Redway, California Weather Forecast Discussion

130
FXUS66 KEKA 182208
AFDEKA
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
235 PM PDT Thu Sep 18 2025
.SYNOPSIS...Inland tempertures will trend lower with the arrival
of cloudcover and isolated showers. Thunderstorm activity is
expected through Saturday. A sharp warmup will occur Monday.
Additional showers will be possible early to mid next week.
&&
.DISCUSSION...The remnants of a tropical system is currently
streaming moisture and cloudcover from the south. Chances for
showers increase from the south to north. SPC mesoanalysis showed up
to 250 to 500 J/kg pf MUCAPE early Thursday afternoon with a modest
cap with CIN up to 50 J/kg. Thunderstorms are forming this afternoon
as the cap has broken. Precipital water values are already analyzed
to be 1.3 inches through the southern counties and rising, and this
will continue to decrease chances for dry thunderstorms with
stronger downdraft winds. As the column saturates late Thursday and
Friday, the convective showers and thunderstorms will be capable of
heavy rainfall and possible hydrological concerns. This would be
very localized in nature however. Camera observations of early
afternoon thunderstorms revealed healthy rain bands reaching the
ground in the Yolla Bolly region, which bodes well for the forecast.
A weak surface low will form off the coast tonight, increasing
forcing and drawing the precipitation activity westward through
the coastal regions. Models continue to become more aggressive with
this westward push, and precipitation/thunderstorm chances have been
increased over the coast. A stray thunderstorm cannot be ruled out
along the coast or coastal waters as well. Nocturnal thunderstorms
are also forecast mainly for the southern counties as a stronger
vorticity maximum pushes through. Instability is greatly in question
Friday as the significant cloud shield and ongoing showers/light
rain will inhibit daytime heating. Trinity County currently has the
greatest chance for Thunderstorms Friday, but activity may spread
into the surrounding counties.
Models begin pulling the moisture out Saturday, but this day does
appear to have a good chance for diurnal clearing and surface
heating. This may bring the greatest coverage and probability (25+%)
for interior thunderstorms for mainly Trinity County.
A sharp warmup is forecast Monday with inland temperatures reach
the upper 90s to 100. There are some indications another area of
low pressure may drive in deeper moisture again early to mid next
week. JJW
&&
.AVIATION...LIFR conditions along the coast are expected to break to
VFR ceilings this afternoon. Northerly winds are expected to be
strongest on exposed headlands with gusts to 25kts possible, but not
expected. HREF shows low (

NWS EKA Office Area Forecast Discussion