Start time for Friday: 8am, Day Crew Only.

Yes, the models can be way off...

Day crew only for post-deluge clean up in prepartion for full operations on Saturday. The first moring bus will be the only up-hill bus, and the one down bus will be no later than 4:45. It might be earlier if things finish early.

Quite a strom the last couple of days. A few feet of snow, several inches of water, and a bunch of slides.

An impressive storm with a few curve balls.

 Its interesting to go back and figure out what was missed.   The models got the precip amounts pretty much spot on.  The freezing levels and winds were a different animal. 

Winds:  The 5000' wind models showed direct westerlies above 60knots.  In reality, the winds had a slight SW orientation which must of sheltered Stevens from the higher winds.   
 
Freezing Levels:   I am still pondering how the freezing levels could of been off by  2-3000' for over 36hrs.   My theory - A cooler pocket of air over the North Cascades must of stretched further south than the models indicated.   Its a good lesson;  even in the very short term, the weather models can be very wrong.     
 
 

STEVENS PASS MOUNTAIN WEATHER

3/31/2011 Weather


24HR FORECAST starting at NOON today

Water - .25  Snow - 2-4
Freezing Level -  4500' lowering to 3000'
Winds - 5-15 WSW shifting E


General Discussion: A whopper of a storm, almost 4” of water in the last 24hrs with another 1” expected today. Snow is expected tomorrow.


Long-term: April showers will bring more snow to the mountains and eventually spring flowers. A low pressure system developing in the Gulf of Alaska will spin more fronts through the PNW through most of next week.


TRENDS AND TIMING
Precipitation: The precipitation will come to and end later today with an additional foot of snow possible. A few residual snow showers will continue overnight. A cold front will bring another round of snow later tomorrow.

Freezing levels: Freezing levels will slowly fall through the day. Freezing levels are expected to reach 3000’ or lower by Saturday morning.

Winds: The winds have a slight SW orientation which sheltered us from the higher winds yesterday and today. Winds will decrease and shift E overnight.

Start Time Friday 6:15am No Foolin

Two Natural avalanche cycles over the past 48 hours. First Wednesday at 11:00am and 2am Thursday morning. These cycles seemed to flush everthing that needed. Could not see into Susan Jane today...Thursday.

Closed for the day.

Start Time Thursday 8:00am

STEVENS PASS MOUNTAIN WEATHER

3/30/2011 Weather


24HR FORECAST starting at NOON today

Water - +2"  Snow 4-6
Freezing levels - 4500' rising to 6000'
Winds - 15-30 W  Gust near 50mph possible.


General Discussion: The leading edge of the warm front hit the coast early this morning. As the front moves through the mountains, the fun will begin with heavy rain, rising freezing levels, and high winds.

Long-term: Cool air flowing in behind this front will bring some snow late tomorrow. Friday will be mostly dry with more snow possible on Saturday.


TRENDS AND TIMING
Precipitation: Snow will change to rain today. Rain will slowly shift back to snow early tomorrow morning and then begin to taper off through the day. Storm totals are exceeding 5” of water by Friday morning.

Freezing levels: Freezing levels will rise above 6000’ today with surface temperatures possibly reaching 40f. Freezing levels are expected to slowly fall tomorrow.

Winds: +20 mph sustained westerly winds will crank through the pass today and most of tomorrow.

Front Hits Land.

 Front made land fall this morning and stalled just a bit.  Once the front passes over the mountains, temps will rise to +6000' with strong westerly flow in its wake.  Storm totals still exceeding 5" by Friday morning.  

Its Gonna Get Sporty

Tripple point frontal system aimed directly at the PNW.

Start Time Wednesday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/29/2011 Weather

24HR FORECAST starting at NOON today

Water - 1-2 "  Snow 2-5"
Freezing levels - 4000'  rising to 6500'
Winds 20-50 W

General Discussion: A very strong warm front will bring heavy precipitation and high winds to the Pass tonight and tomorrow.

Long-term: This storm will come to and end early Friday morning as high pressure builds. The weekend is looking mostly dry with a chance of some light snow.


TRENDS AND TIMING
Precipitation: Snow will continue today with 2-4” still possible. Snow will change to heavy rain sometime this evening. Storm totals could exceed 4” of water by Friday morning.

