INSTRUCTIONS

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

DESCRIPTION

* WHAT…Flooding caused by excessive rainfall is possible.

* WHERE…A portion of northwest California, including the following areas, Mendocino Coast, Northeastern Mendocino Interior, Northern Lake, Northwestern Mendocino Interior, Southeastern Mendocino Interior, Southern Humboldt Interior, Southern Lake, Southern Trinity, Southwestern Humboldt and Southwestern Mendocino Interior.

* WHEN…From late tonight through Saturday evening.

* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. Rainfall on already saturated soils will increase the risk of rock and mudslides.

* ADDITIONAL DETAILS… - Showers over the past 24 hours have kept soils very saturated. Another strong pulse of moisture will bring more rain late tonight into early Saturday. Models show a relatively concentrated period or precipitation totaling 1.5 to 3 inches across the southern portions of the area. That amount of rainfall over roughly 12 hours will increase the risk of flooding. - http://www.weather.gov/safety/flood