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Hydrologic Outlook

HYDROLOGIC OUTLOOK
WAC009-027-031-033-035-041-053-057-061-067-073-210030-

HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE SEATTLE WA
534 AM PST Mon Nov 20 2017

...Some river flooding is possible in Western Washington this
week...

Periods of heavy rain and unseasonably high snow levels could
drive some Western Washington Rivers above flood stage by
Wednesday.

The threat of flooding will increase as a frontal system moves
through the region Tuesday and Tuesday night with the snow level
8000 to 9000 feet. That storm could bring 2 to 5 inches of rain to
the mountains, with the heaviest amounts over the Olympics and
Mount Rainier. The snow level will remain relatively high, 6000 to
7000 feet, as another front moves through Wednesday night and
Thursday.

At this time, river models indicate that some of the more flood-
prone Western Washington rivers could experience minor flooding by
Wednesday.

$$

www.weather.gov/seattle




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