727  
FLUS46 KMTR 070326  
HWOMTR  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SAN FRANCISCO CA  
726 PM PST SAT JAN 6 2018  
 
CAZ006-505>513-516>518-528>530-071400-  
SAN FRANCISCO-  
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-  
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-  
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-  
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND THE DIABLO RANGE-  
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY INCLUDING SAN JOSE-  
SOUTHERN SALINAS VALLEY/ARROYO SECO AND LAKE SAN ANTONIO-  
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-  
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY  
INCLUDING PINNACLES NATIONAL PARK-  
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-  
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-  
726 PM PST SAT JAN 6 2018  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SAN FRANCISCO BAY AREA  
AND MONTEREY BAY AREA.  
   
DAY ONE
 
SATURDAY NIGHT  
 
PARTLY CLOUDY SKIES AND MILD TEMPERATURES ARE FORECAST FOR  
SATURDAY NIGHT. PATCHY FOG WILL LIKELY DEVELOP LATE IN THE NORTH  
BAY VALLEYS, EAST BAY VALLEYS, AND AROUND SAN FRANCISCO BAY.  
PATCHY DENSE FOG IS POSSIBLE IN THE NORTH BAY VALLEYS AND NEAR THE  
DELTA.  
   
DAYS TWO THROUGH SEVEN
 
SUNDAY THROUGH FRIDAY  
 
PATCHY FOG WILL CONTINUE INTO SUNDAY MORNING.  
 
A WET AND WINDY STORM SYSTEM IS EXPECTED TO IMPACT THE REGION  
FROM LATE SUNDAY NIGHT THROUGH TUESDAY.  
 
* PRECIPITATION ONSET: RAIN IS FORECAST TO SPREAD ACROSS  
THE REGION LATE SUNDAY NIGHT AND MONDAY MORNING.  
 
* PRECIPITATION DURATION: PERIODS OF RAIN WILL THEN CONTINUE  
THROUGH MONDAY AFTERNOON AND MONDAY NIGHT. SCATTERED SHOWERS  
ARE FORECAST FOR TUESDAY AND POSSIBLY INTO TUESDAY NIGHT.  
 
* PRECIPITATION INTENSITY: LOCALLY HEAVY RAIN IS POSSIBLE FROM  
MIDDAY MONDAY THROUGH MONDAY NIGHT. HEAVY RAIN OVER THE NORTH  
BAY BURN SCARS MAY RESULT IN DEBRIS FLOWS.  
 
* THUNDERSTORM POTENTIAL: THERE IS A SLIGHT CHANCE OF  
THUNDERSTORMS ACROSS THE SOUTHERN PORTION OF THE FORECAST AREA  
ON TUESDAY AFTERNOON AND EVENING.  
 
* FORECAST RAINFALL AMOUNTS (LATE SUNDAY NIGHT THROUGH TUESDAY  
EVENING): COASTAL MOUNTAINS: 3-5 INCHES, INLAND MOUNTAINS:  
2-3", COASTAL PLAINS AND MOST VALLEYS: 1-2.5", RAIN-SHELTERED  
VALLEYS: 0.5-1.0"  
 
* WINDS: STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP ON MONDAY  
MORNING AND PERSIST THROUGH MONDAY NIGHT. WIND GUSTS OF BETWEEN  
40 AND 55 MPH ARE POSSIBLE, ESPECIALLY NEAR THE COAST AND AT  
HIGHER ELEVATIONS. WIND ADVISORIES MAY BE ISSUED.  
 
 

 
 
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