Tionesta, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

466
FXUS66 KMFR 282309
AFDMFR

Area Forecast Discussion
National Weather Service Medford OR
409 PM PDT Sun Jun 28 2026

.UPDATE...Aviation discussion updated.

&&

.AVIATION...29/00Z TAFs...VFR condition prevail this afternoon,
with the exception of some areas along the coast, coastal mountains,
and the western slopes of the Cascades and foothills, where showers,
MVFR ceilings and terrain obscurations are possible due to upslope
winds. Shower activity will dissipate tonight, with MVFR ceilings
spreading to much of the coast and the Umpqua Basin. This should
burn off through the morning, with VFR then prevailing through the
rest of the day.

&&

.PREV DISCUSSION... /Issued 244 PM PDT Sun Jun 28 2026/

DISCUSSION...Cool temperatures and cloudy skies continue today as
an upper trough lingers over the area. Northerly flow aloft is
keeping slight shower chances (20-40%) over the Cascades north of
Crater Lake, but activity elsewhere should be minimal.

Overnight lows look to be on the cooler side again as well.
Observations from areas east of the Cascades indicate a patchwork of
brief frost/freeze conditions from Saturday night into this morning.
Current observations show either warmer temperatures, higher
humidities, or a combination of both. The conclusion, at least for
this discussion, is low confidence in hazardous conditions and no
need for a Frost Advisory. However, areas where cloud cover
decreases this afternoon would see more radiational cooling.
Individuals with sensitive plants or animals may want to consider
preventative actions.

The upper trough remains in place but weakens through the week,
bringing a gradual warming trend but with temperatures staying below
seasonal norms through Thursday. Shortwaves following the trough
look to keep afternoon breezes just above normal speeds, especially
over elevated terrain. Winds of 10 to 20 mph with gusts approaching
30 mph may be present at higher elevations. Drier air aloft is
minimizing thunderstorm chances through the forecast period.

Currently, Friday is showing a return to normal temperatures. A weak
upper ridge looks to nudge daytime highs about 5 degrees above
normal across the area. This would bring high 60s to mid 70s along
the coast and high 80s to mid 90s to west side valleys. East of the
Cascades would see temperatures in the mid to high 80s. A zonal flow
pattern could keep uneventful seasonal conditions in place beyond
next weekend. -TAD

&&

MARINE...Updated 100 PM PDT Sunday, June 28, 2026...North
winds continue to maintain strengthen today, and will result in very
steep and hazardous seas from Gold Beach southward this afternoon
and evening. North of these areas, incoming swell and north winds
will maintain steep seas. A brief period of gale force gusts are
possible south of Brookings and within 20 nm from shore today. This
pattern will further strengthen Monday through Tuesday evening, with
gales likely south of Nesika Beach. Elsewhere, northerly winds and
strengthening northwest swell may continue steep seas through Tuesday
evening and potentially into Wednesday. Winds ease slightly with
improving conditions late in the week.

&&

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

PACIFIC COASTAL WATERS...Small Craft Advisory until 11 PM PDT Tuesday
     for PZZ350-356-370-376.

Hazardous Seas Warning until 11 AM PDT Monday for PZZ356-376.

     Gale Watch from Monday morning through Tuesday evening for
     PZZ356-376.

&&

$$