Medicine Bow Nordic Ski Patrol
Patrol Log: Saturday-Sunday, April 3--4, 1999:
T. Thibodeau
Saturday, April 3
I skied with a party of four into the Little Brooklyn Lake Ranger Station
on Friday night. We left the ranger station about 9:00 am Saturday morning
and skied to Brooklyn Lake. We then skied around Brooklyn Lake to the
North Twin Lakes and back to the ranger station for lunch. The temperature
was in the high teens to the low 20s with snow, overcast skies, and gusty
winds. We encountered two skiers and numerous snowmobilers during the
morning. In the afternoon we skied from the ranger station to Towner
Lake and back down the Telephone Creek drainage to the ranger station.
We encountered no people during this ski.
We dug a snow pit on a north facing slope in the North Twin Lakes
bowl (SW, NE, SW, Sec 2, T16N, R79W). The slope had about a 25 degree
slope and was oriented almost due north. We dug the pit to 6 ft and
did not reach the ground. The surface temperature (T) of the snow
was -4 Celsius (C). At 10 centimeters (cm) the T dropped to -6 C.
At 20 cm the T dropped to -7 C. The T remained at -7 C until the 80 cm
level where the T raised to -5 C. The T remained at -5 C to the bottom
of the pit (180 cm). From the surface to the 18 cm mark there was
unconsolidated snow that had fallen within the last 24 hours.
From 18-31 cm there was layer of loosely consolidated four finger snow.
From 31-52 cm there was a two finger layer. From 52-89 cm there was
a one finger block. From 89-112 cm there was a block of pen snow.
From 112-139 cm there was a one finger block. From 139-180 cm there
was another one finger block. A shovel shear test revealed shear
plains between each of the layers discussed above. The snow pack
would appear to be very stable at this location.
Sunday, April 4
I stayed with a party of four at the Little Brooklyn Lake Ranger
Station on Saturday night. We left the ranger station about 9:30
Sunday morning and skied to the North Twin Lakes bowl and made some
turns. The skies were clear and the temperature was in the high
20s in the morning. The temperature dropped into the lows 20s
in the afternoon and it started to snow about 2:00. We returned
to the ranger station for a late lunch and then skied to the
Green Rock trail head.
When I left at 3:30 there were 43 vehicles at the Green Rock
trail head, two vehicles at the Little Laramie trail head
two vehicles at the Corner Mountain trail head, and one
vehicle at the bottom of the Barber Lake Road.
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Page last modified April 5, 1999
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