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Turnagain Area Avalanche Advisory
Saturday, December 26th 2009 6:11 am by CNFAIC Staff
ARCHIVED ADVISORY - All advisories expire after 24 hours from the posting date/time.
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BROUGHT TO YOU BY
The Bottom Line
Good morning backcountry travelers this is Carl Skustad with the Chugach National Forest Avalanche Information Center on Saturday, December 26 at 7 am. This will serve as a general backcountry avalanche advisory issued for the Turnagain Arm area with Turnagain Pass as the core advisory area (advisory does not apply to highways, railroads, or operating ski areas).

ANNOUNCEMENTS
Placer River will close to motorized use do to heavy rains.

WEATHER ROUNDUP
Current alpine winds are averaging 10 to 30 and gusting 30-40 out of the SE. Rain fell in most of the advisory area yesterday. Limited snow accumulations due to the high rain line. 3-6 inches fell above 2500 feet. Strong winds continued yesterday.

-The Center Ridge Wx Station at 1800 feet/Turnagain Pass-
recorded 0 inches of new snow and .5 inches of water in the last 24 hours. The current temp is 31 F (5 degrees colder than yesterday) with a total snowpack depth of 63 inches, down 5 inches since yesterday.

-The Sunburst Wx Station at 3800 feet/Turnagain Pass-
is showing 16 mph winds out of the E, with gusts of 24-54 mph. The current temperature is 25 deg F

-The Summit Lake Wx Station at 1200 feet-
recorded 0 inches of new snow and .1 inches of water in the last 24 hours. The current temp is 32F ( 2 degrees colder than yesterday) with a total snowpack depth of 31 inches, 2 less than yesterday.

-The Fresno Ridge Wx Station at 3400 feet/Summit Lake-
is showing 26 mph winds with gust of 28-47 mph out of the SE.

Two low pressure systems in the gulf continue spinning shortwave precipitation at us. Heavy cloud cover and precip on the radar and satellite again this morning. Expect more rain and soggy conditions today. The snow line dropped slightly last night to 2000 ft. Rain continues to fall at the highway elevation in Turnagain Pass.

The weather forecast for:
WESTERN PRINCE WILLIAM SOUND-
INCLUDING...WHITTIER...SEWARD...GIRDWOOD...MOOSE PASS

500 AM AKST SAT DEC 26 2009

.TODAY...RAIN. HIGHS IN THE MID 30S TO LOWER 40S. NORTH AND EAST WIND
TO 15 MPH EXCEPT EAST 20 TO 30 MPH THROUGH PORTAGE VALLEY AND
TURNAGAIN ARM.
.TONIGHT...RAIN AND SNOW. NO SNOW ACCUMULATION. LOWS IN THE 30S.
NORTH AND EAST WIND TO 15 MPH EXCEPT EAST 25 TO 35 MPH THROUGH
PORTAGE VALLEY AND TURNAGAIN ARM.
.SUNDAY...RAIN. HIGHS IN THE MID 30S TO LOWER 40S. NORTH TO EAST WIND
TO 10 MPH EXCEPT EAST 20 TO 30 MPH THROUGH PORTAGE VALLEY AND
TURNAGAIN ARM.
.SUNDAY NIGHT...RAIN AND SNOW SHOWERS. LOWS IN THE 30S. EAST WIND 10
TO 15 MPH.
.MONDAY...CLOUDY WITH ISOLATED RAIN AND SNOW SHOWERS. HIGHS IN THE
30S. EAST WIND 10 TO 15 MPH.
.MONDAY NIGHT...MOSTLY CLOUDY. LOWS 25 TO 35.

TEMPERATURE / PRECIPITATION

SEWARD 41 37 39 / 80 80 80
GIRDWOOD 42 40 40 / 80 80 80


AVALANCHE DISCUSSION
Today's avalanche hazard is MODERATE. Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully. Natural avalanches unlikely; human triggered avalanches possible.

We obviously have some crazy warm weather and precip working on our snowpack. We have a couple of weak layers in our snowpack. The surface hoar buried 1-2 feet and the recent storm snow interface. I think that the strong winds have hammered our snowpack long enough that there is little snow left for transport. All the SE aspects are stripped of snow.


Lisa will issue the advisory tomorrow morning at 7am. If you get out in the backcountry give us a call at 754-2369 or send us your observations using the button at the top of this page


 Show the Complete North American Avalanche Danger Scale
2 Moderate Alpine / Above 2,500' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
2 Moderate Treeline / 1,000'-2,500' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
2 Moderate Below Treeline / Below 1,000' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.

This is a general backcountry avalanche advisory issued for Turnagain Arm with Turnagain Pass as the core advisory area (this advisory does not apply to highways, railroads, or operating ski areas).

Winter snowmachine use open/closed status and riding conditions updates

Riding status is not associated with avalanche danger. An area will be open to motorized use in accordance to the Forest Management Plan when snow coverage is adequate to protect underlying vegetation. Backcountry hazards including avalanche hazard are always present regardless of the open status of motorized use areas.

(Updated: Jan 13, 2019 )

AREA STATUS WEATHER AND RIDING CONDITIONS
Glacier District
Johnson Pass: Open
Placer River: Open
Skookum Drainage: Open
Turnagain Pass: Open
Twentymile: ClosedClosed. Forest Service is monitoring conditions.
Seward District
Carter Lake: Open
Lost Lake Trail: OpenPlease stay on trail to avoid resource damage through forested areas.
Primrose Trail: OpenPlease stay on trail to avoid resource damage through forested areas.
Resurrection Pass Trail: ClosedClosed for the 2018/19 season. Next season will be open to motorized use.
Snug Harbor: Open
South Fork Snow River Corridor: Open
Summit Lake: Open

Subscribe to the Turnagain Area Avalanche Advisory:

The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur. This advisory provided by the Chugach National Forest, in partnership with Friends of the Chugach National Forest Avalanche Information Center.


USFS SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments or questions regarding CNFAIC operations or winter recreation management, please email staff@chugachavalanche.org
© 2019 Chugach National Forest Avalanche Information Center. All rights reserved.
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