Date: Mardi, 2 Avril 2002
Temps: 9h17
TUCKERMAN AND HUNTINGTON RAVINES HAVE CONSIDERABLE (CONSIDÉRABLE)
AVALANCHE DANGER. Natural avalanches are possible
and human triggered avalanches are probable. There
are unstable slabs on most of the steep slopes.
The summit picked up 5.8 inches of new snow ( 15
cm ) in the last 24 hours with west winds currently
at 63 MPH ( 100 KPH ) gusting to 72 MPH ( 120 KPH
), and a peak gust from the west at 108 MPH ( 170
KPH). The new snow combined with the strong west
winds have produced considerable loading in the
two ravines. With more new precipitation coming
in tonight as mostly rain the avalanche danger will
increase. The rain will add weight to the snowpack
and could cause the snowpack to fail resulting in
some large avalanches.
THE LION'S HEAD WINTER ROUTE IS OPEN. Please stay
on route to minimize climber impacts to the area.
This is critical to keeping the trail open and protecting
the resource. Consider it good practice to move
slow and thoughtfully with crampons on rock. This
is a difficult steep route so crampons, ice axe,
and mountaineering skills are an absolute necessity.
ON SATURDAY NIGHT WE RESCUED 4 INDIVIDUALS, ONE
OF WHICH WAS INJURED, DUE TO THE LACK OF APPROPRIATE
EQUIPMENT. MOUNTAINEERING BOOTS, CRAMPONS (not step
ins or sidewalk ice knubs), AND AN ICE AXE ARE NEEDED!!
BE AWARE OF FALLING ICE (GLACE EN CHUTE)! Due to it being both winter
and spring up here this hazard will come and go
with warm and cold temperatures. When it's warm
and sunny this hazard will increase and when it's
10 degrees F and blowing at 100 mph the hazard will
subside. Each year over 1000 tons of ice forms on
the headwall in Tuckerman Ravine. In the spring
it all comes down, often in pieces larger than cars.
Many folks have been injured and even killed by
falling ice (glace en chute). Pay attention to where you are, do
not linger under ice. Have a plan in mind about
what you will do if ice comes down. Station yourself
near a large rock to duck behind in the event of
ice fall. BE ICE SMART!
The John Sherburne ski trail has variable conditions
depending on weather the new snow has drifted onto
or been blown off the trail. Expect drier snow up
high with damp to wet snow on the lower trail.
PLEASE REMEMBER:
Any new precipitation may increase the avalanche
danger, this includes wind transported snow.
Obtain latest weather forecast before starting out.
For more information, contact the U.S. Forest Service
Snow Rangers: AMC at Pinkham Notch Visitor Center
or Hermit Lake Shelters.
This bulletin expires today at midnight and the
next avalanche bulletin will be issued tomorrow.
Brad Ray, Snow Ranger
USDA Forest Service
White Mountain National Forest
(603) 466-2713 TTY (603) 466-2856