Date: Mercredi, 10 Avril 2002
Temps: 9h45
TUCKERMAN AND HUNTINGTON RAVINES HAVE LOW (FAIBLE) AVALANCHE
DANGER. Natural avalanches are very unlikely and
human triggered avalanches are unlikely except in
isolated pockets on steep snow covered open slopes
and gullies. Normal caution is advised.
With summit temperatures hovering around freezing
today the snow may or may not soften up. Right now
in Tuckerman Ravine the temperature is 30 degrees
F and the snow has a frozen crust. This makes for
poor skiing but great sliding. If you fall on this
frozen surface on a
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AVERTISSEMENT
DANGER DE GLACE EN CHUTE
MASSIVE BLOCKS OF ICE THE
SIZE OF AUTOMOBILES
TRAVEL AT HIGH SPEEDS,
HIT ROCKS, AND SEND DEADLY
SHRAPNEL IN ALL DIRECTIONS
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BE ALERT - BE AWARE
BE ICE SMART
WHITE MOUNTAIN National Forest |
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steep slope chances are you
will have a very rapid uncontrolled decent. Let's
hope the stopping is slow and collision free.
Crevasses are begining to form on the headwall.
These can become very deep with a couple that reach
about 80 feet. There is undermined snow on the little
headwall and the lip. On the lip, stay close to
climbers right as the waterfall is on climbers left
and you want to avoid being anywhere near it. It
may be covered with a skim coat of snow. Remember,CLIMB
UP WHAT YOU PLAN ON COMING DOWN TO AVOID ANY SURPRISES
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 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.
MOUNTAINEERING BOOTS, CRAMPONS (not step ins or
sidewalk ice knubs), AND AN ICE AXE ARE NEEDED!!
The John Sherburne ski trail has good cover with
the thinner snow near the bottom. Watch for rocks
poking through the snow as melting continues.
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