Date: Tuesday, March 12, 2002
Time: 10:03 a.m.
TUCKERMAN RAVINE HAS BOTH LOW AND MODERATE AVALANCHE
DANGER. The Little Headwall, the Lower Snowfields,
Hillmans Highway, Left Gully, and Right Gully all
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. Normal caution
is advised. All other areas in Tuckerman have Moderate
avalanche danger. Natural avalanches are unlikely
and human triggered avalanches are possible. Use
caution in steeper terrain.
HUNTINGTON RAVINE HAS LOW AVALANCHE DANGER. Natural
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WARNING
ICE FALL DANGER
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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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.
Hermit Lake received about 1 inch (2.5 cm) of new
snow and the summit picked up only 0.6 inches (1.5
cm). Currently we are witnessing snow showers and
west winds so anticipate new loading in both Ravines.
Winds have subsided considerably since yesterday
so expect new snow to deposit in areas that was
being blown clean previously. It depends on how
much snow this fast moving system generates, but
EXPECT AN INCREASING AVALANCHE DANGER THROUGH THE
DAY. If precipatation stays consistant today expect
the possibility of areas to bump up a rating. I.e.
Low to Moderate and Moderate to Considerable. Don't
forget about the slick surface snow has and will
be depositing onto through the week. A weak interface
between layers is likely as the ice crust would
make an excellent bed surface for avalanche activity.
Expect to find unstable slabs in strong lee areas
protected from the winds. Some examples, but not
limited to,under the ice on the Headwall, under
the Lip, cross loaded areas in the Sluice, and the
top of South gully in Huntington. Basically both
the old ice surface and new areas of slab can be
found in the Ravines depending on where you are.
Sunday's rain generated a very slick surface for
the new snow currently loading so watch for the
unstable slabs in strong lee areas discussed earlier
. This crust should also send a falling climber,
skier, or hiker to mach 1 within seconds and perhaps
to light speed, so travel carefully and have crampons
and an ice axe.
ICE DAM development should be one of the primary
hazards for ice climbers in the Ravines. Be cautious
for hydrolic pressure and ice dams in commonly found
areas such as over the top of bulges and steep colums.
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. Use caution
on the trail as there are areas where the rocks
are showing. Please stay on route to minimize climber
impacts to the area. 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 essential.
The ski trail has full coverage but is quite thin,
so watch for an occasional rock sticking through.
Expect a hard frozen trail under a veneer of snow.
There are sections of water ice that maybe hidden,
especially on the lower third of the trail.
PLEASE REMEMBER: