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

Monsoonal moisture quickly depart late Tuesday, ending the risk for a stray thunderstorm. Drier weather is expected late in the week with temperatures near or slightly below seasonal normals.

DISCUSSION

Wednesday, the area of low pressure starts to move past the area bringing a slightly more forcing with some instability in the afternoon and evening. The associated moisture quickly exited north of the area late Tuesday, ending the risk for interior thunderstorms.

Thursday, the upper level trough is expected to get closer to the area and this is expected to start bringing cooler temperatures, back to near or slightly below normal with highs in the upper 80s to mid 90s. This is expected to bring some stronger west to southwest winds in the afternoon. Similar temperatures and winds are expected to continue on Friday. For details see the fire weather section. High pressure is expected to bring warmer temperatures to the area for the weekend with dry weather.

AVIATION

High clouds with the occasional shower continues over Northwest California terminals into the evening. Generally, VFR conditions are expected to persist with clearing for the interior later this evening. Coastal stratus is expected to make a return for coastal terminals overnight tonight. Mostly MVFR to IFR ceilings with periods of LIFR are anticipated into early tomorrow.

MARINE

Below advisory northerly winds are forecast through the rest of the day. Winds will gradually shift to southerly as a low pressure system that was Tropical Storm Elida passes by the coastal waters. A 3 to 4 foot southerly swell at 12 seconds is moving through the waters along with a 2 foot northwest swell.

These conditions are generally expected to continue through much of the week. The swells will fluctuate slightly, but generally remain small. Winds are expected to increase slightly to 10 to 15 kt Tuesday night and early Wednesday before diminishing again to less than 10 kt. Thursday afternoon northwest winds start to pick up once again in the southern waters to around 10 to 15 kt. Winds continue to increase over the weekend. MKK

FIRE WEATHER

Wednesday, the upper level low related to the departing tropical system moves closer to the area, The associated moisture quickly exited north of the area late Tuesday, ending the risk for interior thunderstorms.

Thursday and Friday the threat for thunderstorms diminishes; however, some stronger west to southwest winds are expected. At this point it looks like the RH will be too high to warrant a fire weather watch. Will likely add a headline to the forecast once it gets within range of the higher resolution models if the winds remain in the forecast. MKK/JJW

EKA WATCHES/WARNINGS/ADVISORIES

CA... None. NORTHWEST CALIFORNIA COASTAL WATERS... None.


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