8:00 start saturday

8:00 start friday

Video to Come

Sorry about the link - Marketing has to work some editing magic first.  Soon.

The Rooster Comb / Hanging Field Results

http://www.youtube.com/watch?v=CY6nE_euM1A&feature=youtu.be

Start Time Thursday---8am

Time and Day: 1200 Wednesday

 The Snapshot:   It is sure nice to see the sun and feel a little warmth.  This dry period will last through the end of the week.    

The Science:  The low pressure system is now tracking south and directing most of its energy into California.   Therefore, the PNW will remain partly sunny and dry for the remainder of the week.  Temperatures will warm during the next few days under southerly flow aloft.   Cold arctic air arrives on Friday.

 

4-7day Long Range:  The week will finish dry with a chance of some light snow over the weekend.  A cold snap is expected over the weekend with single digits lows probable.

 

Note:  I will be gone (ski touring trip in the wilds of Montana) starting tomorrow through March 10^th.  In the meantime refer to:  NWAC http://www.nwac.us/mountain-weather-forecast/current/ 

 

Precipitation: Water by 4am = 0 Snow = 0 24hr total inches of water ending at noon tomorrow = 0 24hr total inches of snow ending at noon tomorrow = 0   Trend and Timing: No measurable precipitation is expected through Friday.

Base Temp and Freezing levels:  Low: 22  High: 32 Freezing level: 3000’    5000’   Trends and Timing Freezing levels will reach 5000’ tomorrow and then gradually fall back down late tomorrow night.   Temperatures will continue to fall into the weekend.

Winds (mph) Base: 0-5 E shifting W Ridge Top: 5-15 E shifting W   Trend and Timing: Easterly winds will diminish today and shift westerly tomorrow.  East flow returns on Friday.

Start Time Wednesday---8am

From Dan Hilden

Big month!

On Feb 1st we had 182", and now we have 342". So that comes out to 160" so far this month. In the last 50 years 98/99 had the only bigger Feb total: 226". In 59/60 they got 227" and in 55/56 they got 166". The records only go back to 51/52.

 So we are now in the 2nd snowiest February in over 50 years, and the 4th snowiest on record.

Dan

MOUNTAIN WEATHER FORECAST

Time and Day: 0700 Tuesday

The Snapshot:   Dig out (instead of keep up) time begins today with the end of the snow.  Today will be mostly dry with dissipating clouds.

 

The Science:  The low pressure system that has been the engine for this past storm cycle will break up today.  This, coupled with a weak high pressure system centered over Idaho will create a dry period for the North Central Cascades for the remainder of the week.    

 

4-7day Long Range:  Most of the energy tracking toward the PNW late in the week is currently tracking south of the region. Therefore, no significant precipitation is expected for the next 4-7 days for Stevens Pass.  A cold snap will begin on Friday with low temperatures hitting single digits over the weekend.

 

Precipitation: Water by 4am = 0 Snow = 0 24hr total inches of water ending at noon tomorrow = 0 24hr total inches of snow ending at noon tomorrow =  0   Trend and Timing: The atmosphere will dry out today with no precipitation expected.

Base Temp and Freezing levels:  Low: 18  High: 24 Freezing level: 2000’    3500’   Trends and Timing Freezing levels will slowly rise to 3500’ tomorrow.  East flow will keep surface temperatures low through the night.  Periods of the sun could add some heat to the day.

Winds (mph) Base: 5-10 E Ridge Top: 5-15 E gusty   Trend and Timing: Easterly winds will increase today.

 

 

 

Start Time Tuesday 6:15am

MOUNTAIN WEATHER FORECAST

Time and Day: 0800 Monday

The Snapshot: One more day of snow before it all ends tonight.  The rest of the week will be mostly dry with a little snow and colder by the weekend.  We may even get some sunshine.

 

The Science:  The low pressure system off the western coast will spin one more band of moisture through the PNW today.   A high pressure ridge forming over the interior west will keep most of the moisture confined to the west coast starting tomorrow.   The eastern basin of Washington will also continue to cool down as more cold air streams in from the northeast today and tomorrow.  Wednesday, freezing levels will rise to around 4000’ under southerly flow.    

 

4-7day Long Range:   The end of the week will be mostly dry with the exception a of weak disturbance making its way into the region on Friday.  Another round of cold arctic air arrives over the weekend with unseasonably low temperatures.

Precipitation: Water by 4am = .25 -.5  Snow = 4-6 24hr total inches of water ending at noon tomorrow = .5 24hr total inches of snow ending at noon tomorrow = 4-6   Trend and Timing: Today will be similar to yesterday with snow tapering off tonight. No new snow is expected after midnight with some partial clearing beginning tomorrow.

Base Temp and Freezing levels:  Low: 14  High: 22 Freezing level:  +-2500’   Trends and Timing Freezing levels will remain low over Stevens Pass under cool easterly flow  through tomorrow.   Freezing levels begin to rise on Wednesday.

Winds (mph) Base: 5-10 E Ridge Top: 5-15 E gusty   Trend and Timing: Easterly winds will increase today with persistent ridge top winds through the night and tomorrow.