Freezing levels: Freezing levels will rise to 4000’ today and then continue rising through the night. Freezing levels are expected to top out at 6000’+ tomorrow.

Winds: Winds will also be a big player during this storm. Models show westerly winds topping 50mph starting early tomorrow morning. High winds will be a factor throughout the day.

Available Moisture Out There? Hummm

8:00am Start time for Tues. March 29th, 2011

STEVENS PASS MOUNTAIN WEATHER

3/28/2011 Weather

24HR FORECAST starting at NOON today

Water - .25 -.5  Snow - 2-5
Freezing Levels - 4000'
Winds 5-10 W



General Discussion: An approaching warm front will bring more snow to the mountains tonight and tomorrow.

Long-term: Look for higher freezing levels with rain/snow combo on Wednesday/Thursday. High pressure developing off the southern coast will likely bring dry and seasonally warm weather to the PNW by the weekend.


TRENDS AND TIMING
Precipitation: Wet snow will develop this evening and fall through the night and most of tomorrow.

Freezing levels: Freezing levels will remain just below pass level through noon tomorrow. Freezing levels will then rise above 5000’ in the wake of the warm front. Day time warming will once again push surface temperature into the mid 30’s.

Winds: A brief period of east flow will develop tonight. Westerly flow will kick in again tomorrow as the front moves through. Periods of gusty frontal winds will be possible.

8:00am Start Time for Monday, March 28th, 2011

STEVENS PASS MOUNTAIN WEATHER

3/27/2011 Weather


24HR FORECAST starting at NOON today

Water - .25 -.5 Snow - 3-5
Freezing levels - 3500'
Winds  5-10 WSW


General Discussion: A frontal system approaching the PNW coast will bring another round of moisture to the mountains today.


Long-term: The upcoming week will be wet with a snow/rain mix probable throughout. High pressure is trying to build late in the week. If this materializes, the weekend could be sunny and warm.


TRENDS AND TIMING
Precipitation: Another band of snow will pass through tonight with partial clearing tomorrow morning. Moderate to heavy precipitation is expected for Tuesday/Wednesday.

Freezing levels: Freezing levels will fall to 3000’ through the night. Freezing levels are expected to rise to 5000’ or higher by the middle of the week.

Winds: Westerly flow aloft will accompany the next front. East flow will thus give way to WSW flow late tonight.

STEVENS PASS MOUNTAIN WEATHER

3/26/2011 Weather

24HR FORECAST starting at NOON today

Water - <.25 Snow - 1-3
Freezing levels - 4000' steady
Winds - 0-10 ESE



General Discussion: Not much is changing in the pattern – snow showers with sun breaks will continue for the remainder of the weekend.


Long-term: Sunday through Tuesday looks to be fairly active with snow likely, the second part of the week is shaping up to be warmer and dryer.


TRENDS AND TIMING
Precipitation: Light snow showers will continue. Snow will intensify tomorrow afternoon as a weak front pushes through.

Freezing levels: Freezing levels will continue to remain steady at the 3500’-4000’ level through tomorrow. Sun breaks will once again push surface temperatures into the mid to upper 30’s.

Winds: East winds will continue to flow through the Pass but become less gusty throughout the day.

8:00am Start Time for Sunday, March 27, 2011

Start Time Saturday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/25/2011 Weather


24HR FORECAST starting at NOON today

Water - <.25 Snow - 1-3
Freezing levels - 3500' steady
Winds - 5-15 E


General Discussion; Today will be mostly dry with some sun breaks possible. More bands of snow will pass through the mountains through the weekend.
Long-term: A warmer air regime with continue chances of storms tracking into the PNW will continue next week.

TRENDS AND TIMING
Precipitation: The rest of the day will be mostly dry with a small chance of some light snow showers. Another band of snow will pass through the mountains around mid-morning tomorrow.

Freezing levels: Freezing levels will hover around 3500’ for the next few days. Sun breaks may drive surface temperatures into the mid to upper 30’s.

Winds: East flow will strengthen during the next 24hrs.

Start Time Friday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/23/2011 Weather


24HR FORECAST starting at NOON today

Water - <.25  Snow - 1-3
Freezing Levels -  4000'
Winds -  5-15 E gusty


General Discussion: Enjoy the beautiful weather today because snow is back in our future. A low pressure system churning off the coast, will pull bands of moisture and warmer temperatures up from the south during the next few days.

