SPECIAL WEATHER STATEMENT
Issue Date: 848 PM PST SAT DEC 19 2009
Expiration: 400 AM PST SUN DEC 20 2009
...FREEZING FOG IN VALLEYS TONIGHT AND SUNDAY...
...WINTER WEATHER RETURNS MONDAY THROUGH TUESDAY...
THERE WILL BE ONE MORE NIGHT OF FREEZING FOG TONIGHT THROUGH SNOW
COVERED VALLEYS. THE BEST COVERAGE OF FOG WITH VISIBILITIES BELOW
ONE QUARTER MILE WILL BE NEAR:
* I-80 IN THE VICINITY OF LOVELOCK AND FERNLEY...
* HIGHWAY 395 FROM DOYLE TO SUSANVILLE...
* MONO LAKE AND LEE VINING...
* HIGHWAYS 95 AND 50 AROUND THE FALLON AND WALKER LAKE AREAS...
MOTORISTS SHOULD PREPARE FOR RAPIDLY CHANGING VISIBILITIES AND WATCH
FOR SLICK SPOTS AS A RESULT OF DENSE FOG. MOST OF THE FOG IS
EXPECTED TO DIMINISH DURING THE AFTERNOON SUNDAY.
AIR QUALITY WILL IMPROVE THROUGH VALLEYS SUNDAY INTO MONDAY AS
WINDS PICK UP AHEAD OF AN APPROACHING SYSTEM AND MIX OUT THE
INVERSION THAT HAS BEEN IN PLACE THE PAST 4 DAYS.
THE FIRST WINTER WEATHER SYSTEM WILL SPREAD PRECIPITATION ACROSS THE
NORTHERN SIERRA FROM PLACER COUNTY NORTHWARD THROUGH LASSEN COUNTY
LATE SUNDAY NIGHT INTO MONDAY MORNING WITH SNOW LEVELS AROUND 6000
FEET. A REINFORCING SYSTEM WILL BRING COOLER TEMPERATURES AND MORE
MOISTURE WITH IT MONDAY NIGHT WITH SNOW EXPECTED THROUGHOUT THE
SIERRA. STORM SNOW TOTALS WILL BE 3 TO 6 INCHES AT LAKE LEVEL WITH
UP TO A FOOT ABOVE 7000 FEET. GUSTS ON THE SIERRA RIDGES MAY
APPROACH 75 MPH. WINTER WEATHER ADVISORIES ARE LIKELY DURING THIS
PERIOD.
SNOW LEVELS WILL DROP TO THE VALLEY FLOORS IN ALL LOCATIONS BY
DAYBREAK TUESDAY MORNING...THOUGH NOT MUCH MOISTURE IS EXPECTED TO
SPILLOVER EAST OF THE SIERRA. UP TO AN INCH OF SNOW IS POSSIBLE IN
WESTERN NEVADA VALLEYS ON TUESDAY.
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