Start Time Monday 8am

MOUNTAIN WEATHER FORECAST

Time and Day: 0900 Sunday

The Snapshot: Poofta, nice a light.  The snow will continue today with low temperatures and light easterly winds.  

 

The Science:   Two warm fronts tracking in from the SW will collide with the cold air streaming in from the NE right along the crest of the mountains.  This will keep the snow falling into tomorrow morning.  Light scattered snow showers will slowly taper off tomorrow as the low pressure system tracks away from the region.

 

4-7day Long Range:   The middle of the week will trend dry and warmer with another system forming over the region by the end of the week. 

Precipitation: Water by 4am = .5+  Snow = 4-8” 24hr total inches of water ending at noon tomorrow = +- .75 24hr total inches of snow ending at noon tomorrow = 6-8”   Trend and Timing: Snow will intensify today and subside after midnight.   Light scattered snow showers can be anticipated through the day tomorrow.

Base Temp and Freezing levels:  Low: 14  High: 24 Freezing level: +-1000’   Trends and Timing Temperatures will continue to fall through the night. Freezing levels will rise to 3000’ along the western slopes tomorrow with colder air remaining to the east.

Winds (mph) Base: 0 -10 E Ridge Top: 5-15 E   Trend and Timing: Easterly flow will continue to move through the Pass for the next few days.

6:15 start sunday

MOUNTAIN WEATHER FORECAST

Time and Day: 0900 Saturday
 
The Snapshot:  The snow machine is not done yet.  Snow will continue to fall in the mountains through at least Tuesday.  Cool easterly flow will keep freezing levels well below 4000’ into the start of the new week.  

 

The Science:   The weak high pressure that formed off of the coast did obstruct the general flow pattern by shifting the jet stream south.  But, a low pressure system developing in the Gulf of Alaska will spin more storms into the Cascade Mountains starting today.  These following systems are not as potent with colder temperatures and light (east) winds, but will produce some measurable snow during the next few days.   

 

4-7day Long Range: The cold arctic air mass dropping into the center of the country will usher in colder air for the next 2-6 days.  This mixed with the low pressure system churning in the Gulf of Alaska will keep the snow flying through at least the middle of next week.

Precipitation: Water by 4am = .5  Snow = 4-8 24hr total inches of water ending at noon tomorrow = .75 24hr total inches of snow ending at noon tomorrow =  6-10   Trend and Timing: Snow will increase tonight and continue through tomorrow.

Base Temp and Freezing levels:  Low: 14   High: 24 Freezing level: 2500’     500’   Trends and Timing Freezing levels will continue to decline during the next few days.  Low temperatures could reach the single digits early Monday morning.

Winds (mph) Base: 0-5 E Ridge Top: 5-10 E   Trend and Timing:  East flow will develop today and remain through the weekend.

8:00 start saturday

MOUNTAIN WEATHER FORECAST

Time and Day: 1000 Friday

The Snapshot. Light snow showers tapering off with partial clearing tonight.  More snow tomorrow.   

 

The Science:  The Puget Sound Convergence Zone has shifted south this morning which will bring and end to the snow today.   Even through the general pattern has changed; another weak system will bring more snow tomorrow.    

 

4-7day Long Range:  The week will start out with some snow and trend dry through Wednesday.   Another system enters the regions towards the end of the week.

Precipitation: Water by 4am = .10 Snow = trace 24hr total inches of water ending at noon tomorrow = .25 24hr total inches of snow ending at noon tomorrow = 2-4   Trend and Timing: A weak system drops in from the north tomorrow morning for more snow tomorrow afternoon and evening.

Base Temp and Freezing levels:  Low:15   High: 22 Freezing level: 2500’    500’   Trends and Timing Freezing levels will drop through the day and stay low through the weekend.

Winds (mph) Base: 0-5 W shifting E Ridge Top:  0-10 W  Shifting E   Trend and Timing: Light westerly flow will shift east tomorrow.  East flow strengthens into the start of the week.

 

 

 

6:15 start friday

MOUNTAIN WEATHER FORECAST

Time and Day: 0900 Thursday

 

The Snapshot:  Windy with moderate intermittent snow shower will continue through the day, similar to yesterday.  Snow will diminish tonight with light snow showers and sun breaks tomorrow. 

 

The Science:  Weak high pressure is currently building off the NW coast.  This will shift the flow pattern to cooler NW flow and cut off the snow gun tonight.   Light snow showers will linger into tomorrow with partly sunny conditions.  Another system tracks in from the north Saturday afternoon for some fresh snow to greet us Sunday morning.

 

4-7day Long Range:  Next week will start out with a chance of snow with another system on Wednesday/Thursday. 

Precipitation: Water by 4am = .5  Snow =4-6 24hr total inches of water ending at noon tomorrow = .5 -.75 24hr total inches of snow ending at noon tomorrow = 5-8   Trend and Timing: Snow will gradually taper off through the night with light showers expected through noon tomorrow.

Base Temp and Freezing levels: Low: 18  High: 24 Freezing level: 4000’    2000’   Trends and Timing Freezing levels will fall in the wake of today’s cold front.  Temperatures will remain nice and cool through the weekend.

Winds (mph) Base: 5-15 NW Ridge Top: 10-20 NW   Trend and Timing: Gusty NW winds will slowly decrease through the night.