Tuesday, March 19, 2013

90% Chance of rain tonight

  • 3-19-13
  • Today Partly sunny, with a high near 67. Light and variable wind becoming west southwest around 6 mph in the afternoon.
  • Tonight Rain, mainly after 11pm. Low around 44. Light and variable wind becoming northwest 5 to 9 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
 
...COOLER AND WETTER WEATHER EXPECTED LATER TODAY AND WEDNESDAY...

IMPACTS:

* SNOW WITH GUSTY WINDS COULD CAUSE POSSIBLE TRAVEL DELAYS AND
  CHAINS REQUIREMENTS IN THE HIGHER ELEVATIONS OF THE SIERRA NEVADA.

* SLICK ROADWAYS COULD LEAD TO AN INCREASE IN TRAFFIC ACCIDENTS.

ABOVE NORMAL TEMPERATURES OF THE PAST WEEK WILL BE REPLACED BY
COOLER WEATHER ALONG WITH RAIN AND HIGH-ELEVATION SNOW LATER TODAY
AND WEDNESDAY. CHANCES OF PRECIPITATION WILL INCREASE BY TONIGHT AND
PEAK EARLY WEDNESDAY. THE RAIN AND SNOW WILL TAPER TO SHOWERS BY
WEDNESDAY AFTERNOON AND MAY LINGER INTO EARLY THURSDAY.

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 AROUND THE PASS LEVELS.
MOTORISTS TRAVELING INTO THE NORTHERN SIERRA NEVADA SHOULD BE
PREPARED FOR POSSIBLE TRAVEL DELAYS AND CARRY CHAINS. SNOW
ACCUMULATIONS OF 3 TO 6 INCHES WILL BE POSSIBLE AT PASS LEVELS DOWN
TO AROUND 6500 FEET WITH MINOR ACCUMULATIONS POSSIBLE BELOW THAT
LEVEL. LOCALLY HIGHER AMOUNTS ARE POSSIBLE OVER HIGHER PEAKS.

RAINFALL AMOUNTS WITHIN THE VALLEY WILL GENERALLY RANGE FROM A TENTH
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 MAY BECOME SLICK SO MOTORISTS SHOULD INCREASE
FOLLOWING DISTANCES.