More rain and mountain snow will impact the Pacific Northwest and the Northern Rockies in the days ahead.  A relatively cool and wet pattern has gripped the region as of late.

Meanwhile over far eastern WA & north ID (including here in Sandpoint) the skies were murky and rain-filled, winds were calmer, and temperatures were significantly cooler. As of noon, readings were only in the upper 40s to mid 50s, vs lower 70s near the Cascades. #wawx #idwx pic.twitter.com/VSI1OyEQGI

— NWS Spokane (@NWSSpokane) May 20, 2020

In some cases—especially in the interior Northwest (east of the Cascades)—heavy rain has led to a rise on area creeks and rivers.  Significant rainfall was observed between Tuesday night and Wednesday.

Some of the highest 24 rain amounts. #wawx #orwx pic.twitter.com/VvhxByCVMz

— NWS Pendleton (@NWSPendleton) May 20, 2020

With more light-to-moderate rainfall expected on already saturated ground, the risk for flooding will continue for the rest of Wednesday and into Thursday morning.

The Weather Prediction Center’s Excessive Rainfall Outlook includes parts of Washington, Oregon, Idaho, and Montana.  Additional rainfall totals in this region will range between a quarter-inch and an inch.

With colder-than-average temperatures in place, some of the precipitation will fall as snow.  This will mainly occur in the mountain ranges where May snowfall is not too unusual.

Snow totals will gradually add up in the Cascades, Blue Mountains, Sawtooths, Bitterroots, Grand Tetons, and other nearby mountain ranges.  Totals of 6 to 12 inches will be possible at the highest elevations.

Rounds of rain and mountain snow showers will continue through Saturday morning, as shown in the next few images.

Looking ahead, the trend for warmer and drier weather appears to take shape next week and beyond.  Heading into the summer dry season, this will become more common.

Keep it tuned to WeatherNation for the latest forecast.