565  
FXUS66 KEKA 291121  
AFDEKA  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE EUREKA CA  
421 AM PDT SUN MAR 29 2015  
   
SYNOPSIS
 
MOSTLY CLEAR SKIES AND DRY WEATHER IS EXPECTED  
TODAY. A WEAK FRONT WILL BRING A CHANCE OF RAIN TO AREAS NORTH OF  
CAPE MENDOCINO MONDAY NIGHT INTO TUESDAY FOLLOWED BY COOLER  
TEMPERATURES.  
 

 
   
DISCUSSION
 
A VERY WEAK UPPER DISTURBANCE IS PRESENTLY  
TRAVERSING THE AREA...BRINGING SOME HIGH CLOUDINESS. IN THE LOWER  
LEVELS...SOME STRATUS AND PATCHY FOG HAVE DEVELOPED ALONG THE  
REDWOOD COAST AND UP PORTIONS OF THE EEL RIVER VALLEY. EARLY  
MORNING TEMPERATURES ARE MOSTLY IN THE MID 40S TO LOWER  
50S...ALTHO TEMPERATURES HAVE DROPPED BELOW 40 DEGREES OVER  
CENTRAL TRINITY COUNTY. HIGH CLOUDS ARE EXPECTED TO THIN LATER  
THIS MORNING AS THE DISTURBANCE SHIFTS FARTHER E...BUT ANOTHER  
BATCH OF HIGH CLOUDS IS EXPECTED TO MOVE INTO THE AREA DURING THE  
AFTERNOON. LOW CLOUDS SHOULD PULL BACK TOWARD THE COAST THIS  
MORNING. BOTH THE NAM AND GFS ARE DEPICTING SOME WEAK INSTABILITY  
OVER THE YOLLA BOLLYS THIS AFTERNOON...BUT A STRONG LOW-LEVEL  
INVERSION SHOULD KEEP CONVECTION FROM DEVELOPING.  
 
THE NEXT RAIN MAKER IS STILL SLATED TO CLIP THE N 1/2 OF THE AREA  
MON NIGHT AND TUE. RAINFALL AMOUNTS WITH THIS SYSTEM STILL LOOK  
MEAGER...RANGING FROM NEAR 1/2 INCH IN THE DEL NORTE MOUNTAINS TO  
TRACE AMOUNTS JUST S OF CAPE MENDOCINO. SNOW LEVELS WILL BE QUITE  
HIGH DURING THE BULK OF THE PRECIP EVENT...ALTHO LEVELS WILL  
RAPIDLY FALL TUE AS PRECIP BECOMES MORE SHOWERY. AS A RESULT...  
SNOW AMOUNTS ARE EXPECTED TO BE MINIMAL. COOLER SURFACE  
TEMPERATURES WILL TRAIL THE FRONT...WITH AREAS OF FROST POSSIBLE  
DURING THE MIDDLE OF THE WEEK OVER THE INTERIOR. HAVE HELD OFF ON  
FROST MENTION FOR NOW DUE TO UNCERTAINTY REGARDING CLOUDS AND  
LINGERING PRECIP. HOWEVER...THE GROWING SEASON BEGINS ACROSS THE N  
COAST INTERIOR ZONE ON 4/1...AND THE SEASON HAS BEEN UNDERWAY FOR  
ABOUT A MONTH ACROSS THE MENDOCINO INTERIOR ZONE.  
 
TEMPERATURES WILL WARM A BIT LATE IN THE UPCOMING WORK WEEK...BUT  
THEN DROP OFF AGAIN BY NEXT WEEKEND AS A TROF DIGS OVER THE E  
PACIFIC. /SEC  
 

 
   
AVIATION
 
VFR CONDITIONS AND LIGHT WINDS TO CALM CONDITIONS WILL  
CONTINUE AT KCEC AND KUKI THROUGH THIS EVENING. VFR TO MVFR  
CONDITIONS AND LIGHT WINDS TO CALM CONDITIONS WILL CONTINUE AT KACV  
THROUGH THE EARLY MORNING. THE LOWER CONDITIONS ARE DUE TO LOWER  
CEILINGS. VFR CONDITIONS WILL PREVAIL AT KACV LATER THIS MORNING  
THROUGH THIS EVENING.  
 

 
   
MARINE
 
A HIGH PRESSURE RIDGE IN CONJUNCTION WITH AN INLAND  
THERMAL LOW PRESSURE TROUGH WILL MAINTAIN ELEVATED NORTHERLY WINDS  
AND SEAS ACROSS THE WATERS TODAY. SEAS WILL REMAIN ELEVATED THROUGH  
THE MIDDLE OF THIS WEEK. WINDS AND SEAS WILL BE HIGHER ACROSS THE  
SOUTHERN WATERS. THEREFORE SMALL CRAFT ADVISORIES WILL CONTINUE IN  
EFFECT ACROSS THE SOUTHERN WATERS THROUGH THIS EVENING.  
 

 
   
EKA WATCHES/WARNINGS/ADVISORIES
 
 
CA...NONE.  
NORTHWEST CALIFORNIA COASTAL WATERS...  
SMALL CRAFT ADVISORY TIL 10 PM THIS EVENING FOR PZZ455-475.  
 

 
 

 
 
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