Good morning, this is Sue Burak with the Eastern Sierra Avalanche Center with an avalanche advisory posted for Sunday, March 16, 2008. There will be two more events this season. I will be talking about the Madden Julian Oscillation and the energy balance of the snowpack at the White Mountain Research Station in Bishop. Dates and times will be posted this week. MOUNTAIN WEATHER After a cold and windy day Saturday, today wont be much different with snow showers expected off and on until mid day. Daytime highs will reach the mid 20s at the 8,000 and 9,000 ft elevations. Higher elevations will be cold with highs in the teens. As strong north and northeast winds continue throughout the day, wind chills will be in the single digits. Expect little if any, snow to accumulate. There is a High Wind Watch in effect from this morning until tonight for the eastern slopes of the Sierra, the Owens Valley and White Mountains. North winds between 20 and 30 mph with gust to 45 mph are likely on Sunday with occasionally gusts in the 60 mph range. The upcoming week will be mostly sunny and dry with storms passing to the north of the area. Longer range forecasts show a change to a wet and very active weather pattern the last week of March into April. The Madden Julian Oscillation is returning though it is too far out to know if our area will receive significant snowfall. If the current MJO behaves like the December and January events, there is a good chance there will be a return to winter. SNOWPACK AND AVALANCHE DISCUSSION Since Thursday, about 4-7 inches of new snow has accumulated at elevations above 9,000 ft from Leavitt Lake to Rock Creek. South of Rock Creek only an inch or so has fallen. Winds over the last two days have moved snow around to both southern and northern aspects. North winds can strip ridgetops but also can eddy and deposit snow onto north facing slopes, especially in sheltered gullies and couloirs. Not much snow has fallen but it is dry and light and has fallen on old crusts, hard wind slabs and recrystallized faceted snow above 10,000 ft. Any periods of direct sun today will make the snow on steep southeast and south facing slopes moist with a possibility of point release wet sluffs. The avalanche danger rating today is LOW on all aspects below 9,000 ft. The avalanche danger rating is LOW above 9,000 ft in none wind loaded terrain. The avalanche danger rating is MODERATE on steep south to north facing slopes with deposits of wind drifted snow. BOTTOM LINE The avalanche danger rating today is LOW on all aspects below 9,000 ft. The avalanche danger rating is LOW above 9,000 ft in none wind loaded terrain. The avalanche danger rating is MODERATE on steep south to north facing slopes with deposits of wind drifted snow. Please note that the avalanche danger rating in this advisory expires in 24 hours. This advisory is our best interpretation of snow pack conditions and NWS forecasts issued today. Backcountry travelers should be aware that elevation and geographic distinctions are approximate and that a transition zone exists between upper and lower elevations. Avalanches do not happen by accident and most human involvement is a matter of choice not chance. Most avalanche accidents are caused by slab avalanches that are triggered by the victim of member of the victim's party. Even small slides can be dangerous. Always practice route finding skills and carry avalanche rescue gear. Remember that avalanche danger ratings are only general guidelines. Distinctions between geographic areas, elevations, slope aspects and slope angles should be made.