Frost Advisory 9, NWS Eureka, CA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE EUREKA CA
308 AM PDT THU APR 15 2010

.SYNOPSIS...AN UPPER LEVEL WILL MOVE INTO THE REGION LATE FRIDAY AND
SLOWLY MOVE ACROSS THE REGION BEFORE MOVING INLAND THE MIDDLE OF
NEXT WEEK. THIS WILL MAINTAIN A CHANCE OF PRECIPITATION THROUGH THE
EARLY NEXT WEEK.
&&

.DISCUSSION...WV IMAGERY SHOWS COMPLEX TROUGH NEAR 135W WITH TWO
DISTINCT CIRCULATION CENTERS CONTINUING TO SPIN OFFSHORE. MODELS IN
GOOD AGREEMENT ON RETROGRADING THIS LOW FURTHER W TODAY WITH DRY WX
EXPECTED ACROSS CWA TODAY. A MINOR SHORT WAVE EJECTS OUT OF THE BASE
OF THE TROUGH OVERNIGHT BEFORE MOVING ACROSS NW CA EARLY FRI. GIVEN
THE TIMING OF THIS DISTURBANCE AND THE LACK OF FOCUS FOR CONVECTIVE
INITIATION EXPECT MOSTLY DRY WX ACROSS CWA EXCEPT FOR AN ISOLD
SHOWER OR TWO OVER HIGHER TERRAIN IN THE AFTERNOON. MINOR IMPULSES
IN THE SW FLOW ALOFT WILL MAINTAIN THE THREAT FOR...MAINLY DIURNALLY
DRIVEN...SHOWERS MOSTLY OVER THE HIGHER TERRAIN AND ORCA BORDER.
POPS INCREASE SUBSTANTIALLY EARLY NEXT WEEK AS THE LONG WAVE TROUGH
OVER THE NE PAC SLOWLY MOVES TOWARDS THE COAST. PRECIP CHANCES WILL
PERSIST THROUGH MID WEEK BEFORE THE TROUGH AXIS MOVES FAR ENOUGH E.
MODELS REMAIN IN FAIR AGREEMENT ON A WARMER AND DRIER PATTERN FOR
THE LATTER HALF OF NEXT WEEK AS AN UPPER LOW CUTS OFF OVER THE SW
U.S. AND AN UPPER LEVEL RIDGE BUILDS OVER THE PAC NW. BC
&&

.AVIATION...SAT PICS SHOWED MVFR LAYERS AND A FEW PATCHES OF FOG
EARLY THIS MORNING. CLOUDS SHOULD DECREASE THIS AFTN. NORTH WIND
WILL LEAD TO NEW CLOUD GROWTH AT THE COAST THIS AFTN AND EVENING.
&&

.MARINE...FORECAST REMAINS MILD AND UNEVENTFUL FOR THE NEXT SEVERAL
DAYS WITH RELATIVELY LIGHT WINDS AND LOW SEAS. SEAS SHOULD RAMP UP
TUE INTO WED NEXT WEEK AS ROBUST NORTHERLY WINDS DEVELOP.
&&

.EKA WATCHES/WARNINGS/ADVISORIES...NONE.
&&

VISIT US AT HTTP://WWW.WEATHER.GOV/EUREKA

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE EUREKA CA
525 AM PDT WED APR 14 2010

CAZ001>004-076-151230-
REDWOOD COAST-MENDOCINO COAST-NORTH COAST INTERIOR-
UPPER TRINITY RIVER-MENDOCINO INTERIOR-
525 AM PDT WED APR 14 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.