FXUS66 KSEW 291036
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
330 AM PDT TUE JUN 29 2004

.SYNOPSIS...MODERATE ONSHORE FLOW WILL CONTINUE FOR MUCH OF THIS 
WEEK WITH ORGANIZED WEATHER SYSTEMS STEERING CLEAR OF WESTERN 
WASHINGTON. AN UPPER LEVEL LOW PRESSURE TROUGH WILL SLOWLY DRIFT 
ACROSS THE REGION OVER THE HOLIDAY WEEKEND...BRINGING WITH IT SOME 
CLOUDS AND A CHANCE OF SHOWERS.

&&

.DISCUSSION...TODAY LOOKS AS THO IT WILL BE A BASIC REPEAT OF 
YESTERDAY.  THE MAIN DIFFERENCE IS A BIT OF HIGH CLOUDINESS DRIFTING 
ACROSS THE SOUTHERN HALF OF THE REGION LEFT OVER FROM THE 
THUNDERSTORMS THAT DEVELOPED OVER OREGON.  SOME LOW LEVEL MARINE 
CLOUDS HAVE DEVELOPED ALONG THE COAST...DOWN THE STRAIT AND OVER 
PORTIONS OF THE SOUTHWEST IN THE LIGHT ONSHORE GRADIENT. THESE 
SHOULD BURN BACK TO THE WATER DURING THE DAY. 

OVERNIGHT...THE MARINE CLOUDS ARE EXPECTED TO REDEVELOP AND MOVE A 
BIT FURTHER INLAND TONIGHT WITH SOME MORE HIGH CLOUDINESS EXPECTED 
OVER THE SOUTHERN HALF OF THE FORECAST AREA AS CONVECTION SHOULD 
DEVELOP OVER OREGON ONCE AGAIN. THIS TIME THE STORMS SHOULD DEVELOP 
A BIT CLOSER WITH SOMEWHAT DENSER CLOUDS OVER US.  NOT MUCH OF AN 
ISSUE THOUGH. WED...VERY SIMILAR TO LAST COUPLE OF DAYS.  

THU...EXPECTING THE MARINE CLOUDS TO BE MORE EXTENSIVE AS A 
PRE-FRONTAL RIDGE SHOULD INCREASE THE ONSHORE GRADIENT SOME OVER 
WHAT WE HAVE HAD LATELY. STILL EXPECT THAT THE CLOUDS WILL BURN OFF 
MOST INLAND AREAS...HOWEVER WILL BEGIN THE COOL DOWN THAT WILL 
CONTINUE INTO THE WEEKEND.  

OFFSHORE FRONT WHIPS ACROSS THE AREA FRIDAY AND MOST WON/T NOTICE AS 
EXPECTING A MAINLY DRY EVENT. SOME LIGHT RAIN AND DRIZZLE IS 
POSSIBLE ALONG THE COAST AND WESTERN SLOPES OF THE OLYMPICS. WILL 
HAVE MORE CLOUDS AROUND AND COOLER TEMPERATURES...CLOSE TO NORMAL. 

THE EXTENDED PERIOD /SATURDAY THROUGH TUESDAY/ IS BECOMING MORE 
INTERESTING AS THE MODELS ARE DEVELOPING A MORE CONSOLIDATED UPPER 
LOW AND DRIFTING IT ACROSS THE REGION THROUGH THE PERIOD. THIS WOULD 
ALLOW FOR SLIGHTLY UNSTABLE CONDITIONS WHICH SHOULD KEEP THE 
BOUNDARY LAYER CLOUDS BROKEN UP WITH A CHANCE OF SHOWERS...MAINLY 
AFTERNOON AND EVENING HOURS. THIS SETUP IS NOT A WASHOUT...JUST MORE 
CLOUDS AND COOLER TEMPS THAN WE HAVE BEEN USED TO LATELY WITH A 
CHANCE OF A SHOWERS. MAY EVEN HAVE MOTHER NATURE PROVIDE SOME LOCAL 
FIREWORKS ONE OR TWO OF THOSE DAYS. 

CERNIGLIA
&&

.SEW...SMALL CRAFT ADVISORY CENTRAL/ERN STRAIT OF JUAN DE FUCA.

.KATX...VCP32/CSR32.

&&

$$