One product issued by NWS for:
Hydrologic Outlook
Hydrologic Outlook WAC033-045-053-057-061-312200- Hydrologic Outlook National Weather Service Seattle WA 145 PM PDT Thu May 30 2024 ...THREAT OF RIVER FLOODING SUNDAY THROUGH TUESDAY FOR PORTIONS OF WESTERN WASHINGTON... A late season atmospheric river will bring moderate to heavy precipitation from Sunday afternoon through Tuesday across all of western Washington. Heavy rainfall rates are possible over the southwest Olympics, and the Cascades. Total rainfall amounts will range from 1 to 2 inches in the lowlands, and 2 to 4 inches in the mountains. Snow levels above 5000 feet will result in most precipitation falling as rain. This will result in rivers running unusually high, with the Skagit, Snohomish, Skykomish, White, and Skokomish Rivers potentially over action stage. The Snoqualmie River potentially will reach minor flood stage. This may impact any use of the river flood planes that are normally dry this time of year. Rivers will crest sometime between Sunday and Tuesday. The next update will be provided Friday afternoon. Please monitor the latest river forecasts from the National Weather Service for additional information. $$ HPR