Since July 1, we have had 11.46 " of rain. Average seasonal rainfall for February 4th is 18.42". We are now at 62% of our normal rainfall for this date.

CAZ506-050500- NORTH BAY INTERIOR VALLEYS- 200 AM PST SAT FEB 4 2012

TODAY: PARTLY CLOUDY. HIGHS IN THE LOWER TO MID 60S. NORTHEAST WINDS 5 TO 10 MPH...BECOMING SOUTHEAST IN THE AFTERNOON.

TONIGHT: PARTLY CLOUDY. LOWS IN THE MID 30S TO LOWER 40S. NORTHEAST WINDS 5 TO 10 MPH.

SUNDAY: PARTLY CLOUDY. HIGHS IN THE MID 60S. EAST WINDS 5 TO 10 MPH.

SUNDAY NIGHT: PARTLY CLOUDY. LOWS NEAR 40. NORTHEAST WINDS 5 TO 10 MPH.

MONDAY: MOSTLY CLOUDY. HIGHS NEAR 60. EAST WINDS 5 TO 10 MPH.

MONDAY NIGHT: RAIN LIKELY. LOWS IN THE LOWER TO MID 40S.

TUESDAY: RAIN LIKELY. HIGHS IN THE 50S.

TUESDAY NIGHT: MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN. LOWS IN THE MID 30S TO LOWER 40S.

WEDNESDAY: PARTLY CLOUDY. HIGHS IN THE UPPER 50S TO MID 60S.

WEDNESDAY NIGHT THROUGH THURSDAY NIGHT: MOSTLY CLEAR. LOWS IN THE MID 30S TO LOWER 40S. HIGHS IN THE MID 60S.

FRIDAY: PARTLY CLOUDY. HIGHS IN THE MID 60S. && TEMPERATURE / PRECIPITATION SANTA ROSA 66 35 67 / 0 0 0 SAN RAFAEL 63 42 64 / 0 0 0 NAPA 63 37 64 / 0 0 0

.DISCUSSION...AS OF 2:55 AM PST SATURDAY...A MIXTURE OF HIGH CLOUDS AND PATCHY FOG IS OCCURRING ACROSS THE DISTRICT AT THIS TIME. TEMPERATURES ARE COOL...IN THE UPPER 30S TO MID 40S. MOST AREAS. HIGH PRESSURE ALOFT WILL PROVIDE A MILD...DRY WEEKEND.
HIGHS TODAY AND SUNDAY ARE EXPECTED TO RANGE FROM THE 60S TO LOWER 70S WITH LIGHT OFFSHORE WINDS.
MONDAY WILL SEE INCREASING CLOUDS AS AN UPPER LEVEL TROUGH APPROACHES THE WEST COAST. THIS SYSTEM IS FORECAST TO SPLIT AS IT HITS THE UPPER RIDGE WITH THE NORTHERN BRANCH AFFECTING THE PACIFIC NORTHWEST AND THE SOUTHERN PORTION BREAKING OFF INTO A CUT-OFF LOW PROGGED TO VEER SOUTHWARD ALONG THE CALIFORNIA COAST.
THE 00Z MODEL GUIDANCE DOES BRING THE UPPER LOW FARTHER EAST BEFORE CUTTING IT SOUTHWARD...THUS BRINGING BETTER RAIN CHANCES TO OUR DISTRICT THAN SOME EARLIER MODEL RUNS SUGGESTED. EVEN SO...THERE IS STILL SOME VARIABILITY...THUS CONFIDENCE REMAINS ON THE LOWER SIDE. HAVE LEFT POPS MOSTLY UNCHANGED FROM THE EARLIER FORECAST PACKAGE WITH RAIN BEGINNING MONDAY NIGHT AND CONTINUING THROUGH TUESDAY BEFORE TAPERING OFF TUESDAY NIGHT.
AFTER THIS SYSTEM MOVES EAST...HIGH PRESSURE IS FORECAST TO REBUILD OVER THE WEST FOR A RETURN TO DRY AND MILD WEATHER FOR THE REMAINDER OF THE FORECAST PERIOD.
&& .AVIATION...AS OF 3:22 AM PST SATURDAY...CURRENTLY THE IR SATELLITE IMAGE IS SHOWING SOME HIGH CLOUDS PASSING OVER THE FORECAST AREA THIS MORNING. SURFACE OBS IN THE EAST BAY AREA ARE REPORTING LIGHT FOG WHICH MAY BECOME MORE WIDE SPREAD AROUND SUNRISE. THE FOG SHOULD NOT IMPACT KSFO OR THE APPROACH AND WILL BURN OFF QUICKLY AFTER SUNRISE.
VICINITY OF KSFO...VFR WITH GENERALLY LIGHT WINDS.
KSFO BRIDGE APPROACH...VFR.
KSJC...CURRENTLY THE DEW POINT DEPRESSION IS 5 DEGREES F BUT OVERNIGHT LOW TEMP SHOULD COME CLOSER TO THE DEW POINT BY SUNRISE.
THEREFORE REDUCED VIS TO 1 SM WILL BE POSSIBLE AROUND SUNRISE. IF FOG DOES OCCUR IT WILL BE SHORT LIVED BURNING OFF BY 1600Z.
MONTEREY BAY AREA TERMINALS...VFR WITH GENERALLY LIGHT WINDS.
STRONGER EAST SOUTHEASTERLY WINDS REACHING 15 KT WILL BE POSSIBLE IN THE SALINAS VALLEY.
&& .MTR WATCHES/WARNINGS/ADVISORIES...
.TDAY...SCA...ROUGH BAR ADVISORY FOR SF BAR &&