6:31 a.m., Tuesday, November 12, 2002 THIS IS AN EARLY SEASON 'GENERAL ADVISORY'. We will likely go back and forth between General Advisories and 5 scale ratings until we need to go to a daily bulletin. If a 5 scale bulletin is issued it expires at midnight on the day of issue and you can expect another bulletin the following morning. When a General Advisory is posted another bulletin may or may not be issued the following day depending on conditions. Climbers heading into Huntington should check the avalanche bulletin before leaving Pinkham Notch or Hermit Lake each morning. Until the Harvard Cabin opens on December 1st the avalanche bulletin will not be posted there due to no campers being there overnight. On Sunday, three weather models used by the National Weather Service conflicted with one another on how Monday would play out. By late Sunday it all came together and the storm that brought so much devastation to Southern States played out like clock work here in the Mount Washington Valley. As of midnight the summit received 1.12 inches of rain in the preceding 24 hours, the heaviest falling around 3:00 pm. Once it clears up we will see how much snow loss occured and if any avalanche activity resulted from the warm temperatures and heavy rain. After 4 days of rapid settling culminating with over an inch of rain, I believe that if avalanche activity was to occur, Monday would of been the day. For these reasons a Considerable rating was issued for Veterans Day. The snowpack should continue draining today before getting hit on and off with showers all the way into next weekend! Expect some breaks here and there through the week, but it appears the word for the week will be 'rain'. After taking on over an inch of rain I think the snowpack should handle showers ok on and off through the week. However, as always be very conservative during steady, prolonged, or heavy rain. As discussed earlier this week, rain is such a strong factor influencing avalanche activity that you should really assess what you're doing there at all. As the saying goes, if it rains in avalanche terrain it's time to go home. One factor we will watch through the week is freezing temperatures on the higher summits. As the Valley gets shower activity we may get some frozen precipitation or snow up high which may generate some isolated areas of instability. Depending on when exactly snow begins, relative to temperature, will make an enormous difference. If snow begins after freezing temperatures it may fall on a hard icy surface making for a poor bond at the interface. But if snow begins before the old surface has a change to freeze a better bond is likely to occur. So constantly evaluate snowpack stability, never become complacent. Be aware of FALLING ICE. Expect ice to detatch from warming rock particularly in thin areas. Ice climbing should be much more hazardous than usual with temperatures above freezing and rain forecasted for the week. Many visitors have been injured and killed by falling ice so pay attention to where you are and don't linger under potential icefall. Remember if the snowfield is large enough to ski or recreate on it's large enough to avalanche. AS ALWAYS, THIS BULLETIN IS ONE MORE TOOL TO HELP YOU MAKE YOUR OWN DECISIONS IN AVALANCHE TERRAIN. It should be used along with your own snow stability assessments, knowledge of safe travel techniques, skill in mountain weather's effect on the snowpack, and avalanche rescue. Pull out your beacon and practice, ONLY YOU CAN SAVE YOUR PARTNER!! Review your safe travel rules, techniques for assessing snow stability, and sign up for an avalanche course. We have all the avalanche courses offered in the valley this winter on our website, csac.org. PLEASE REMEMBER: o Any new precipitation may increase the avalanche danger, this includes wind transported snow. o Obtain latest weather forecast before starting out. o For more information, contact the U.S. Forest Service Snow Rangers: AMC at Pinkham Notch Visitor Center or Hermit Lake Shelters. o This General Advisory will be updated as needed. Christopher Joosen, Snow Ranger USDA Forest Service White Mountain National Forest