulf of Alaska storm interact and move sequentially over our area. While areas north of Steamboat Springs will be more favored, we should do quite well as we have moisture and strong forcing from the storms. Snowfall rates over an inch per hour are possible at times, with another round of Steamboat Magic likely bringing significant snows between report time and ski time. I’ll guess 3-6” of snow for the morning report, with another 3-6” possible between the report and noon, and another 2-5” for the remainder of the storm, which winds down by Thursday night.

However, the moderate winds are forecast to be westerly for a large part of the storm, and those that ski the Steamboat Ski Area know that our snow quality can be adversely affected by westerly winds due to the largely western aspect of Mt. Werner. Northwest flow is forecast for late in the storm and late in the day Thursday, but when the moisture is decreasing, and this will limit the accumulations of the lightest and fluffiest snow on the backside of the storm.

The cold temperatures forecast for Thursday night and Friday morning will moderate Friday afternoon behind the departing storm with the sun making a brief appearance. But another storm quickly follows and is forecast to graze our area from Friday night through Saturday morning, sparking sporadic and light snow showers.

Meanwhile, a much larger and colder storm travels through the Gulf of Alaska over the President’s Day weekend and again mixes with very cold western Canadian air. We may see some sun and mild temperatures on Sunday ahead of this storm, which travels southward along the West Coast before moving inland around Monday.

There is uncertainty with respect to how quickly this storm moves inland, but it appears another stationary front may form somewhere near our area around Monday or Tuesday, leading to the possibility of more significant snows early in the work week before unseasonably cold air is forecast to wash over the western states behind the storm.

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Snowy work week on tap

Sunday, February 11, 2018

The dominant North American weather pattern of cold in the east and warm in the west looks to be finally changing as the persistent vortex of very cold air over Hudson Bay changes its orientation from north-south to more east-west. This allows the cold air to move westward across western Canada, pushing the ever-present-this-winter-season West Coast ridge westward and providing a proximate source of cold air that will mix to varying degrees with incoming Pacific storms.

The current cool temperatures and sunny skies this Sunday will give way to warming temperatures this afternoon and clouds later tonight as a Pacific storm enters the Great Basin and winds turn to the southwest. This storm will weaken before being ejected across Utah and Colorado on Monday by a second trailing storm, creating a stationary front that will extend from southwestern Utah through north-central Colorado for most of Monday.

The southwesterly flow is usually not conducive for snow in the Steamboat Springs area, in part due to the shadowing effects of the Flat Tops to our south, but atmospheric forcing and instability can overcome this negative if it is strong enough. In this case, the ejecting storm will travel along the stationary front, beginning snow showers Monday morning that should intensify during the day and continue to some degree through the night. Relatively warm winter temperatures will limit the fluffiness and depth of the accumulations, but we could see 3-7” of snow by Tuesday morning.

Meanwhile, the second trailing storm shears apart, with the southern part headed toward southwestern California and the weak northern part keeping weakening snow showers over our area for Tuesday and Wednesday.

More good news arrives midweek as another Pacific storm travels across the Gulf of Alaska and digs southward along the West Coast and ejects the storm over southern California northeastward. At this point, it looks like this storm will draw in some substantial cold air from western Canada which will keep most of the storm moving through the Great Basin.

Like the last storm, and the storm for Monday, there are a lot of moving pieces, but it is possible we may see significant snows on Thursday as we first see the relatively warm snows associated with the southwest flow of the ejecting storm and then the colder snows associated with the eventual northwest flows from the Gulf of Alaska storm. 6-12” of snow are possible by Friday morning if the current forecasts hold.

A break in the weather is currently advertised heading into the President’s Day weekend as another significant and colder storm forms to our northwest and possibly starts snow showers again as soon as Sunday afternoon.

Cold fingers? My new favorite cold-weather glove are all about warmth. And when combined with the standard HotHands handwamers which I use below about 5F, I’m good for the day. Three fingers sit together with the index finger separated, but there is enough room to scrunch all your fingers together while on the lift, which is especially nice if you have a handwarmer in the mitten-part of the glove.

Some snow for Winter Carnival weekend

Thursday, February 8, 2018

The large-scale weather pattern over North America is still dominated by a ridge of high pressure off the West Coast and a large vortex of cold air over Hudson Bay. Several storms are lined up to travel over or through the ridge of high pressure to our west and mix to some degree with the cold air over western Canada. There will be chances of accumulating snows in the Steamboat Springs area Saturday and early and late in the coming work week.

Generally, I am not impressed with the first two storms, though the forecast has been dripping with uncertainty for the past few days and could certainly change. Right now, moisture ahead of the Saturday storm will continue to stream over northern Colorado today and tomorrow, with some energy forecast to graze our area on Friday which may lead to some light snow showers, especially at the higher elevations, and breezy conditions.

The incoming storm will shear apart as it crosses Colorado on Saturday, with our area left between the northern and southern branches of the storm. Snow chances will be highest on Saturday as a piece of the cold front stalls near our area, but the disorganized storm is promising greater snow amounts to our south as that area is closer to the southern end of the storm.

The cold front finally blasts through our area around Saturday evening with clearing skies and cool temperatures forecast behind the front. We could see as much as 1-4”of snow on Saturday which would be reported Sunday morning.

Meanwhile, another Pacific storm is forecast to move through the western ridge of high pressure, and this one is forecast to split as some energy digs into the southwestern U.S. and some swings eastward across and north of our area on Monday. We will see sun and warming by Sunday afternoon ahead of this storm, but that looks short-lived as the northern piece of the storm moves over our area, starting light snow showers again on Monday.

