At 3:30pm today, NOAA increased their snow total forecast for the Sierra Nevada mountains of California for the storm that is currently impacting the Sierra.
“With models projecting a wetter and slower system, it was necessary to RAISE snow totals across the region.” – NOAA Reno, NV today
6-12″ of snow is now forecast for Truckee, South Lake Tahoe, & Mammoth. According to the map below, a huge swath of the Sierras, from Truckee to Mammoth, is forecast to see 12-24″ of snow (PINK) by Tuesday…
- Extended the Winter Weather Advisory that was issued from Sunday at 4pm to Monday at 4pm to a Winter Weather Advisory that will last from 4pm Sunday to 7am Tuesday adding 15 hours to the advisory
- Expanded the Winter Weather Advisory they issued yesterday at noon to include the entire Lake Tahoe basin and more
There has been a shift in expected snow accumulations for the system impacting the Sierra and Western Nevada tonight through Tuesday morning. With models projecting a wetter and slower system, it was necessary to RAISE snow totals across the region.
This image [image above] shows the expected accumulations. As a result of the higher totals, Winter Weather Advisories have been issued for the Surprise Valley and Northern Washoe County (Tonight through Monday morning), the Sierra from the Tahoe Basin south through Mono County and Sierra Front from Reno to Douglas County (Monday night through Tuesday morning).” – NOAA Reno, NV
UPDATED WINTER WEATHER ADVISORY for CALIFORNIA:
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 147 PM PST SUN NOV 8 2015 ...AREAS OF ACCUMULATING SNOW PRODUCING TRAVEL IMPACTS TONIGHT AND AGAIN FOR MONDAY NIGHT... .A VERY COLD EARLY SEASON WINTER STORM WILL MOVE INTO NORTHERN CALIFORNIA THIS EVENING THEN SPREAD EAST AND SOUTH THROUGH MONDAY. THIS STORM WILL PRODUCE PERIODS OF LIGHT TO MODERATE SNOW IN NORTHEAST CALIFORNIA AND THE LAKE TAHOE AREA TONIGHT...THEN A COLD FRONT ASSOCIATED WITH THE STORM WITH PUSH EAST AND SOUTH ACROSS WESTERN NEVADA AND MONO COUNTY EARLY MONDAY. A BRIEF PERIOD OF SNOW SHOWERS IS POSSIBLE WITH THE FRONT MONDAY MORNING....WHICH COULD AFFECT THE MORNING COMMUTE EVEN IN THE LOWEST VALLEYS. A SECONDARY AREA OF LOW PRESSURE WILL DROP SOUTH INTO THE SIERRA AND WESTERN NEVADA MONDAY NIGHT INTO TUESDAY MORNING. THIS LOW WILL PRODUCE MORE WIDESPREAD AND LONGER LIVED SNOW SHOWERS WITH GREATER ACCUMULATIONS. THE MONDAY EVENING COMMUTE AND TUESDAY MORNING COMMUTE SHOULD BOTH BE AFFECTED BY THIS SECOND PART OF THE WINTER STORM. INCLUDING THE CITIES OF...BRIDGEPORT...COLEVILLE...LEE VINING... MAMMOTH LAKES ...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM MONDAY TO 10 AM PST TUESDAY... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A WINTER WEATHER ADVISORY...WHICH IS IN EFFECT FROM 6 PM MONDAY TO 10 AM PST TUESDAY. * TIMING: LIGHT TO MODERATE SNOW SHOWERS LATE MONDAY AFTERNOON WILL TRANSITION TO MODERATE TO HEAVY SNOW AFTER 6 PM WITH THE HEAVIEST SNOW BETWEEN 9 PM MONDAY AND 6 AM TUESDAY. * SNOW ACCUMULATIONS: 4 TO 8 INCHES BELOW 7000 FEET WITH THE HIGHEST ACCUMULATIONS ALONG AND WEST OF HIGHWAY 395. ABOVE 7000 FEET ACCUMULATIONS WITH REACH 6 TO 12 INCHES WITH THE HIGHEST TOTALS WEST OF HIGHWAY 395. LOCALLY HIGHER AMOUNTS ARE POSSIBLE ABOVE 8000 FEET. * IMPACTS: TRAVEL IS LIKELY TO BE IMPACTED BY ICE AND SNOW COVERED ROADS STARTING EARLY MONDAY EVENING AND LASTING THROUGH TUESDAY MORNING. CHAIN CONTROLS ARE POSSIBLE MONDAY EVENING INTO TUESDAY.