Long-term: The long range forecast models have the approaching systems weakening and breaking apart as they hit land. Therefore, precipitation amounts over the weekend will probably be downgraded. We can still expect bands of passing snow showers to be the weather pattern through the weekend.


TRENDS AND TIMING
Precipitation: Today will be mostly dry. A small band of moisture will bring a period of snow early tomorrow morning. Snow showers are expected to increase late tomorrow and into Friday.

Freezing levels: Freezing levels will rise to 4500’ this evening.

Winds: East flow will strengthen today and become gusty along the ridge tops.

Start Time Thursday---8:00am

Start Time Wednesday---8:00am

NW flow continues to bring storms our way

Long Range model for Friday/Weekend.  Cool air riding on NW jet still well established in the northern climes. 

STEVENS PASS MOUNTAIN WEATHER

3/22/2011 Weather


24HR FORECAST starting at NOON today

Water - .10  Snow - trace
Freezing Levels - 2500' rising to 3000'
Winds 5-10 W shifting E

General Discussion: A weak cold front that passed through early this morning will leave in its wake, a few scattered snow showers and some sunshine.

Long-term: Weak disturbances will continue to affect the PNW through the week. A more organized system is developing for the weekend that could bring another round of snow to the mountains.


TRENDS AND TIMING
Precipitation: Upper level ridging will allow just a few light snow showers to lurk around the Cascade Crest today and tomorrow.

Freezing levels: Freezing levels will stay low through tomorrow. Clearing tonight could allow temperatures to dip into the middle to low teens. Warming will occur tomorrow evening with freezing levels rising to pass level.

Winds: Light westerly flow will shift easterly tomorrow morning. East flow will strengthen tomorrow evening.

8:00am Start Time for Tuesday, March 22nd, 2011

8:00am Start Time for Monday, March 21st, 2011

STEVENS PASS MOUNTAIN WEATHER

3/19/2011 Weather


24HR FORECAST starting at NOON today

Water - .10 Snow 0-2
Freezing Levels -  4000' steady
Winds  0-10 E

General Discussion: Broken clouds and tapering precipitation will be on the weather menu for today. It should be a very pleasant weekend in the weather department.

Long-term: Bands of moisture with clear periods in between will continue to be the general weather pattern for the next several days.


TRENDS AND TIMING
Precipitation: Light snow showers will continue to be possible through the weekend. No significant accumulation is expected.

Freezing levels: Freezing levels will hover right near pass level for the next several days. Sun break will push day time temperature well into the 30’s. Cool nights will also be possible with clear skies.

Winds: Winds will shift easterly and strengthen over the next 24 hrs.

8:00am Start Time for Sunday, March 20th, 2011

8:00am Start Time for March 19,2011

STEVENS PASS MOUNTAIN WEATHER

3/18/2011 Weather


24HR FORECAST starting at NOON today

Water - .5 Snow 4-8
Freezing Levels - 3000' steady
Winds - 0-10 E shifting W


General Discussion: Bands of moisture will continue to move through the PNW throughout the weekend.

Long-term: The advertised drying trend, with periodic bands of moisture, is still on track for the upcoming week. It seems that the atmosphere is in its classic chaotic state of trying to figure out what season it wants to be.


TRENDS AND TIMING
Precipitation: A moderate to heavy cell of snow is expected to move through the mountains this evening. Snow should quickly taper off around midnight with just spotty showers following tomorrow morning.

Freezing levels: Freezing levels will slowly rise from 3000’ to 4000’ by the end of the weekend.

Winds: East flow will weaken today and shift westerly through the night. General southerly flow aloft will eventually shifts easterly again by the end of the weekend.

Start Time Friday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/17/2011 Weather


24HR FORECAST starting at NOON today

Water - <.25
Freezing Levels - 2500' rising to 3000'
Winds - 5-15 E

General Discussion: A low pressure system, stalled off the Washington coast, will continue to spin light snow showers through the PNW mountains today.

Long-term: The next 2-4 days will be relatively dry with a few bands of snow showers, heavy at times, passing through the mountains. An overall drying trend will continue to progress next week.


TRENDS AND TIMING
Precipitation: Radar currently shows a few showers moving through the state today.

Freezing levels: Freezing levels will remain low today. However sun breaks will push surface temperature to near freezing.

