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Avalanche Advisory
| Advisory: Ogden Area Mountains | Issued by Paige Pagnucco for Saturday - March 25, 2017 - 5:49am |
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bottom line The avalanche danger is MODERATE today as winds and snow will create heightened avalanche conditions at upper elevations for wind slabs and cornices. At mid and low elevations, conditions are generally safe and the avalanche danger is LOW.
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special announcement “I try to do the right thing at the right time. They may just be little things, but usually they make the difference between winning and losing.” - Kareem Abdul Jabbar Be sure to check out the last installment of the The Little Things - habits that might keep you alive, a four part series of tricks and tidbits to help keep you on top picked up by one of our observers during years of mostly incident-free wandering in the backcountry by ski, foot, and boat. |
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current conditions If you don't like the weather, just wait a day, so if you liked the sun and warmth yesterday, it's not likely you'll be too excited to get out today. Mountain temperatures are in the mid 30's F and winds, which were strong from the southwest overnight, have relaxed a little and are now northwest at 10-15 mph with ridgetop gusts a bit higher. It is snowing in the mountains and raining at the lower elevation trailheads. Riding conditions will be a mixed bag today with crusts, damp snow and a bit of new, drier snow. The sun managed to dampen the snow yesterday on most aspects and elevations save due north shaded terrain. |
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recent activity Observers noted minor wind slab activity yesterday at upper elevations as well as wet activity once temperatures warmed. We were able to easily initiate shallow pushalanches on sun-affected steep slopes that entrained more snow as they descended. |
Avalanche Problem 1
| type | aspect/elevation | characteristics |
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LIKELIHOOD
 LIKELY
UNLIKELY
SIZE
 LARGE
SMALL
TREND
 INCREASING DANGER
SAME
DECREASING DANGER
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description
With a winter weather advisory for the Ogden mountains, expect to see wind drifts develop, especially in upper elevation terrain. Because the existing snow surface is variable some areas will see good bonding while others may slide on previously scoured, frozen surfaces. Look for obvious signs of instability like cracking or collapsing. Avoid steep slopes with freshly wind drifted snow. Depending on how the new snow bonds to the existing snow as well as itself, you may also see loose dry activity as the day progresses. Observe how the snow behaves, especially on steeper slopes. If it sluffs easily, you'll want to avoid that terrain. |
Avalanche Problem 2
| type | aspect/elevation | characteristics |
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LIKELIHOOD
LIKELY
UNLIKELY
SIZE
 LARGE
SMALL
TREND
INCREASING DANGER
SAME
DECREASING DANGER
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description
Cornices: Cornices will get a bit bigger today with forecast snow and wind. Signs of failing cornice like cracks will be hidden beneath the new snow today and hard to identify. Avoidance is key – don’t travel beneath cornices and stay well back from the edges. Cornices tend to break well back onto what looks like flat terrain. |
Avalanche Problem 3
| type | aspect/elevation | characteristics |
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LIKELIHOOD
 LIKELY
UNLIKELY
SIZE
LARGE
SMALL
TREND
 INCREASING DANGER
SAME
DECREASING DANGER
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description
With temperatures expected to be cooler but still above freezing there is still a chance, albeit minimal, for triggering loose wet avalanches today. Without direct heating from the sun and relatively cool forecast temperatures, any wet activity will be limited to steep slopes where the snowpack is still very saturated. If the sun does manage to peak through today, the likelihood for wet avalanches will increase. |
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weather Snow fall amounts today will be about 3-6 inches with the rain/snow line around 7000 feet. Snowfall should end late today with clear sunny skies for Sunday. Temperatures today will rise into the mid 30's F but a lack of sunshine and a passing cold front will keep it from feeling very warm. Today's winds will be gusty and shift from the SW to NW by late today. They will average 10 mph but gusts will be a bit stronger.
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general announcements
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