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Avalanche Advisory for 2013-02-17 08:04:28
- EXPIRED ON February 18, 2013 @ 8:04 amPublished on February 17, 2013 @ 8:04 am
- Issued by Nick Meyers - Shasta-Trinity National Forest
Bottom Line
Overall, avalanches are unlikely today in the forecast area. A variety of conditions will 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 recent 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!
Avalanche Problem 1: Normal Caution
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Character ?
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Likelihood ?CertainVery LikelyLikelyPossible
Unlikely -
Size ?HistoricVery LargeLargeSmall
Avalanches unlikely today. More sunshine and daytime warming will give us soft corn snow on some southerly aspects, depending on elevation. Any snow instabilities will be limited to roller balls and the off chance of point releases.
Recent Observations
No recent avalanche observations.
WEATHER STATIONS:
In Mt. Shasta City at 0500, we have mostly clear skies and a current temperature of 32 F.
On Mt. Shasta: In the Old Ski Bowl (7,600') on the south side of Mt. Shasta, we have a current temperature of 23 F. Snow on the ground totals 96" inches with no new snow and little settlement. Temperatures have ranged from 20 F to 43 F in the last 24 hours. At Grey Butte (8,000') on the south side of Mt. Shasta winds averaged 15 mph from the NW with a max gust of 35 from the NW. The current temperature is 26 F and temps have ranged 24 F to 41 F.
Castle/Mt. Eddy: Castle Lake - Castle Lake is hosting a current temp of 24 F. In the last 24 hours temperatures have ranged from 23 F to 54 F. Snow depth measures 44" inches with no new snow and little settlement. On Mt Eddy, we have 61" inches of snow on the ground with no new snow and little settlement. The current temperature reads 22 F with temps ranging from 21 F to 45 F in the last 24 hours. Winds have been variable, averaging 2 mph and gusting to 9 mph from the SW.
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
| 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 | Sunny | Partly cloudy | Partly to mostly cloudy with chance of snow after 4pm |
| Temperature (°F) | 40 | 22 | 32 |
| Wind (mi/hr) | Northwest 10-15 mph | Northwest, becoming Southwest after midnight 10-15 | Southwest 15-25 |
| Precipitation SWE / Snowfall (in) | / 0 | / 0 | / Less than 1 inch |
| For 9000 ft to 11000 ft | |||
| Sunday | Sunday Night | Monday | |
| Weather | Sunny, breezy | Partly cloudy, breezy | Mostly cloudy with a chance of snow showers after 4pm |
| Temperature (°F) | 32 | 17 | 24 |
| Wind (mi/hr) | Northwest 25-35 mph with higher gusts | Northwest, becoming Southwest after midnight 0 | Southwest 30-40 mph with gusts higher |
| Precipitation SWE / Snowfall (in) | / 0 | / 0 | / Less than 1 inch |
