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Avalanche Advisory for 2013-02-17 07:02:24

  • EXPIRED ON February 18, 2013 @ 7:02 am
    Published on February 17, 2013 @ 7:02 am
  • Issued by Nick Meyers - Shasta-Trinity National Forest

Overall, avalanches are unlikely today in the forecast area. A variety of conditions will can be found out there with most areas trending on the firm side. Wind slabs have bonded well to the widespread crust layer and are not a concern. A thick layer of facets still exists below our thick crust, however we do not have any slabs above this layer from our observations. With plentiful sunshine, any southerly aspect should warm nicely and any instability will be limited to roller balls during the warmest portion of the day. Other aspects will remain firm and funky!

Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.

Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.

Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.

Avalanche Problem 1: Wet Slab

  • Character ?
  • Likelihood ?
    Certain
    Very Likely
    Likely
    Possible
    Unlikely
  • Size ?
    Historic
    Very Large
    Large
    Small

Wet snow avalanches unlikely today. More sunshine and daytime warming will give us soft corn snow on some southerly aspects, depending on elevation.  Any wet snow instabilities will be limited to roller balls and the off chance of point releases.

Weather and Current Conditions

Weather Summary

More clear and sunny skies will continue today, though a change in the weather pattern should begin this coming week. While precipitation totals do not look impressive, a pattern of wet weather is in store. Snow levels will be near town or lower with cold air dropping into the area.  The first round of precip should arrive Monday night. Scattered showers will persist through the week.


http://www.wrh.noaa.gov/total_forecast/getprod.php?pil=REC&sid=MFR&wfo=mfr

CURRENT CONDITIONS at Bunny Flat (6950 ft)
0600 temperature: 23
Max. temperature in the last 24 hours: 43
Average wind direction during the last 24 hours: NW
Average wind speed during the last 24 hours: 15 mi/hr
Maximum wind gust in the last 24 hours: 35 mi/hr
New snowfall in the last 24 hours: 0 inches
Total snow depth: 96 inches

Two Day Mountain Weather Forecast

Produced in partnership with the Medford NWS

For 7000 ft to 9000 ft
  Sunday
(4 a.m. to 10 p.m.)
Sunday Night
(10 p.m. to 4 a.m.)
Monday
(4 a.m. to 10 p.m.)
Weather Clear and Sunny Clear, becoming cloudy Partly Cloudy
Temperature (°F) Mid - 40's Mid - 20's Mid - 40's
Wind (mi/hr) North 10-15 mph East light South 10-15 mph
Precipitation SWE / Snowfall (in) / 0 / 0 / 0
For 9000 ft to 11000 ft
  Sunday Sunday Night Monday
Weather Sunny Clear, Breezy Chance of snow, after 4pm
Temperature (°F) 32 17 24
Wind (mi/hr) North 25-35 mph with gusts higher Northwest, becoming Southwest 0 Southwest 25-35 mph, increasing in the afternoon
Precipitation SWE / Snowfall (in) / 0 / 0 / 1-2

Disclaimer

This advisory does not apply to Ski Areas or Highways and is for the Mt. Shasta, Castle Lake and Mt. Eddy back country. Use this information for guidance only. You may find different conditions in the back country and should travel accordingly. This advisory expires on midnight of the date it was posted unless otherwise noted.