From the National Weather Service:
ANOTHER STORM WILL TAKE AIM AT NORTHERN CALIFORNIA...AND COULD
BRING SNOW TO THE FOOTHILLS WEDNESDAY
A STRONG POLAR JET STREAM WILL DRIVE ANOTHER LOW PRESSURE SYSTEM
INTO NORTHERN CALIFORNIA TOMORROW NIGHT AND WEDNESDAY. SCATTERED
SHOWERS WILL RETURN LATER TONIGHT OVER THE NORTHERN MOUNTAINS AND
RAIN WILL BECOME STEADY IN THE MORNING OVER THE NORTHERN
SACRAMENTO VALLEY AND SURROUNDING FOOTHILLS...AND THEN SPREAD
SOUTH AND EAST INTO SOUTHERN SACRAMENTO AND NORTHERN SAN JOAQUIN
VALLEY AND MOTHERLODE IN THE AFTERNOON. THE MAIN PART OF THE STORM
WILL MOVE THROUGH THE INTERIOR TUESDAY EVENING INTO EARLY
WEDNESDAY MORNING WHEN MODERATE TO LOCALLY HEAVY RAINFALL WILL
LIKELY OCCUR WITH GUSTY WINDS AS THE FRONT MOVES THROUGH.
PRECIPITATION WILL TURN MORE SHOWERY BEHIND THE COLD FRONT
WEDNESDAY...AS MUCH COLDER AIR WILL SPILLS INTO NORTHERN
CALIFORNIA. SNOW LEVELS WILL DROP TO 1000 FEET IN SHASTA
COUNTY...TO 2500 FEET IN THE MOTHERLODE AND SOUTHERN LAKE COUNTY
HILLS DURING THE DAY ON WEDNESDAY.
RAINFALL TOTALS FROM THIS STORM WILL RANGE FROM ONE HALF INCH TO
AN INCH IN THE VALLEYS. ONE TO TWO INCHES OF RAIN WITH LOCAL
HIGHER AMOUNTS POSSIBLE FOR THE NORTHERN FOOTHILLS. A COUPLE OF
INCHES OF SNOW MAY FALL OVER THE ELEVATIONS BETWEEN 2000 AND 3000
FEET OF SHASTA COUNTY AND LAKE COUNTY ON WEDNESDAY WITH LIGHT
AMOUNTS OF SNOW THE HIGHER ELEVATIONS OF THE MOTHERLODE. UNSTABLE
AIR COULD CAUSE SHOWERS WITH SMALL HAIL OR SLEET ON WEDNESDAY.
CLEARING SKIES AND COLDER TEMPERATURES ARE LIKELY WEDNESDAY NIGHT.
NORTH WINDS MAY PREVENT TEMPERATURES FROM FALLING BELOW FREEZING
IN MANY VALLEY AREAS...BUT IT WILL FEEL QUITE CHILLY. WIND CHILLS
TEMPERATURES IN THE TEENS AND 20S ARE POSSIBLE FOR FOOTHILL AND
CENTRAL VALLEY LOCATIONS. WIND SHELTER AREAS IN THE CENTRAL VALLEY
WILL LIKELY HAVE TEMPERATURES DIP INTO THE UPPER 20S TO LOWER 30S
WHILE IN THE FOOTHILLS WIND SHELTERED LOCATIONS WILL LIKELY DIP
INTO THE MID 20S. ICY ROADWAYS WEDNESDAY NIGHT AS TEMPERATURES
COOL MAY ALSO BECOME A PROBLEM...MAINLY FOR THE FOOTHILLS.
CONTINUE TO MONITOR THE LATEST NATIONAL WEATHER SERVICE FORECASTS
FOR UPDATES ON THIS DEVELOPING STORM.
And for those of you either living in or travelling to the mountains:
THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A WINTER
STORM WARNING ABOVE 4500 FEET FOR HEAVY SNOW AND/OR BLOWING SNOW
WHICH IS IN EFFECT FROM 2 PM TUESDAY TO 10 AM PST WEDNESDAY FOR
WESTERN PLUMAS COUNTY AND LASSEN PARK. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.
* TIMING: SCATTERED SNOW SHOWERS MAY BEGIN LATE TONIGHT WITH
STEADY SNOW EXPECTED BY TOMORROW AFTERNOON. PERIODS OF HEAVY
SNOW ARE LIKELY TOMORROW NIGHT INTO WEDNESDAY MORNING. SNOW
LEVELS... INITIALLY NEAR 5000 FEET IN LASSEN PARK... WILL FALL TO
NEAR 2500 FEET BY WEDNESDAY AFTERNOON. COLD AND ICY CONDITIONS
ARE LIKELY TO PERSIST INTO WEDNESDAY NIGHT.
* SNOWFALL: 1 TO 2 FEET OF NEW SNOW IS POSSIBLE ABOVE 7000
FEET...WITH 6 TO 12 INCHES ABOVE 4500 FEET BY WEDNESDAY
AFTERNOON. SEVERAL INCHES OF SNOW MAY FALL DOWN TO AROUND 3000
FEET ON WEDNESDAY.
* WINDS: SOUTHWEST WIND GUSTS TO 50 MPH ARE POSSIBLE ACROSS
HIGHER MOUNTAIN PASSES TOMORROW EVENING THROUGH WEDNESDAY
MORNING.
* MAIN IMPACTS: HAZARDOUS TRAVELING CONDITIONS. HAZARDOUS BACK
COUNTRY CONDITIONS AND AVALANCHE DANGER. VERY COLD WIND
CHILLS TOWARD THE END OF THE EVENT.
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