Hazardous Seas Warning 19, NWS Medford, OR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
250 AM PDT FRI MAR 25 2011

.SHORT TERM...CLOSED 500MB LOW NEAR THE CENTRAL OREGON COAST WILL
WEAKEN AND MOVE INLAND TODAY. A COOL MOIST CYCLONIC CIRCULATION WILL
CONTINUE TO PRODUCE SHOWERS ACROSS THE REGION THIS MORNING...THEN
DECREASE TEMPORARILY THIS AFTERNOON. THE LATEST RADAR LOOP SHOWS
MOSTLY SCATTERED RAIN AND SNOW SHOWERS OVER NORTHWEST CALIFORNIA AND
SOUTHWEST OREGON. ISOLATED HEAVIER SHOWERS OVER THE ILLINOIS VALLEY
WILL BRIEFLY LOWER THE SNOW LEVEL AROUND LOCATIONS LIKE HAYES HILL.
LOCAL ACCUMULATIONS LESS THAN AN INCH ARE POSSIBLE BUT THE MAJORITY
OF THE AREA IS NOT EXPECTED TO ACCUMULATE MUCH DUE TO ABOVE FREEZING
SURFACE TEMPS.

THE NEXT AREA OF LOW PRESSURE MOVING SOUTHEAST FROM
THE GULF OF ALASKA WILL APPROACH THE PACIFIC NW COAST LATE TONIGHT
THEN MOVE INLAND SATURDAY MORNING. ONCE AGAIN UPSLOPE FLOW WILL
INCREASE OVER PORTIONS OF SISKIYOU COUNTY IN NORTHERN CALIFORNIA
THIS EVENING AND PERSIST INTO EARLY SATURDAY MORNING PRODUCING
ANOTHER ROUND OF SNOW. THIS STORM DOES NOT APPEAR TO BE AS STRONG AS
THURSDAYS STORM...BUT STILL WARRANTS A LOWER END WINTER STORM
WARNING.

ANOTHER IN A SERIES OF SHORT WAVES WILL APPROACH THE COAST SUNDAY
MORNING AND MOVE INLAND IN THE AFTERNOON. THE MODELS AGREE THAT THIS
NEXT SYSTEM WILL SPREAD THE MAJORITY OF PRECIPITATION INLAND FURTHER
NORTH INTO OREGON ON SUNDAY. INCREASING WESTERLY FLOW INTO OREGON ON
SUNDAY SHOULD HELP TO ENHANCE SNOWFALL OVER THE CASCADES AND
SISKIYOUS.

.LONG TERM...SHORT WAVE RIDGING OVER THE REGION MONDAY SHOULD
PROVIDE A BRIEF BREAK IN PRECIPITATION. A WEAK SYSTEM WILL MOVE
QUICKLY ACROSS THE AREA TUESDAY. BOTH THE GFS AND ECMWF BUILD
HEIGHTS ACROSS MOST OF THE AREA WEDNESDAY AND THURSDAY AS HIGH
PRESSURE OFF THE COAST OF CALIFORNIA BUILDS IN.

&&

.AVIATION...GENERALLY VFR CIGS TODAY. LOCAL MVFR CIGS AROUND
SHOWERS.

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...
CA...WINTER STORM WARNING FROM 6 PM THIS EVENING TO NOON PDT
SATURDAY ABOVE 4000 FEET FOR CAZ080-082.
WINTER STORM WARNING FROM 6 PM THIS EVENING TO NOON PDT
SATURDAY ABOVE 4500 FEET FOR CAZ083.

PZ...GALE WARNING TONIGHT FOR PZZ350-356-370-376.
     HAZARDOUS SEAS WARNING TONIGHT FOR PZZ350-356-370-376.
     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 5 PM PDT THIS
     AFTERNOON FOR PZZ356-370-376.
     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS UNTIL 5 PM PDT THIS
     AFTERNOON FOR PZZ350.

RH/DW

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MEDFORD OR
210 PM PDT THU MAR 24 2011

CAZ082-083-251200-
SOUTH CENTRAL SISKIYOU COUNTY-
NORTH CENTRAL AND SOUTHEAST SISKIYOU COUNTY-
210 PM PDT THU MAR 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN
CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A WINTER STORM WARNING REMAINS IN EFFECT THROUGH TONIGHT.
SEE THE WINTER WEATHER MESSAGE FOR MORE SPECIFIC DETAILS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY.
WINTER STORM WATCH FROM FRIDAY EVENING THROUGH SATURDAY MORNING
ABOVE 4000 FEET. SEE WINTER WEATHER MESSAGE FOR DETAILS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

CAZ081-250600-
CENTRAL SISKIYOU COUNTY-
210 PM PDT THU MAR 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN
CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A WINTER STORM WARNING IS IN EFFECT UNTIL 10 PM PDT FOR AREAS
SOUTH OF WEED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

AN ACTIVE AND UNSETTLED WEATHER PATTERN WILL CONTINUE THROUGH THE
WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ORZ031-250000-
CENTRAL AND EASTERN LAKE COUNTY-
210 PM PDT THU MAR 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
OREGON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

CAZ080-251200-
WESTERN SISKIYOU COUNTY-
210 PM PDT THU MAR 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN
CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A WINTER STORM WARNING REMAINS IN EFFECT TODAY THROUGH TONIGHT
ABOVE 3000 FEET. SEE THE WINTER WEATHER MESSAGE FOR MORE SPECIFIC
DETAILS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THE WINTER STORM WARNING ABOVE 3000 FEET WILL BE IN EFFECT UNTIL
5 AM PDT FRIDAY. WINTER STORM WATCH FROM FRIDAY EVENING THROUGH
SATURDAY MORNING ABOVE 4000 FEET SEE WINTER WEATHER MESSAGE FOR
DETAILS.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ORZ026-250000-
JACKSON COUNTY-
210 PM PDT THU MAR 24 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
OREGON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

GLASER