846
FXUS66 KMFR 141612
AFDMFR
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MEDFORD OR
812 AM PST SUN DEC 14 2025
DISCUSSION
FOG AND LOW CLOUDS ARE IN SIMILAR LOCATIONS AS
YESTERDAY AND THIS IS BEING SUPPORTED BY THE LATEST SATELLITE
IMAGE. LOW CLOUDS AND FOG WILL CONTINUE THROUGH THE MORNING WITH
THE FOG LIFTING TO A LOW OVERCAST IN THE ROGUE, ILLINOIS AND
SHASTA VALLEY FOR MOST OF THE AFTERNOON. A WEAK FRONT WILL MOVE
INTO THE AREA THIS AFTERNOON WHICH MIGHT BE ENOUGH TO CLEAR THE
LOW CLOUDS OUT, BUT IT MAY NOT BE UNTIL LATE IN THE AFTERNOON IF
AT ALL. THE WEAK FRONT IS NOT GOING TO HAVE ANY IMPACT OTHER THAN
BRINGING A FEW SPRINKLES TO NORTHERN COOS AND NORTHWEST DOUGLAS
COUNTY.
A MORE ACTIVE PATTERN IS IN THE WORKS STARTING MONDAY, BUT THE
MORE SIGNIFICANT STORM WILL COME TUESDAY NIGHT WITH MODERATE TO
HEAVY RAIN ALONG AND WEST OF THE CASCADES AND STRONG WINDS EAST
OF THE CASCADES. THIS WILL BE LOOKED AT IN MORE DETAIL TODAY.
-PETRUCELLI
AVIATION...14/12Z TAFS
AREAS OF LOW STRATUS AND FOG ARE PRESENT
IN VALLEYS WEST OF THE CASCADES, RESULTING IN IFR/LIFR CONDITIONS AT
MEDFORD, GRANTS PASS, ROSEBURG, AND MONTAGUE. OVERNIGHT, IFR/LIFR IS
ALSO EXPECTED TO DEVELOP IN THE KLAMATH BASIN, INCLUDING KLAMATH
FALLS. THESE CONDITIONS WILL PERSIST THROUGH 18-20Z SUNDAY. SOME
AREAS, SUCH AS MEDFORD AND GRANTS PASS MAY SEE LITTLE OR NO
CLEARING, AND JUST SEE CEILINGS LIFT HIGHER LATE IN THE AFTERNOON TO
IFR/MVFR AND PERSIST INTO THE EVENING.
ALONG THE COAST AND JUST OFFSHORE, MARINE STRATUS REMAINS
ENTRENCHED, PRODUCING IFR/LIFR FROM GOLD BEACH SOUTH TODAY. THESE
CEILINGS ARE EXPECTED TO PERSIST INTO LATE SUNDAY MORNING. TONIGHT,
A FRONT APPROACHES THE COAST, WHICH WILL LIFT CEILINGS A BIT ALONG
THE NORTH COAST AND MAY PRODUCE SOME LIGHT DRIZZLE. -BPN
MARINE...UPDATED 800 AM PST SUNDAY, DECEMBER 14, 2025
CONDITIONS
WILL DETERIORATE THROUGH TODAY AS A FRONT APPROACHES THE REGION.
STEEP SEAS ARE ALREADY BEING OBSERVED AT BUOYS 15 AND 229 DUE TO
INCREASING SOUTH WINDS, SO HAVE ADJUSTED THE START TIME OF THE SMALL
CRAFT ADVISORY THIS MORNING. STEEP SEAS WILL BECOME MORE WIDESPREAD
BY THIS AFTERNOON, THEN WORSENING CONDITIONS ARE EXPECTED OVERNIGHT
INTO MONDAY AS LOW PRESSURE DEEPENS OVER THE NORTH PACIFIC AND
ANOTHER COLD FRONT SWINGS THROUGH THE WATERS. THIS FRONT IS EXPECTED
TO BRING SOUTHERLY GALES TO AREAS NORTH OF CAPE BLANCO AND BEYOND 5
NM FROM SHORE LATE TONIGHT THROUGH MONDAY AFTERNOON WITH VERY STEEP
AND HAZARDOUS SEAS EXPECTED FOR ALL OTHER AREAS. WINDS EASE MONDAY
AFTERNOON, BUT WESTERLY SWELL BUILDS (10-12 FT @ 12 SECONDS) BEHIND
THE FRONT WHICH WILL MAINTAIN STEEP SEAS INTO MID-WEEK. ADDITIONAL
FRONTAL SYSTEMS WILL MAINTAIN ACTIVE WEATHER THROUGH THE WEEK WITH
GALES POSSIBLE AGAIN ON TUESDAY AND THURSDAY, ALONG WITH CONTINUED
STEEP TO, AT TIMES, VERY STEEP AND HAZARDOUS SEAS. /BR-Y
MFR WATCHES/WARNINGS/ADVISORIES
OR...CA...NONE.
PACIFIC COASTAL WATERS...SMALL CRAFT ADVISORY UNTIL 1 AM PST MONDAY
FOR PZZ350-356-370-376.
HAZARDOUS SEAS WARNING FROM 1 AM TO 4 PM PST MONDAY FOR PZZ350-
356-370-376.
GALE WARNING FROM 1 AM TO 4 PM PST MONDAY FOR PZZ350-370.
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