Canby, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

947
FXUS66 KMFR 221152
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
452 AM PDT Thu May 22 2025

.Updated Aviation Discusssion

.DISCUSSION...An upper trough is moving into the area this morning
and will move east of the forecast area this afternoon. Radar image
shows isolated showers in northern Lake and Klamath County and along
the coast and just offshore. Isolated showers are expected in these
areas this morning, then it will be dry in the afternoon as the
upper trough moves east.

Another weak upper trough will move into the area later Thursday
night into Friday morning, but this isn`t expected to have much, if
any affect on the weather. Some of the guidance suggest convective
showers could break out east of the Cascades Friday afternoon.
Instability is marginal, and some of the guidance suggest it could
be unstable enough for an isolated thunderstorm or two in eastern
Lake County Friday afternoon.

There`s good agreement with upper ridging remaining a play maker for
the first half of the weekend with continued dry and warmer weather
for the interior.

The operational models have come into better agreement with the
general consensus showing the upper ridge remaining in place into
the weekend. The upper trough will slowly move east towards the
coast late Sunday afternoon and could trigger a few showers along
thew coast and an isolated thunderstorm or two in the northern
Cascades. However, this could end up being the exception and not the
rule with the expectation that it will remain dry, with warmer
afternoon temperatures for the interior this weekend. Afternoon
highs are expected to be in the lower 80s for the interior westside
valleys and upper 70s east of the Cascades Saturday, with further
warming Sunday with low to mid 80s for the interior westside valleys
and upper 70s to low 80s east of the Cascades.

The upper trough does move into the area the area Memorial Day, but
it will weaken at the same tine which makes sense since it will be
running into the upper ridging. The weakening of the trough will
result in continued dry and warm weather for most locations for
Memorial Day.

After Memorial Day and probably for most of next week. Evidence is
pointing towards dry and warm weather and some guidance suggest a
stronger upper ridge nudging towards the Pac NW late next week into
the following weekend resulting in afternoon temperatures heating up
for the interior. Stay tuned. -Petrucelli


&&

.AVIATION...22/12Z TAFs...Along the coast and just offshore.
Ceilings will vary from VFR to MVFR this morning. There could be
brief periods of IFR ceilings between 12-18z south of Cape Blanco.
VFR conditions should be the predominate condition this afternoon
and evening, then MVFR ceilings return as another weak disturbance
arrives at the coast towards the end of the TAF period.

Inland, VFR conditions are expected to be the predominate condition
through the TAF period. Roseburg could experience brief periods of
MVFR ceilings until 16z, but confidence is not high enough to
include the lower conditions in the TAF. Breezy afternoon/evening
winds are expected at all terminals. -Petrucelli


&&

.MARINE...Updated 200 AM Thursday, May 23, 2025...Relatively calmer
conditions are expected into tonight. North winds will increase
Friday morning with low end small craft conditions possible for the
southern waters between 5 nm and 40 nm from shore and from about
Gold Beach south Friday afternoon and night.

Winds and seas trend lower Saturday. A disturbance may move into the
area Sunday into Monday with winds becoming southerly and seas
increasing slightly. -Petrucelli


&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...None.

CA...None.

PACIFIC COASTAL WATERS...None.

&&

$$