Winds: East flow will strengthen today. Ridge top east winds could be gusty and brisk at time tomorrow.

Jet Heads South for the Spring

Jet stream models confirm pattern change.  Leaves the PNW in the void between seasons. 

Start Time Thursday---6:15am

STEVENS MOUNTAIN WEATHER

3/16/2011 Weather


24HR FORECAST starting at NOON today

Water - .25  Snow 1-3
Freezing levels - 2500'
Winds - 5-10 W


General Discussion: The approaching low pressure system is expected to stall off coast and then drift south. This will spin periodic bands of moisture through the mountain for the remainder of the week.

Long-term: It seems that our storm cycle is coming to and end. A few more disturbances are expected to move through over the next 2-4 days, but for the most part, we will enter a warmer period with fewer chances of significant winter storms.


TRENDS AND TIMING
Precipitation: Weak high pressure aloft will slowly bring an end to the snow tonight. Tomorrow will be relatively dry with a few snow showers lingering around the Cascade crest.

Freezing levels: Freezing levels will fall to 2500’ tonight. However, sun breaks will push surface temps into the mid 30’s today and tomorrow. Good night time cooling should also occur with the aid of some clear skies.

Winds: Westerly flow will slowly shift easterly through the next 24 hrs.

Start Time Wednesday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/15/2011 Weather


24HR FORECAST starting at NOON today

Water - .5-.75  Snow 4-8
Freezing levels - 4000'  falling to 3000'
Wind 5-20 W gusty


General Discussion: A cold front approaching the coast today will bring more snow to the mountains tonight and tomorrow.


Long-term: A high pressure ridge will begin to build in the upper atmosphere tomorrow. This will likely break up the approaching systems and produce light passing snow showers with little accumulation Thursday-Saturday.


TRENDS AND TIMING
Precipitation: Light snow showers will continue today. Snow will intensify tonight with the passing of the cold front and strengthening westerly flow aloft. A drying trend will begin tomorrow afternoon and continue through the remainder of the week.

Freezing levels: Freezing levels will also fall with the cold front. Freezing levels will continue to drop tomorrow night and Thursday.

Winds: Today’s east flow will shift westerly tonight. Ridge top winds will once again be strong through the night.

Persistent NW storm track

Looks like the high pressure off the Southern Pacific Coast will not track its way north like previously thought.  A strong NW jet continues to produce a NW storm track well into next week..

6:15am Start Time for Tuesday, March 15th, 2011

STEVENS PASS MOUNTAIN WEATHER

3/14/2011 Weather


24HR FORECAST starting at NOON today

Water - .5  Snow 5-8
Freeing levels -  +- 4000'
Winds  5-15 ESE


General Discussion: More snow for the mountains today and tomorrow.

Long-term: An active NW storm track will continue through the week. Winter isn’t quite done with us just yet.


TRENDS AND TIMING
Precipitation: Snow showers will continue through today. Another push of moderate of heavy snow will hit tomorrow morning around 4am. Snow will once again taper to showers during the day.

Freezing levels: Freezing level will inch toward 4500’ overnight. Freezing levels will then drop slowly through tomorrow.

Winds: East flow will develop at the surface today and remain dominant through tomorrow. Winds will be gusty at times with the passing fronts.

6:15 Start Time for Monday, March 14th,2011

STEVENS PASS MOUNTAIN WEATHER

3/13/2011 Weather


24HR FORECAST starting at NOON today

Water - .5 -.75  Snow 6-8
Freezing Levels - 3500' - 4500'
Winds 5-15 ESE


General Discussion: Another front will bring more snow into the mountains today.

Long-term: A series of fronts, barely distinguishable from one another, will provide a steady stream of moisture through the middle of the week. A generally pattern change is still developing for next weekend.

TRENDS AND TIMING
Precipitation: The snow will intensify today. There will be a short period of just showers this evening with snow ramping up again tomorrow morning. Storm totals by Tuesday may exceed + 3” of water.

Freezing levels: Freezing levels will bounce between 3500 and 4500’ through this entire storm cycle. East flow should help keep surface temps at or just below freezing.

Winds: Ridge top winds will shift from E to SW and strengthen tonight. East flow at the surface, will try and hold on through the night, but may switch to SW as well.

