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Discussion: Weather

in: BAOC Sierra Ski-O Champs (Jan 30 – Feb 7, 2010 - Truckee, CA)

Jan 15, 2010 2:54 AM # 
randallxski:
I love it. I plan a trip and then the severe weather alert is posted.

http://www.weather.com/weather/alerts/localalerts/...

Issued by The National Weather Service
Reno, NV
3:33 pm PST, Thu., Jan. 14, 2010

... SEVERAL STORMS TO AFFECT THE REGION NEXT WEEK...

A SERIES OF PACIFIC STORMS ARE LIKELY TO IMPACT THE WEST BEGINNING SUNDAY AND LASTING THROUGH NEXT WEEK. THE STORMS WILL BE DRIVEN ACROSS THE PACIFIC BY A STRONG JET STREAM WITH CORE WINDS OVER 200 MPH AND A COLD LOW PRESSURE SYSTEM IN THE GULF OF ALASKA.

OVER THE WEEK LONG PERIOD SIGNIFICANT PRECIPITATION IS LIKELY IN THE SIERRA WITH LESSER AMOUNTS IN THE WESTERN NEVADA VALLEYS. SNOW LEVELS SHOULD START AT 5000 TO 6000 FEET SUNDAY AND MONDAY THEN DROP TO 4500 FEET OR LESS BY TUESDAY. SEVERAL FEET OF SNOW IS PROBABLE IN THE SIERRA NEXT WEEK... WITH SNOW ACCUMULATIONS POSSIBLE ON THE WESTERN NEVADA VALLEY FLOORS MID WEEK.

STRONG WINDS WITH EACH SYSTEM ARE POSSIBLE OVER RIDGES... THROUGH MOUNTAIN PASSES AND IN PORTIONS OF WESTERN NEVADA. THE COMBINATION SNOW AND WIND IN THE SIERRA MAY CAUSE SIGNIFICANT TRAVEL DELAYS AND PERIODIC ROAD CLOSURES.

DUE TO THE UNUSUALLY FAST WINDS IN THE JET... THE TIMING AND STRENGTH OF EACH SYSTEM IS UNCERTAIN. MODELS CONTINUE TO BRING WAVES OF MOISTURE INTO THE SIERRA AND WESTERN NEVADA EVERY 24 HOURS... WITH THE STRONGEST SYSTEM POSSIBLE WEDNESDAY AND THURSDAY.
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