Just a quick note from Gordon … He’ll provide a more in-depth weather forecast for the weekend (it’s going to be wet!) and into early next week.
The winter that just keeps on giving…I’ll do a more indepth forecast tomorrow. The current river forecasts don’t look bad, but are subject to change…as the event changes, as usual:
Hydrologic Outlook
National Weather Service Portland OR
246 PM PST Thu Feb 20 2025
…PERIOD OF WET WEATHER WILL LEAD TO RISES ON RIVERS AND INCREASE CHANCES FOR URBAN FLOODING…
A series of frontal systems will bring heavy rainfall to northwest Oregon and southwest Washington this weekend. Rain will begin
Saturday afternoon, and intensify overnight through Sunday. This will lead to rises on rivers and creeks, especially along the coast
on February 22nd through the 23rd. Main stem rivers may be delayed to respond, and flooding may occur beyond this time frame.
There is around a 25% chance of the Wilson River, the Grays River, and other localized quick responding coastal rivers of reaching
minor flood stage on Sunday. Confidence in flooding is low as the location of heaviest precipitation will greatly depend on where the
warm front sets up. In the case that this system over performs, more widespread flooding is possible.
Along the Cascades heavy rainfall is expected. Heavy rain combined with recent snow will elevate the landslide risk.
Heavy rainfall may also lead to ponding of water, general lowland flooding, and localized urban flooding, especially in low-lying
areas or other poor-drainage areas. Heavy rainfall will also increase the potential for landslides in areas of steep terrain and
debris flows over areas that have been burned by wildfires over the past few years.
Shifts in the forecast storm track can change the outlook and probabilities for river flooding, so be sure to monitor
weather.gov/portland for the latest weather updates, as well as any watches, warnings, or advisories that may be issued. To view the latest river forecasts, visit water.noaa.gov/wfo/pqr.
