...A CHANGE IN THE WEATHER IS IN STORE FOR INTERIOR NORTHERN CALIFORNIA... ABOVE NORMAL TEMPERATURES OF THE PAST WEEK WILL BE REPLACED BY COOLER WEATHER ALONG WITH RAIN AND HIGH-ELEVATION SNOW BY TUESDAY AND WEDNESDAY. CHANCES OF PRECIPITATION WILL INCREASE BY TUESDAY NIGHT. THE RAIN AND SNOW WILL TAPER TO SHOWERS BY WEDNESDAY AFTERNOON. IMPACTS: *POSSIBLE TRAVEL DELAYS AND CHAINS REQUIREMENTS IN THE SIERRA NEVADA. *SLICK ROADWAYS COULD LEAD TO AN INCREASE IN TRAFFIC ACCIDENTS. SNOW LEVELS WILL BE HIGH WITH THIS SYSTEM SO ONLY THE HIGHER ELEVATION MOUNTAIN PASSES ARE EXPECTED TO BE AFFECTED BY ACCUMULATING SNOW. INTERSTATE 80 AND HIGHWAYS 50 AND 88 WILL LIKELY SEE SNOW ACCUMULATING ON THE ROADWAYS BELOW THE PASS LEVELS. MOTORISTS TRAVELING INTO THE NORTHERN SIERRA NEVADA SHOULD BE PREPARED FOR POSSIBLE TRAVEL DELAYS AND CARRY CHAINS. SNOW ACCUMULATIONS OF 4 TO 8 INCHES WILL BE POSSIBLE BELOW PASS LEVELS DOWN TO AROUND 6500 FEET WITH MINOR ACCUMULATIONS POSSIBLE BELOW THAT LEVEL. LOCALLY HIGHER AMOUNTS ARE POSSIBLE ALONG THE CREST. RAINFALL AMOUNTS WITHIN THE VALLEY WILL GENERALLY RANGE FROM A QUARTER TO A HALF AN INCH OF RAINFALL. RAINFALL AMOUNTS OVER THE FOOTHILLS WILL RANGE FROM ONE HALF TO ONE INCH OF RAIN WITH LOCALLY HIGHER AMOUNTS. ROADS WILL BECOME SLICK SO MOTORISTS SHOULD INCREASE FOLLOWING DISTANCES.