THIS AVALANCHE ADVISORY EXPIRED ON March 25, 2017 @ 6:59 am
Avalanche Advisory published on March 24, 2017 @ 6:59 am
Issued by -
bottom line

The avalanche danger today will start out LOW. However, later this afternoon and into tonight, moderate to strong winds and new snow are in the forecast and the danger will rise to MODERATE due to human triggered wind and storm slabs being possible. As snow and wind continue over the weekend, make note of where the wind is blowing the new snow and pick terrain accordingly.

How to read the advisory

Avalanche Problem 1: Wind Slab
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With the incoming storm, south winds are forecasted in the 20 and 30 mph range. These winds combined with new snow will do good job of building new wind slabs on north facing and cross loaded terrain. Today and over the weekend, watch what the wind is doing. What direction is it coming from? Is it loading up high on the slopes, or is it blowing so hard that the snow is loading further down the slope or not loading at all?

Avalanche Problem 2: Loose Dry
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Forecasts are calling for 2-10 inches today and an additional 3-8 tonight depending on where you are in the PAC advisory area. This new snow will be falling on a multitude of different existing snow surfaces. The number one suspect surface to watch for over the weekend will be melt freeze crust. The new snow on crust will have a heck of a time bonding and will be ripe and ready to get pushed around. If only a few inches of snow falls, the problem will be merely dry loose sluffs, however, tonight and into tomorrow as the snow piles up storm slabs will take the place of what was small manageable sluffs.

advisory discussion

***This is the last daily avalanche advisory for the season.

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recent observations

No new natural or human triggered avalanches have been reported over the last 24 hours.

CURRENT CONDITIONS Today's Weather Observations From the Granite Weather Station at 7700 ft.:
0600 temperature: 27 deg. F.
Max. temperature in the last 24 hours: 33 deg. F.
Average wind direction during the last 24 hours: NW
Average wind speed during the last 24 hours: 7 mph
Maximum wind gust in the last 24 hours: 25 mph
New snowfall in the last 24 hours: 0 inches
Total snow depth: NA inches
Disclaimer

This avalanche advisory is provided through a partnership between the Payette National Forest and the Payette Avalanche Center. This advisory covers the West Central Mountains between Hard Butte on the north and Council Mountain on the south. This advisory applies only to backcountry areas outside established ski area boundaries. This advisory describes general avalanche conditions and local variations always occur. This advisory expires at midnight on the posted day unless otherwise noted. The information in this advisory is provided by the USDA Forest Service who is solely responsible for its content.