Briefing for Winter Storms Dec 21 – Dec 23, 2012
A SERIES OF PACIFIC STORMS WILL TRACK ACROSS NORTHERN CALIFORNIA THURSDAY THROUGH THE WEEKEND BRINGING PERIODS OF MODERATE TO HEAVY SNOW IN THE MOUNTAINS AND GUSTY WINDS. SNOW LEVELS WILL INITIALLY BE IN THE FOOTHILLS THURSDAY WITH SNOW POSSIBLE ABOVE 500 FEET IN THE NORTHERN SACRAMENTO VALLEY. SNOW LEVELS WILL GRADUALLY RISE TO 3000 TO 4500 FEET BY SATURDAY WITH LITTLE CHANGE INTO SUNDAY. SNOW ACCUMULATIONS OF 2 TO 6 FEET ARE POSSIBLE OVER THE HIGHER MOUNTAIN TERRAIN THROUGH THE WEEKEND. DRIER WEATHER IS EXPECTED EARLY NEXT WEEK. ...WINTER STORM WATCH NOW IN EFFECT FROM FRIDAY MORNING THROUGH SUNDAY MORNING ABOVE 4000 FEET... * SNOW ACCUMULATIONS: 2 TO 5 FEET OVER HIGHER TERRAIN. * TIMING: MODERATE TO HEAVY SNOWFALL BEGINS NORTH OF INTERSTATE 80 EARLY FRIDAY AND SPREADS SOUTHWARD LATER FRIDAY. MODERATE TO HEAVY SNOW WILL CONTINUE THROUGH MOST OF THE WEEKEND. * WINDS: SOUTH 15 TO 30 MPH WITH GUSTS UP TO 65 MPH OVER HIGHER TERRAIN.
Thursday Night: Snow, mainly after 4am. Low around 21. South wind around 20 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Friday: Snow. High near 30. South wind around 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Friday Night: Snow. Low around 25. South wind 17 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday: Snow. High near 31. Breezy. Chance of precipitation is 100%. New snow accumulation of 10 to 14 inches possible.
Saturday Night: Snow. Low around 21. Breezy. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday: Snow. Cloudy, with a high near 28. Breezy.
Sunday Night: Snow showers. Mostly cloudy, with a low around 19.
Monday: A chance of snow showers. Partly sunny, with a high near 29.