Portland, OR – Drivers in Portland should brace for slick roads and reduced visibility on Monday, September 29 as a storm system moves through the metro area, bringing steady rainfall that’s expected to disrupt travel. The National Weather Service has issued a weather advisory, warning of travel slowdowns on I-5 and I-84, with the heaviest showers expected by late morning.
Heavy Rainfall Expected Across Northwest Oregon
The National Weather Service forecasts an 80% chance of rain on Monday, particularly in Multnomah, Washington, and Clackamas counties. Rain will begin late Sunday evening and continue into Monday night, accumulating a quarter to half an inch across much of the Willamette Valley. Conditions will remain damp into Tuesday, with the likelihood of additional showers at 70%.
Impact on Traffic and Outdoor Events
Localized street flooding is a significant concern, especially in low-lying areas of Portland and Gresham. Drivers are urged to watch for ponding near freeway ramps and slow-moving traffic through bottlenecks. The storm is also expected to affect outdoor events, with possible cancellations Monday afternoon due to the intensifying rain.
“Motorists should allow extra time for their commutes and avoid standing water on highways to stay safe,” the National Weather Service warned.
Actionable Safety Tips for Residents
As the storm approaches, emergency managers urge residents to clear storm drains and secure outdoor furniture to prevent damage from strong winds and heavy rain.
“Be sure to prepare your property and vehicles for the storm. A little preparation can go a long way,” said Portland emergency management authorities.
Unsettled Weather Continues Into Early October
By Wednesday, the storm is expected to intensify, with another round of showers in the forecast. Forecasters have also warned of potential thunderstorms as cells move through the area. The arrival of October will bring cooler temperatures, with highs in the mid-60s and lows in the mid-50s.
Five-Day Forecast for Portland, Oregon
- Saturday: Increasing clouds, high near 77°F.
- Sunday: Mostly cloudy, high near 75°F.
- Monday: Showers likely, high near 67°F.
- Tuesday: Showers likely, high near 67°F.
- Wednesday: Showers, chance of thunder, high near 66°F.
Conclusion
Portland residents should be ready for rainy weather and hazardous driving conditions as a storm system moves into the area Monday. Authorities recommend staying updated with weather advisories and adjusting travel plans accordingly. Prepare early for a wet start to October, as further storms may affect the region throughout the week.
How are you preparing for the storm? Share your tips in the comments below.
