Waarschuwingen

Hydrologic Outlook issued November 16 at 3:52PM PST by NWS Portland ORESFPQRIt is shaping up to be a wet week ahead. Of particular concern is thepotential for heavy rain Tuesday night through Friday morning, whichcould result in some flooding for area creeks and rivers.Current projections of the most likely amounts for storm totalprecipitation range from 5 to 8 inches for the Coast, Coast Range,and Cascades, with 2.5 to 4 inches for inland valley locations,including Portland, Salem, and Eugene. Upper end projections, withabout a 10 percent chance of occurring, range from 6 to 11 inchesfor the Coast, Coast Range, and Cascades, with 5 to 7 inches forinland valleys. Snowmelt in the Cascades from 2000 to 4000 feetelevation could add runoff, although the main cause for floodingwould be the heavy rain.Rivers will rise starting Wednesday. Small streams andfast-responding rivers could see flooding as early as Wednesdaynight or Thursday, with slow-responding rivers potentially floodingby this weekend. Heavy rainfall will also cause water ponding in lowlying areas and other areas of poor drainage.Monitor weather.gov/portland for the latest updates and any watches,warnings, or advisories that may be issued for this event.

National Weather Service