6-day Forecast Discussion Updated for Tuesday, September 7, 2010

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AVERAGE TEMPERATURES FOR THIS TIME OF YEAR;

-At 6,800 feet (Big Bear Lake); Low 43, High 76 (Highest ~ 85 in 1979, Lowest ~ 24+ in 1965)
-At 8,600+ feet (close to summit elevation); Low 41, High 68

::: COOLING TREND, WINDS DEVELOP :::

SUMMARY FOR THE WEEK -//> UPDATED FOR TUESDAY, SEPTEMBER 7th at 12:25am...Today -> A strong early season low pressure system drops south into the northwest US, and starts carving south into northern California, with south/ west winds and a cooling trend expected.

Wednesday and Thursday -> The strong early season low pressure system carves further south, with a deeper low pressure trough, winds, and highs barely into the 60's on Wednesday. It will feel more like fall, and upper mountain temperatures will be in the 40's with west winds much of the time.

Friday through Sunday -> A high pressure ridge builds in across the west, while lower pressure remains and continues across the northern tier states (WA/ ID/ MT). We expect warmer temperatures and mostly light breezes, under mostly sunny skies (except for some high clouds at times). CM

Tuesday Sep 07, 2010 Hi 72°f / 64°f (base/top) Lo 44°f / 53°f (base/top) Sky Condition: Mostly clear and cooler, with increasing south/ southwest winds. Precipitation: None expected. Snow Potential None expected. Wind: Increasing to S/ SW at 10 to 20 gusts to 30mph.	Wednesday Sep 08, 2010 Hi 63°f / 54°f (base/top) Lo 49°f / 46°f (base/top) Sky Condition: Mostly clear with a few clouds, and pretty strong southwest winds. Precipitation: None expected. Snow Potential None expected. Wind: Increasing to S/ SW at 20 to 30 gusts to 45mph.	Thursday Sep 09, 2010 Hi 61°f / 52°f (base/top) Lo 48°f / 44°f (base/top) Sky Condition: Mostly clear to partly cloudy and a bit chilly, with decreased winds. Precipitation: None expected. Snow Potential None expected. Wind: W at 10 to 20 gusts to 30mph.
Friday Sep 10, 2010 Hi 71°f / 62°f (base/top) Lo 28°f / 42°f (base/top) Sky Condition: Mostly clear and milder after a cold morning (base), with mostly light breezes. Precipitation: None expected. Snow Potential None expected. Wind: Variable at 4 to 12mph.	Saturday Sep 11, 2010 Hi 73°f / 66°f (base/top) Lo 34°f / 49°f (base/top) Sky Condition: Mostly clear and warmer, with mostly light breezes. Precipitation: None expected. Snow Potential None expected. Wind: Variable at 4 to 12mph.	Sunday Sep 12, 2010 Hi 64°f / 18°c (base) Lo 48°f / 9°c (base) Sky Condition: Clear Precipitation: None expected Wind: S at up to 5 mph.

Long range forecast / discussion...September 13 to 16

--High pressure ridging holds for most of next week, with warm temperatures (in the mid-upper 70's at resort base, just above average) and mostly light breezes. After the 15th (late next week), we see more strong low pressure developing across the northwest US from out of the Gulf of Alaska, so we will watch for possible surprises from this system.

There is a strengthening La Nina SST pattern that is expected to remain for the coming fall/ winter, through possibly the season following (through 2012). For the most part as a cut and dry rule this usually means drier than or near average winter snow for southern California resorts, but we expect colder than average temperatures. We will work up some comparisons of previous La Nina years, in preparation for the upcoming season. Please watch our Facebook page (and "fan us" if you like) for announcements and info; http://www.facebook.com/snowforecast.com. CM