The weather will turn quieter after the Monday storm as we are between the departing northern part storm to our east and the left-behind storm to our southwest. The next chance of snow around the end of the work week occurs as the southwestern storm is dislodged by another Pacific storm traveling through the western ridge of high pressure.

At this point, the end-of-week storm, as portrayed by the current weather models., is looking the most promising as the southwestern storm spends some time moistening off the southern California coast during the work week. The new Pacific storm is forecast to mix with both cold air from Canada and the southwestern storm leading to snow chances for our area around Thursday. However, the number of moving pieces between now and then leads to a very low-confidence forecast.

Stop battling cold feet! I’ve used the awesome Hotronic foot warmers from their beginnings, and can honestly say that each iteration of the product is better than the last. I have the S4 custom, attached to my powerstrap so they never fall off, and my toes stay warm for my entire ski day.

Snows continue through early Wednesday

Sunday, February 4, 2018

The overall weather pattern for the Steamboat Springs area has changed very little since my last forecast, with a ridge of high pressure to our west and a deep and very cold vortex of cold air over Hudson Bay. Waves of energy and moisture traveling over or through the ridge of western high pressure will mix to varying degrees with cold air over western Canada through Tuesday, with the amount of mixing the main uncertainty in the forecast.

Over the past several days, we’ve had plenty of moisture and favorable northwest flow, but the warm temperatures are strangling our potential snow accumulations. That looks to change around midnight tonight as some cool air finally makes its way over our area. Until then expect cloudy and warm temperatures with minimal snow accumulations, but snows should increase after midnight and become moderate to heavy at times through at least the early morning hours.

Since we may see snowfall rates over an inch per hour at times, I would expect 2-5” of snow by the morning report. Additional waves of moisture and energy will keep the snow going through the day and overnight Monday, and I would guess 2-5” during each twelve hour period, leaving a 4-10” forecast for Tuesday morning.

Snowfall will taper off for a time Tuesday before picking up again in the afternoon as the the last wave in this series crosses the area. This will also bring the coldest temperatures of the storm cycle, and while the moisture decreases, the colder temperatures will mean lighter and fluffier snow., especially after sunset Tuesday. The timing and strength of this final wave is still uncertain, but I could see another 2-5” for the Wednesday morning report.

There appears to be a break in the weather around midweek, with the weekend forecast becoming more uncertain as the weather models change their predictions. The end result is there may or may not be some sort of storm for the Steamboat Springs Winter Carnival weekend.

Save your soles! If you do any walking in your ski boots on hard surfaces, then you know the grating and grinding sounds you hear can’t be good. In fact, worn boot soles make your binding unsafe as it interferes with the boot-binding interface. Cat Tracks are a flexible protector that keeps your boot soles pristine, and adds a cushion for walking comfort. When it’s time to click into bindings, I take them off and stash them in my coat pocket. Yaktrax are similar, but I have not used them since they appear they would take up a bit more space in my jacket pocket. But you get a rocker sole that promotes a natural stride which may be worth the space sacrifice. If I did not have to carry them around all day, these would be my choice.

Snows likely through Tuesday

Thursday, February 1, 2018

Colorado will be sandwiched between a ridge of high pressure off the West Coast and a deep and very cold vortex of cold air over Hudson Bay, which will continue tormenting the Midwest and East with cold and snowy weather. The resultant northwesterly flow over the Steamboat Springs area, which will be breezy to windy at the higher elevations, will yield generally light orographic or terrain-driven precipitation for almost the entire upcoming week in a long-duration event, enhanced from time to time by passing waves of energy and moisture.

These waves will travel over the top of the West Coast ridge and possibly mix with some cool air from western Canada, though the coldest air looks to stay to our north and east. We won’t be seeing any snow to liquid water ratios of thirty or forty to one, like the last storm, though snowfall will vary between denser and less dense depending upon how much cool air mixes with the incoming waves. The amount of mixing, along with the timing and strength of each wave are the sources of uncertainty over the next five days.

Snowfall should taper off this afternoon and evening on Mt. Werner behind the current small storm before picking up again Friday in advance of the next wave, timed to pass over Colorado during the day Saturday. The warming temperatures forecast for Friday will put the Yampa Valley near the rain-snow line, but right now it appears there is enough cool air for precipitation to remain as snow even in town, though there may be a mix at times.

Cooler air arrives with the storm after midnight Friday, and snowfall rates should increase for a time through Saturday morning before decreasing again as the wave moves past our area by the afternoon. I would guess 2-5” of snow for the Saturday morning report, with another 2-5” possible during the day and overnight, to be reported Sunday morning.

The light and continuing snowfall should pick a bit for Sunday as another wave in northwesterly flow skirts northern Colorado before ending for a short time Sunday night, leaving another 2-5” for the Monday morning report.

But the coldest and strongest wave follows for Monday, with snow redeveloping as early as Monday morning. Moderate to heavy snow is currently expected for Monday afternoon and night before tapering off on Tuesday, and there may be 6-12” of snow by the Tuesday morning report.

Adding up these snow guesses yields around one to two feet of snow between today and Tuesday before the western ridge pushes inland and ends the storm cycle. Because of the large orographic component, snowfall rates will increase with elevation, so amounts in town will not be nearly as impressive as the snowfall recorded at the top of the Steamboat Ski Area.

Drier weather is advertised to return after Tuesday, though there are an additional couple of waves for Wednesday and the following weekend which may trend stronger or weaker as incoming Pacific energy continues to ride over the top of the building western ridge.

Want to instantly improve your skiing? Then you’ll want progressive flex in your ski boot, and the Booster Power Strap delivers by elastically fastening together the lower leg and the ski boot. You get direct ski control so skis start turning sooner and end the turn faster.

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