642  
WWUS76 KMTR 190044  
NPWMTR  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
444 PM PST SUN FEB 18 2018  
 
...WIDESPREAD FREEZING TEMPERATURES EXPECTED ACROSS INLAND AREAS  
LATE MONDAY NIGHT AND TUESDAY MORNING...  
...WIDESPREAD FROST LIKELY IN MANY COASTAL AREAS LATE MONDAY NIGHT  
AND TUESDAY MORNING...  
 
.A STRONG COLD MOVED THROUGH THE REGION ON SUNDAY MORNING AND IS  
PRODUCING MUCH COOLER AND BLUSTERY CONDITIONS. THERE WILL BE  
ENOUGH WIND ON SUNDAY NIGHT TO KEEP TEMPERATURES FROM FALLING  
BELOW FREEZING IN MOST AREAS. HOWEVER, WINDS ARE EXPECTED TO  
DIMINISH BY MONDAY NIGHT AND THIS WILL SET THE STAGE FOR  
WIDESPREAD FREEZING TEMPERATURES ACROSS INLAND AREAS FROM LATE  
MONDAY NIGHT INTO TUESDAY MORNING. IN ADDITION, FROST IS LIKELY IN  
COASTAL AREAS AS TEMPERATURES DROP TO NEAR FREEZING.  
 
CAZ506-507-510>513-516>518-528-191400-  
/O.CON.KMTR.FZ.W.0001.180220T0800Z-180220T1700Z/  
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-  
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-  
INCLUDING THE CITIES OF SANTA ROSA, SOUTH SANTA ROSA, NAPA,  
SAN RAFAEL, PETALUMA, NOVATO, ROHNERT PARK, ANGWIN,  
LAGUNITAS-FOREST KNOLLS, WOODACRE, CONCORD, ANTIOCH, LIVERMORE,  
WALNUT CREEK, PLEASANTON, PITTSBURG, SAN RAMON, BLACKHAWK,  
SCOTTS VALLEY, BOULDER CREEK, DAY VALLEY, SAN JOSE, GREENFIELD,  
KING CITY, AND SALINAS  
444 PM PST SUN FEB 18 2018  
 
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO  
9 AM PST TUESDAY...  
 
A FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO  
9 AM PST TUESDAY.  
 
* LOCATION...ALL INLAND AREAS OF THE SAN FRANCISCO BAY AREA AND  
MONTEREY BAY AREA, INCLUDING THE VALLEYS AND HILLS.  
 
* TEMPERATURES...WIDESPREAD OVERNIGHT LOWS FROM THE MID 20S TO  
LOWER 30S.  
 
* TIMING...SEVERAL HOURS OF SUBFREEZING TEMPERATURES POSSIBLE  
FROM LATE MONDAY NIGHT THROUGH MID MORNING TUESDAY.  
 
* IMPACTS...FREEZING TEMPERATURES CAN DAMAGE OR KILL PLANTS THAT  
ARE SENSITIVE TO COLD. PLEASE CHECK ON THE ELDERLY AND MAKE  
SURE ANIMALS HAVE A WARM SHELTER.  
 
A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR  
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER  
SENSITIVE VEGETATION.  
 

 
 

 
 
CAZ505-508-509-529-530-191400-  
/O.NEW.KMTR.FR.Y.0001.180220T0800Z-180220T1700Z/  
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-  
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-  
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-  
INCLUDING THE CITIES OF TAMALPAIS-HOMESTEAD, SAUSALITO, OAKLAND,  
FREMONT, HAYWARD, DALY CITY, BERKELEY, PACIFICA, SANTA CRUZ,  
WATSONVILLE, LIVE OAK, SEASIDE, MONTEREY, AND MARINA  
444 PM PST SUN FEB 18 2018  
 
...FROST ADVISORY IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO 9 AM  
PST TUESDAY...  
 
THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A  
FROST ADVISORY, WHICH IS IN EFFECT FROM MIDNIGHT MONDAY NIGHT TO 9  
AM PST TUESDAY.  
 
* LOCATION...ALL COASTAL AND BAYSIDE AREAS OF THE SAN FRANCISCO  
BAY AREA AND MONTEREY BAY AREA, EXCEPT THE CITY OF SAN  
FRANCISCO.  
 
* TEMPERATURES...WIDESPREAD OVERNIGHT LOWS FROM 30 TO 35.  
 
* TIMING...SEVERAL HOURS OF TEMPERATURES NEAR FREEZING FROM LATE  
MONDAY NIGHT THROUGH MID MORNING TUESDAY.  
 
* IMPACTS...FROST CAN DAMAGE OUTDOOR VEGETATION THAT IS VERY  
SENSITIVE TO COLD. PLEASE CHECK ON THE ELDERLY AND MAKE SURE  
ANIMALS HAVE A WARM SHELTER.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR  
PLANTS MAY BE DAMAGED IF LEFT UNCOVERED.  
 

 
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page