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Sunday, August 24, 2008
Summer Avalanche
8/24/08 9:30 am
Reports from the Mont Blanc region this morning are of an avalanche on Mont Blanc du Tacul outside Grenoble, France. 10 missing and 8 hospitalized. The slide was started by an icefall at 11800'. Just a reminder that avalanches are not only reserved for winter, but they can occur at any point during the year. Icefall on snow is a perfect example of a trigger for a summertime release.
No chance of a slide in Tahoe for the foreseeable future. Although we do have weather coming as an unseasonably cold and strong low pressure system is developing in the Gulf of Alaska. We won't see any precip from this system, just wind, which has raised fire weather concerns throughout the Northern Sierra. Breezy conditions in town and windy conditions along the ridges tomorrow with the passage of the cold front which will also drop temps back to climatology.
24hr Forecast:
Sunny. Highs 78-88 with light winds increasing to SW 10-15mph in the afternoon
48hr Forecast:
Sunny. Highs 75-85. WINDY SW winds 10-25mph G45mph, 60mph on ridges
72+hr Forecast:
Sunny, Highs 71-81. Light winds
Temperatures next 24hrs:
Truckee- upper 70's/ low 80's
Tahoe City- mid-upper 70's
Tahoe Sierra Crest @ 8000'- upper 60's/ 70F
Winds next 24hrs: (direction/ mph)
Truckee- SW/ 10-15mph and increasing
Tahoe City- SW/ 10-15mph and increasing
Tahoe Sierra Crest @ 8000'- SW/ 10-20mph increasing to 30mph+, G60mph
Forecast snowfall next 24hrs:
Truckee- zero
Tahoe City- zip
Tahoe Sierra Crest @ 8000'- nada
Temps last 24hrs:
Truckee- highs mid 80's
Tahoe City- highs near 80F
Tahoe Sierra Crest @ 8000'- upper 60's
Winds last 24hrs: (direction/ mph)
Truckee- W/SW 5-15mph
Tahoe City- N/A
Tahoe Sierra Crest @ 8000'- 15-20mph G35mph
Snowfall last 24hrs:
Truckee- zero
Tahoe City- zip
Tahoe Sierra Crest @ 8000'- zilch
5-14 Day Outlook: PacNW system moves East of the region by Tuesday leaving a NE flow. Ridge rebuilds on Wednesday bringing dry, stable conditions with warming temps. Looking into Labor Day weekend, high pressure centered over 4corners region will spread upper level moisture to the Eastern Sierra, possibly as far North as Tahoe. Possible thunderstorms for the Mammoth area, for Tahoe right now, warm temps, afternoon zephyrs and the chance of thunderstorms (minimal @ this time)
Current NWS Lake Tahoe Forecast click here
Lake Tahoe Recreational Forecast here
CURRENT CONDITIONS:
Brought to you by http://www.porterstahoe.com/
Reports from the Mont Blanc region this morning are of an avalanche on Mont Blanc du Tacul outside Grenoble, France. 10 missing and 8 hospitalized. The slide was started by an icefall at 11800'. Just a reminder that avalanches are not only reserved for winter, but they can occur at any point during the year. Icefall on snow is a perfect example of a trigger for a summertime release.
No chance of a slide in Tahoe for the foreseeable future. Although we do have weather coming as an unseasonably cold and strong low pressure system is developing in the Gulf of Alaska. We won't see any precip from this system, just wind, which has raised fire weather concerns throughout the Northern Sierra. Breezy conditions in town and windy conditions along the ridges tomorrow with the passage of the cold front which will also drop temps back to climatology.
24hr Forecast:
Sunny. Highs 78-88 with light winds increasing to SW 10-15mph in the afternoon
48hr Forecast:
Sunny. Highs 75-85. WINDY SW winds 10-25mph G45mph, 60mph on ridges
72+hr Forecast:
Sunny, Highs 71-81. Light winds
Temperatures next 24hrs:
Truckee- upper 70's/ low 80's
Tahoe City- mid-upper 70's
Tahoe Sierra Crest @ 8000'- upper 60's/ 70F
Winds next 24hrs: (direction/ mph)
Truckee- SW/ 10-15mph and increasing
Tahoe City- SW/ 10-15mph and increasing
Tahoe Sierra Crest @ 8000'- SW/ 10-20mph increasing to 30mph+, G60mph
Forecast snowfall next 24hrs:
Truckee- zero
Tahoe City- zip
Tahoe Sierra Crest @ 8000'- nada
Temps last 24hrs:
Truckee- highs mid 80's
Tahoe City- highs near 80F
Tahoe Sierra Crest @ 8000'- upper 60's
Winds last 24hrs: (direction/ mph)
Truckee- W/SW 5-15mph
Tahoe City- N/A
Tahoe Sierra Crest @ 8000'- 15-20mph G35mph
Snowfall last 24hrs:
Truckee- zero
Tahoe City- zip
Tahoe Sierra Crest @ 8000'- zilch
5-14 Day Outlook: PacNW system moves East of the region by Tuesday leaving a NE flow. Ridge rebuilds on Wednesday bringing dry, stable conditions with warming temps. Looking into Labor Day weekend, high pressure centered over 4corners region will spread upper level moisture to the Eastern Sierra, possibly as far North as Tahoe. Possible thunderstorms for the Mammoth area, for Tahoe right now, warm temps, afternoon zephyrs and the chance of thunderstorms (minimal @ this time)
Current NWS Lake Tahoe Forecast click here
Lake Tahoe Recreational Forecast here
CURRENT CONDITIONS:
Truckee
Tahoe City
Reno
Local Mountain Remote Data
Surface Observations
Wind Chill Chart
NASA/JPL-UCD buoys
FORECAST LINKS:
National Weather Service Reno
WSFO Reno Discussion
Lake Tahoe Backcountry Forecast
RADAR:
PAC NW Radar
PAC SW Radar
SATELLITE IMAGERY:
4km IR Loop
16km IR Loop
Central CA 1km Visible
GOES-W 12hr WV
GOES 24hr NA WV
Precipitable Water Loop
Past Week's Estimated Precip
SNOWPACK INFORMATION:
Sierra Avalanche Center
Eastern Sierra Avalanche Center
California Department of Water Resources
SNOTEL Data
NOAA NOHRSC Interactive Snow Information
NWS Snowpack Analyses
Brought to you by http://www.porterstahoe.com/
// posted by PortersWeatherGuy @ 9:30 AM
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