Rain continues to dominate Portland’s weekly forecast with the National Weather Service issuing a hydrologic outlook that warns of potential flooding from Wednesday through Saturday. According to theNWS update, a succession of storms will steer significant precipitation toward Northwest Oregon and Southwest Washington.
Portland residents can expect showers and thunderstorms carrying into the week, with snow levels dipping to 1900 feet by Monday and a high around 46 degrees, the weather pattern characterized by persistent showers, possibly escalating into heavier rains particularly from Tuesday night into Friday morning, concern grows over the impact this may have on local bodies of water. Rivers are predicted to rise starting Wednesday, with potential flooding in smaller streams and rivers as early as Wednesday night or Thursday, while larger, slower-responding rivers may not flood until the weekend.
Amidst this deluge, visibility is forecasted to remain relatively clear at 10 miles despite a dense blanket of clouds, with temperatures ranging from low 39 degrees to highs around the low 50s throughout the week. The frequent rains will pose challenges for drainage in low-lying areas, where water ponding is a likely occurrence.
TheNWShas downgraded projected total precipitation amounts slightly, yet concerns loom as higher end projections, which hold around a 10 percent chance of materializing, suggest the region could see up to 6 to 10 inches of rain in the Coast, Coast Range, and Cascades, and 2.5 to 3.5 inches for inland valleys, the NWS highlights that although snowmelt will contribute to the runoff, it is the heavy rain that will mainly drive any flooding residents should stay updated with the latest weather reports and heed any advisories issued.
As the city girds itself for the potential for water-related disruptions, theNWSencourages public vigilance, urging citizens to monitor their official website for real-time updates and guidance on how to prepare for and respond to flood conditions. ” Heavy rainfall will also cause water ponding in low lying areas and other areas of poor drainage,”states the report, emphasizing the importance of staying informed as the situation evolves.
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