8:00am Start Time for Sunday, March 13, 2011

STEVENS PASS MOUNTAIN WEATHER

3/12/2011 Weather


24HR FORECAST starting at NOON today

Water - .25-.5  Snow 3-5
Freezing levels - 3000' rising to 4500'
Winds - 5-15 ESE


General Discussion: A strong cold front approaching the coast will bring periods of wet snow to the mountains through the weekend.


Long-term: Pacific storms will continue to pound the PNW through most of next week. High pressure building off the coast of California will be something to watch in the next 6-10 days. If this continues on its current path, it will bring a significant pattern change sometime early next week.
TRENDS AND TIMING
Precipitation: Radar shows the first wave of moisture entering the mountains this morning. Snow will taper to showers this afternoon with another relatively quiet night ahead. The next push of moisture will hit the mountains after 4am tomorrow with moderate wet snow falling throughout the day.

Freezing levels: Freezing levels will rise to 4500’ today and remain near or just above Pass level through tomorrow. East flow should hold surface temperatures at or just below freezing.

Winds: East flow at the surface will continue through tomorrow. Winds aloft will shift westerly at times but remain dominantly ESE.

8:00am Start Time for Saturday, March 12, 2011

STEVENS PASS MOUNTAIN WEATHER

3/11/2011 Weather


24HR FORECAST  starting at NOON today

Water - .25  Snow - 2-4
Freezing Levels - 2500' rising to 3000'
Winds - 1-10 ESE


General Discussion: This morning’s radar shows a few snow showers left in the highway 2 convergence pipe. Weak high pressure aloft will bring a break in the snow today with another system arriving tomorrow, and yet again on Sunday/Monday.

Long-term: This pattern will continue with several more fronts tracking toward the PNW through mid week. Long range models are starting to show the jet shifting north, and high pressure off the coast of California beginning to build. If these two features get their way, it will significantly change the pattern and could cast us quickly into spring.


TRENDS AND TIMING
Precipitation: Snow will taper to showers through today with a quiet night ahead. Snow will return after midnight and intensify during the morning hours. Snow will slowly taper off again tomorrow afternoon with the next repeat show starting Sunday afternoon.

Freezing levels: Freezing levels will slowly rise to 3000’ and then stick there through tomorrow. Freezing level will then inch toward 4000’ on Sunday. Watch for sun break pushing surface temperatures to near freezing this afternoon.

Winds: Winds will mellow and shift easterly today. Westerly flow will return tomorrow afternoon.

Start Time Friday---6:15am

STEVENS PASS MOUNTAIN WEATHER

3/10/2011 Weather


24HR FORECAST starting at NOON today

Water - .5  Snow - 6-8
Freezing levels - 4000'  falling to 2500'
Winds  10-20 W  gust +40 possible



General Discussion: A fast moving, strong front will hit tonight with another shot of heavy snow and high winds.

Long-term: Weak high pressure aloft will try and build tomorrow producing just light snow showers and maybe a sun break or two. More systems are on their way for Saturday and Sunday. Yes, more snow.

TRENDS AND TIMING
Precipitation: Another push of heavy moisture is expected this evening. Convergence conditions are expected to develop along with strong westerly flow. Snow will quickly taper off after midnight with just light snow showers left over tomorrow.

Freezing levels: Freezing levels will gradually fall through the next 24 hrs. Freezing level will rebound a bit tomorrow rising into the 3000’ range.

Winds: A high wind event is expected this evening with ridge top winds exceeding 50mph. The strong westerly flow will weaken through the night and shift easterly tomorrow.

Start Time Thursday---6:15am

With Forecasts of warmer temps. and heavy precip. the backcountry will get worse and remain unstable for the rest of the season.

STEVENS PASS MOUNTAIN WEATHER

3/9/2011 Weather


24 hour Forecast Starting at NOON on Wednesday

Water - .75  Snow: 6-10
Freezing Levels - 4000' rising to 4500'
Winds  0-15 ESE  shifting SW


General Discussion: A low pressure system hanging off the BC coast will drive more moisture into the mountains tonight and tomorrow. We should have a well deserved break on Friday and Saturday before the next round of storms rolls in.

Long-term: Long range models continue to show confidence in a consistent NW storm track parading several storms through the PNW for the extended period. Expect significant snow in the Cascade Mountains again next week.


