Date: Saturday, February 23, 2002
Time: 9:27 a.m.
TUCKERMAN AND HUNTINGTON RAVINES BOTH HAVE LOW
AND MODERATE AVALANCHE DANGER. In TUCKERMAN RAVINE
the Little Headwall and the Lower Snowfields have
LOW 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. All other areas in TUCKERMAN
have MODERATE avalanche danger. Natural avalanches
are unlikely and human triggered avalanches are
possible. Use caution in steeper terrain. In HUNTINGTON
RAVINE South and Central gullies have MODERATE avalanche
danger. Natural avalanches are unlikely and human
triggered avalanches are possible. Use caution in
steeper terrain. All other areas in Huntington have
LOW avalanche danger. Human triggered avalanches
are unlikely except in isolated pockets.
The summit received 2 inches (5 cm) of new snow
out of the W and WNW at between 30-50 mph (50-80
kph). Precipatation began as grapel with light winds,
but as the day continued winds increased generating
a slab over this loose unconsolidated layer. This
new slab has enough elastic properties to propagate
shooting cracks which is disconcerting considering
the underlying loose grapel. So..stay to the old
ice surface whenever possible to avoid these areas
of new snow. Some areas such as South and Central
gullies in Huntington have Moderate avalanche danger
due to the instability of this new snow. I believe
with some route finding skill these locations could
be climbed without excessive risk. However, close
your mind to snow instability and wander into new
snow and you could get in trouble. So keep your
eyes open today and you should have a safe fun day.
Due to the icy surface in many locations crampons,
an ice axe, and mountainering skills are needed
for safe travel.
Another ice dam blew out in Damnation gully earlier
this week sending a climber down slope. Luckily
he was caught by his belayer and was uninjured.
Water running from ice tool placements have been
reported in numerous locations so be cautious for
hydrolic pressure and ice dams in commonly found
areas such as over the top of bulges and steep columns.
THE LION'S HEAD WINTER ROUTE IS OPEN. Follow the
orange Lion Head signs off of the Tuckerman Ravine
trail about 1.75 miles up from Pinkham. This is
a difficult steep route so crampons, ice axe, and
mountaineering skills are essential.
The ski trail is covered, but not by much, so expect
frozen conditions with a stray rock here and there.
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.
Christopher Joosen, Snow Ranger
USDA Forest Service
White Mountain National Forest
(603) 466-2713 TTY (603) 466-2856