093  
FXUS66 KEKA 232245  
AFDEKA  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE EUREKA CA  
345 PM PDT SAT JUL 23 2016  
   
SYNOPSIS
 
STRONG HIGH PRESSURE WILL BRING A SIGNIFICANT WARMING  
TREND INTO THE COMING WEEK WITH TEMPERATURES APPROACHING THE  
TRIPLE DIGITS ACROSS THE INTERIOR. COASTAL AREAS WILL CONTINUE TO  
SEE A MIX OF CLOUDS AND SUN AS THE MARINE LAYER FLUCTUATES IN  
DEPTH.  
 

 
   
DISCUSSION
 
A PATCH OF LOW CLOUDS HELD FIRM ALONG THE IMMEDIATE  
REDWOOD COAST INTO EARLY AFTERNOON. THIS WAS AIDED BY A FLOW  
REVERSAL JUST OFFSHORE. WIND HAVE SINCE BECOME MORE UNIFORMLY N  
ALONG THE COAST, AND THE REMAINING CLOUDS HAVE ALL BUT DISSIPATED.  
TEMPERATURE ACROSS THE INTERIOR HAVE SOARED INTO THE 90S IN MANY  
LOCATIONS WITH A FEW HIGH VALLEYS OVER THE CENTURY MARK.  
TEMPERATURES ALONG THE PACIFIC COAST ARE RUNNING IN THE MID 60S.  
 
HIGH PRESSURE ALOFT WILL GRADUALLY BUILD OVER THE DESERT SW OVER  
THE NEXT FEW DAYS, WITH HIGH TEMPERATURES AT MANY INTERIOR  
LOCATIONS EXCEEDING 100 DEGREES. A FEW HIGH VALLEY SPOTS MAY SEE  
READINGS REACH 110 BY MID TO LATE IN THE COMING WEEK WITH 500 MB  
HEIGHTS BUILDING TO NEAR 597 DAM AS CLOSE AS THE NV/UT BORDER.  
 
RAIN CHANCES APPEAR SCANT OVER THE NEXT WEEK. HAVE LEFT IN SOME  
SILENT POPS OVER PORTIONS OF THE INTERIOR FOR FRIDAY AND SATURDAY  
AFTERNOONS. HOWEVER, MODELS APPEAR TO BE KEEPING MOST OF THE  
MONSOONAL MOISTURE BOTTLED UP WELL SOUTH OF THE AREA, AND GFS  
INSTABILITY PARAMETERS LOOK MEAGER. /SEC  
 

 
   
AVIATION
 
THE AFTERNOON NORTHWEST GUSTY WINDS ALONG THE COAST WILL  
SUBSIDE NEAR SUNSET WITH THE WINDS BECOMING LIGHT WESTERLY AND THEN  
BECOMING SOUTHERLY NEAR MIDNIGHT. THE COASTAL STRATUS AND FOG WILL  
MOVE OVER THE COASTAL AIRFIELDS SOON AFTER MIDNIGHT. IFR TO LIFR  
CONDITIONS EXPECTED BY 1100Z. THE AIRFIELDS ARE EXPECTED RETURN TO  
VFR CONDITIONS AROUND NOON SUNDAY. INTERIOR AIRFIELDS WILL CONTINUE  
TO BE VFR OVERNIGHT AS THE LOWER LEVELS OF THE ATMOSPHERE REMAIN  
WARM AND DRY.  
 

 
   
MARINE
 
A TIGHT PRESSURE GRADIENT RESULTING FROM THE INTERACTION  
BETWEEN THE EASTERN PACIFIC HIGH PRESSURE SYSTEM AND THE THERMAL  
TROUGH OVER INTERIOR CALIFORNIA IS GENERATING GALE FORCE WINDS  
OVER THE OUTER WATERS AND STRONG BREEZE TO NEAR GALE WINDS IN THE  
INNER WATERS. THESE NORTHWEST WINDS ARE FORECAST TO GENERATE STEEP  
WAVES ACROSS THE OUTER AND INNER WATERS. THUS A GALE WARNING IS  
IN EFFECT THROUGH TUESDAY FOR THE OUTER WATERS. FOR THE INNER  
WATERS A SMALL CRAFT ADVISORY IS IN EFFECT FOR WINDS AND  
HAZARDOUS SEAS TONIGHT AND SUNDAY AND THEN FOR HAZARDOUS SEAS  
THROUGH THE MIDDLE OF NEXT WEEK. THE SEA STATE ACROSS THE OUTER  
WATERS WILL RANGE FROM 12 TO 14 FEET AND 8 TO 10 FEET ACROSS THE  
INNER WATERS.  
 

 
   
EKA WATCHES/WARNINGS/ADVISORIES
 
 
CA...NONE.  
NORTHWEST CALIFORNIA COASTAL WATERS...  
SMALL CRAFT ADVISORY UNTIL 2 PM WEDNESDAY FOR PZZ450.  
GALE WARNING UNTIL 3 AM WEDNESDAY FOR PZZ470-475.  
SMALL CRAFT ADVISORY UNTIL 2 PM WEDNESDAY FOR PZZ455.  
 

 
 
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