* AFFECTED AREA...Trinity County, Northeastern Humboldt County,
and southwestern Siskiyou County.

* THUNDERSTORMS...Isolated to scattered dry thunderstorms
Tuesday afternoon and evening. Activity may continue overnight
into early Wednesday morning.

* OUTFLOW WINDS...Gusty and erratic outflow winds likely with
any thunderstorms. Winds may gust to 50 mph or higher with the
strongest cells.

* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

* WHAT...High astronomical tides will cause minor flooding in
low lying areas around Humboldt Bay. Up to one half foot of
saltwater inundation above ground level is possible near
shorelines and tidal waterways. Between 8.8 and 9.0 feet MLLW
at the North Spit tide gauge is predicted.

* WHERE...Northern Coastal Humboldt County.

* WHEN...From 11 PM this evening to 2 AM PDT Wednesday. High
tide is at 12:15 AM at the Humboldt Bay North Spit tide gauge.
Saltwater inundation will be possible 1 to 2 hours before and
after high tide.

* IMPACTS...Flooding of low lying areas around Humboldt Bay
including parks and roads with only isolated closures expected.
Flooding will likely impact Jackson Ranch Road in the Arcata
Bottoms and several roads in King Salmon.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.