While some locations across Washington, Oregon, Idaho, Montana and Wyoming will already be experiencing a storm diving southeastward into the U.S. from western Canada into the start of the week, AccuWeather meteorologists warn there is much storminess to come as the week progresses.

Early-week pattern

The first storm impacting the Northwest through early week will continue tracking eastward and eventually through the northern Rocky Mountains into the early morning hours on Monday. Additional pockets of showers and periods of high-elevation snow showers will occur during this time.