TRENDS AND TIMING
Precipitation: Heavy snow will continue until noonish today. Snow will briefly change to showers this afternoon before the next system arrives tonight. Heavy snow, rain/snow mix will start around midnight and continue through tomorrow.

Freezing levels: Freezing levels will rise to 4500’ today and remain near pass level through tomorrow morning. A cooling trend will begin tomorrow with freezing levels falling to +-2500’ on Friday.

Winds: Strong SW flow aloft will bring fickle winds at pass level. Winds will swing back and forth from east and west as these systems move through. Strong westerly flow, with ridge top gust in the 50mph range, are showing up on the models for tomorrow night.

Start Time Wednesday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/8/2011 Weather

24HR FORECAST starting at NOON today

Water - .5 Snow - 4-7
Freezing levels -  3000' rising to 4000'
Winds  5-10 W  gusty



General Discussion: The rest of the day will be relatively dry and windy with another front fast approaching.

Long-term: Several systems are gearing up to move into the PNW for the next 6-10 days. The mountains will be likely receiving significant snow throughout this storm cycle.

TRENDS AND TIMING
Precipitation: There will be a lull in the snow this afternoon and evening as an upper level ridge quickly passes over. The next front is expected to enter the mountains after midnight with snow once again intensifying through the early morning hours. The temperatures will be right on the edge to receive a mixed rain snow in the base area.

Freezing levels: Freezing levels will bounce between 3000’ and 4000’ for the next 2 days. The warmest point will be early tomorrow morning. Cool air will filter in towards the end of the week.

Winds: Winds will shift westerly and become strong at times this afternoon. Gust to 30+ will be possible on the upper ridges. East flow will develop tomorrow with the approach of yet another system. The winds will be something to contend with during this entire storm cycle.

8:00am Start Time for Tuesday, March 8th, 2011

Warm Air Advection

Watch the freezing levels during the next few days.  A SW jet will allow warm air to move in. 

STEVENS PASS MOUTAIN WEATHER

3/7/2011 Weather


24HR FORECAST starting at NOON today

water - .25  Snow - 3-5
Freezing levels - 1500' rising 3000'
Winds 0-15 W shifting


General Discussion: Another active week of stormy weather will begin tomorrow with higher temperatures and snow.

Long-term: A series of systems tracking toward the PNW will continue to bring unsettled weather, with a generally warmer air regime, to the mountains through the week.


TRENDS AND TIMING
Precipitation: Snow will show up around 4am tomorrow morning and intensify through the day. There will be a break tomorrow evening with the next system tracking up from the south early Wednesday morning.

Freezing levels: Freezing levels will stay low through tonight and will rise during the day tomorrow as the front moves through. Rapid warming will be possible but surface temperatures shouldn’t reach freezing tomorrow. Watch for freezing levels to creep up to near pass level on Wednesday.

Winds: Westerly flow will briefly shift easterly tonight as the front approaches. Once the front moves through sometime tomorrow, winds will shift back from the west and become breezy for awhile.

Sunday Morning Coffee Discussion

The early March NW storm track is showing little sign of change.   Long range models continue to show solid cool NW flow with several low pressure systems developing on it tails. One would expect to begin to see "spring like" patterns emerge with the spring equinox just a few weeks away.  But for now, that doesn’t seem to be the case.   However, it is inevitable with the days getting longer and the sun arching higher in the sky, that pattern changes will begin.  So as the month progresses, watch for day time temperature to progressively rise along with High pressure events growing in length and strength.   Enjoy the March powder.

 
Thurs the 10th forecast model - notice NW oriented isobar and the cold air still well established in the north.  But also notice the high pressure cell in the 4 corners region pushing ridges into the PNW.  Case in point.

8:00am Start Time for Sunday, March 6th, 2011

STEVENS PASS MOUNTAIN WEATHER

3/5/2011 Weather


24HR FORECAST starting at NOON today

Water - .10  Snow 0-2
Freezing levels - 3000'  falling to 1500'
Winds - 0-10 W shifting E


General Discussion:  Last night storm moved through very fast and therefore lost its ability to produce.  Pressure is currently building in the upper atmosphere which will produce partly sunny skies today and tomorrow.

Long-term: Dry conditions will prevail through Monday. There is another system developing that will bring a chance of snow on Tuesday.


