000 WWUS46 KSTO 081028 WSWSAC URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE SACRAMENTO CA 330 AM PDT SUN APR 08 2001 ...COLD AND UNSETTLED WEATHER WILL CONTINUE ACROSS NORTHERN CALIFORNIA TODAY... .ANOTHER WEATHER SYSTEM WILL MOVE SOUTHWARD ALONG THE NORTHERN CALIFORNIA COAST TODAY FOCUSING THE BRUNT OF SHOWER ACTIVITY OVER THE MOUNTAINS NORTH AND WEST OF THE SACRAMENTO VALLEY INTO THIS EVENING. ELSEWHERE ACROSS NORTHERN CALIFORNIA...A MOIST AND UNSTABLE AIRMASS REMAINS IN PLACE WHICH WILL ALLOW SCATTERED SHOWERS AND A FEW THUNDERSTORMS TO REDEVELOP BY THIS AFTERNOON. DUE TO THE UNSEASONABLY COLD NATURE OF THIS WEATHER SYSTEM...SNOW LEVELS WILL REMAIN LOW...GENERALLY AROUND 3000 FEET TODAY AND 2000 TO 3000 FEET TONIGHT. ANYONE PLANNING TRAVEL INTO THE MOUNTAINS TODAY SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS. CHECK THE LATEST ROAD CONDITIONS BEFORE DEPARTING BY CALLING CALTRANS AT 1-800-427-ROAD. CAZ013-063-064-082300- SHASTA LAKE AREA/NORTHERN SHASTA COUNTY- MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES- CLEAR LAKE/SOUTHERN LAKE COUNTY- 330 AM PDT SUN APR 08 2001 ...THE NATIONAL WEATHER SERVICE HAS ISSUED A SNOW ADVISORY FOR THIS AFTERNOON AND THIS EVENING... SHOWERS WILL REDEVELOP ACROSS THE AREA DURING THE MORNING AND CONTINUE INTO THIS EVENING. A FEW THUNDERSTORMS MAY ALSO DEVELOP THIS AFTERNOON ACCOMPANIED BY BRIEF HEAVY SNOW SHOWERS. SNOW LEVELS WILL GENERALLY BE AROUND 3000 FEET TODAY...LOWERING TO 2000 TO 3000 FEET TONIGHT. ACCUMULATIONS OF 3 TO 6 INCHES ARE POSSIBLE ABOVE 3000 FEET THROUGH MIDNIGHT...WHILE ACCUMULATIONS OF 2 TO 4 INCHES ARE POSSIBLE AS LOW AS 2000 FEET. $$ ROWE