textproduct: Eureka
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
Generally cool and moist conditions continue today with Isolated thunderstorms possible again in northern Trinity County. Warmer and drier conditions are likely early to mid next week.
KEY MESSAGES
- Isolated thunderstorms are possible again in Trinity County Saturday.
- Warming trend returns next week.
DISCUSSION
An upper level trough continues to exert influence over Northwest California. Increased cloud cover today will maintain cooler interior valley temperatures in the upper 70s to 80s. The trough will continue eastward today; however, some lingering moisture and instability could bring isolated thunderstorms/showers for the interior again. The highest chances are in the Trinity Horn and possibly the Yolla Bollys, but activity is still expected to diminish compared to yesterday.
A warming trend will begin Sunday and continue into early next week. Temperatures in the 90s to near triple digits are possible again by Monday. Generally minor to moderate HeatRisk is expected, with heat largely remaining below advisory levels. Troughing to the north of the area on Tuesday and Wednesday could bring additional chances of interior thunderstorms. Confidence is not high as instability and moisture currently look meager, but this will need to be watched. JB
AVIATION
MVFR to IFR ceilings will continue to fill in along the coast early this morning. MVFR ceilings will continue for KUKI through sunrise, with valley fog possible due to recent rains and high dewpoints. Some scattering of clouds could be expected for coastal terminals with coastal stratus expected to fill back in tonight.
MARINE
Winds and seas have generally dropped to gentle or even calm across all waters. There is a minor, but persistent, mid period northwest swell around 4 to 5 feet that may be more obvious with the milder seas/winds. North winds will gradually increase again this weekend with near gale force gusts in the outer waters by Sunday afternoon. These winds will pull closer to shore brining steep, short period seas to all waters through early next week.
EKA WATCHES/WARNINGS/ADVISORIES
CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... Small Craft Advisory from 9 PM this evening to 3 AM PDT Monday for PZZ470-475.
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