TRENDS AND TIMING
Precipitation: Light snow showers will linger in the mountains today. Dry conditions will develop tonight and remain through Tuesday morning.

Freezing levels: Freezing levels will continue to be well below pass level through the weekend. However, daytime sun and night time cooling will bring a wide range in surface temperatures.

Winds: Light westerly flow will shift easterly overnight. Winds will remain light through the weekend as well.

Start Time Saturday---6:15am

STEVENS PASS MOUNTAIN WEATHER

3/4/2011 Weather

24HR FORECAST starting at NOON today

Water - .5 -.75  6-8+
Freezing levels  3500' falling 2500'
Winds E shifting W 5-15mph


General Discussion: A fast approaching cold front will bring more snow to the mountains tonight.

Long-term: Snow will end tomorrow with dry (possibly sunny) conditions setting up for Sunday and the first part of the week.

TRENDS AND TIMING
Precipitation: Light snow will develop today. Snow intensity will increase tonight with the heaviest period between 7pm and 2am. Snow will taper off tomorrow with dry conditions expected through Tuesday. A short period of Convergence conditions will be possible, so snow totals could be bumped up a touch.

Freezing levels: Freezing levels will rise to 3500’ today and then fall in the wake of the cold front during the early morning hours. Surface temperature could be reach freezing today with the aid of the sun.

Winds: East flow will shift W tonight. Gusty westerly winds will accompany the front but should quickly mellow out tomorrow morning.

Start Time Friday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/3/2011 Weather

24HR FORECAST Starting at NOON today

Water - .25  Snow 2-5
Freezing levels - 1500' rising to 3000'
Winds - 0-10 W  shifting

General Discussion: Weak high pressure aloft will bring a brief lull in the snow activity tonight and tomorrow.

Long-term: Another organized front will bring more snow to the mountains tomorrow night and Saturday. The start of next week still appears to be dry.


TRENDS AND TIMING
Precipitation: These snow showers will start to taper off tonight. Tomorrow will be relatively dry with a few lingering snow showers lurking around.

Freezing levels: Freezing levels will stay low through the night and then begin to rise tomorrow. 3500’ FL’s will be possible by tomorrow afternoon.

Winds: Surface flow will swing back and forth between E and W. Winds aloft will be mainly W.

Start Time Thursday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/2/2011 Weather

24HR FORECAST starting at NOON today

Water - .25  Snow 2-4
Freezing Levels -  3500'  falling to 2500'
Winds 5-15 W gusty



General Discussion: Light snow showers and lowering freezing levels will follow a cold front today. There might even be a sun break or two this afternoon.

Long-term: This intermittent snow showers pattern will continue for the next few days. Another, more organized system, is expected to bring more snow late Friday and or Saturday. Sunday/Monday look dry at this point.

TRENDS AND TIMING
Precipitation: Intermittent snow showers will continue through Friday with just a few inches possible each day.

Freezing levels: Freezing levels will fall today to around 2500’. Freezing levels are expected to remain below pass level through Saturday.

Winds: East flow will swing west today in the wake of the cold front. It will be possible to receive a period of gusty winds today as the front passes through.

complex weather features

Several fast developing low pressure cells will create complex fronts in the PNW through the week.  Watch for spikes in temperatures and periods of heavy snow showers.   Rapid loading and fluctuating temperature trends will create a tricky snowpack. Be careful out there.

Start Time Wednesday---8:00am

STEVENS PASS MOUNTAIN WEATHER

3/1/2011 Weather


24HR FORECAST starting at NOON today

Water - .5  Snow 6-8
Freezing levels -  2500'  rising 3500'
Winds 0-10 ESE


General Discussion: Snow with warmer temperatures will continue today.

Long-term: Low pressure systems are expected to continue to develop off the NW coast. Therefore, expect this wintery pattern to continue into next week. However, there will be longer dry periods in between the fronts.


TRENDS AND TIMING
Precipitation: Light snow will continue today. Snow will intensify around 4am tomorrow and then become showery later in the day.

Freezing levels: Freezing levels will briefly rise to near pass level tonight. Temperatures will then fall in the wake of tomorrow’s cold front. East flow will help keep surface temperature below freezing.

Winds: Light east flow will continue to flow at the surface tonight and then shift SW tomorrow afternoon. Southerly flow aloft (>5k’) could be gusty at times.