324  
WWUS76 KMTR 222051  
NPWMTR  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
151 PM PDT FRI JUN 22 2018  
 
CAZ506>508-510>513-516>518-231400-  
/O.CON.KMTR.HT.Y.0001.180623T1800Z-180624T0300Z/  
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-  
SAN FRANCISCO BAY SHORELINE-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-  
INCLUDING THE CITIES OF SANTA ROSA, SOUTH SANTA ROSA, NAPA,  
SAN RAFAEL, PETALUMA, NOVATO, ROHNERT PARK, ANGWIN,  
LAGUNITAS-FOREST KNOLLS, WOODACRE, OAKLAND, FREMONT, HAYWARD,  
DALY CITY, BERKELEY, CONCORD, ANTIOCH, LIVERMORE, WALNUT CREEK,  
PLEASANTON, PITTSBURG, SAN RAMON, BLACKHAWK, SCOTTS VALLEY,  
BOULDER CREEK, DAY VALLEY, SAN JOSE, GREENFIELD, AND KING CITY  
151 PM PDT FRI JUN 22 2018  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM PDT  
SATURDAY...  
 
* TIMING...11 AM TO 8 PM SATURDAY.  
 
* LOCATIONS... MOST OF THE INLAND GREATER SAN FRANCISCO BAY AREA  
(EXCLUDING COASTAL AREAS), INLAND MONTEREY COUNTY, AND INLAND  
SAN BENITO COUNTY. FOR THE SAN FRANCISCO BAY SHORELINE...MAIN  
HEAT RISK IS PRIMARILY FROM REDWOOD CITY TO CUPERTINO.  
 
* TEMPERATURES...WIDESPREAD TEMPERATURES IN THE MID 90S  
TO LOW 100S IN THE IMPACTED AREAS ARE EXPECTED. THE HOTTEST  
INLAND LOCATIONS SUCH AS PINNACLES NATIONAL PARK AND THE EXTREME  
INLAND PORTIONS OF NAPA, SONOMA, AND POSSIBLY CONTRA COSTA  
COUNTIES MAY SURPASS 105 DEGREES. THE CITIES OF SAN FRANCISCO  
AND OAKLAND ARE EXCLUDED FROM THIS HEAT ADVISORY, BUT WILL BE  
VERY WARM ON SATURDAY WITH HIGHS EXPECTED IN THE MID TO UPPER  
80S. SAN JOSE, WHICH IS INCLUDED IN THE ADVISORY, IS FORECAST  
REACH THE MID TO UPPER 90S. FOR THE SAN FRANCISCO BAY SHORELINE,  
THE MAIN HEAT RISKS ARE GENERALLY FROM REDWOOD CITY TO  
CUPERTINO WHERE TRIPLE DIGIT TEMPERATURES ARE FORECAST, WHILE  
OTHER AREAS OF THE SHORELINE WILL BE NOTICEABLY COOLER.  
 
* IMPACTS...MODERATE TO HIGH RISK OF HEAT RELATED ILLNESS,  
ESPECIALLY FOR VULNERABLE POPULATIONS DURING THE DAY SATURDAY.  
INCREASED NUMBER OF VISITORS TO COASTAL COMMUNITIES AND BEACHES  
TO ESCAPE HEAT, POTENTIALLY RESULTING IN INCREASED WATER  
RESCUES. EXACERBATION OF CRITICAL FIRE WEATHER CONDITIONS,  
ESPECIALLY IN THE NORTH AND EAST BAY HILLS AND MOUNTAINS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS  
EXPECTED. HOT TEMPERATURES WILL CREATE A SITUATION IN WHICH HEAT  
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-  
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON  
RELATIVES AND NEIGHBORS.  
 

 
 

 
 
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