Atmospheric River Forecast: Wind, Rain, and Minor Severe Weather Risk Wednesday
Portland is under a Storm Tracker alert due to an incoming atmospheric river expected to bring significant weather disruptions. This weather system is anticipated to start affecting the area on Tuesday afternoon, with heavy rainfall and winds increasing overnight.
Weather Forecast for Wednesday
The atmospheric river will bring rain and gusty winds to Portland and surrounding areas. Meteorologists warn of potential severe weather conditions as a cold front moves through. Areas along the coast and in the Willamette Valley may see wind-related complications, including power outages and downed trees.
Rainfall Expectations
- Coastal and Cascade areas: Rainfall of over 2 inches by Friday.
- Willamette Valley: Rainfall expected to range from 1 to 2 inches.
King Tides will also start on Wednesday and continue through Friday, leading to concerns about low-land flooding in coastal regions during peak tides.
Severe Weather Risks
According to the Storm Prediction Center, there is a slight chance of low-topped thunderstorms. These storms may lead to brief tornadoes or waterspouts. However, the probability remains minimal. Meteorologist Rhonda Shelby advised the public to remain cautious but not overly alarmed about the tornado potential.
- 2% chance of low-topped thunderstorms.
- Low likelihood of waterspout or tornado activity.
- Very low chance of hail exceeding 1 inch in diameter.
- Minimal wind gusts expected beyond 57 mph.
As the weather unfolds, officials urge coastal visitors to stay vigilant for increased sneaker wave risks. After this weather event, another cold front will arrive on Thursday, though it is expected to have less impact than the current system.
For real-time updates, download the Emegypt Weather App to access current watches and warnings directly on your device.
