波特蘭冬季天氣轉變:從凍雨到降雪再到降雨
波特蘭在週五經歷了最後一輪冬季天氣,凍雨在夜間和早晨轉為降雪。波特蘭都會區出現了凍雨和雪的混合天氣,塞勒姆附近的一些地區報告了輕微的冰積累。KGW氣象學家指出,預計在早晨通勤期間將持續降雪,降水將在上午10點左右逐漸減少。預計氣溫將略微升至冰點以上,有助於道路上的冰雪融化。
駕駛者被建議在週五早晨特別小心,尤其是在高海拔地區,那裡的結冰情況持續存在。威拉米特河谷部分地區報告了高達0.25英寸的冰積累,某些地區預計會有1到2英寸的新雪。到週五下午,預計氣溫將升至冰點以上,從南部都會區開始向北移動。然而,道路狀況仍然不確定,因為解凍過程取決於升溫的時間和積雪及冰的數量。
展望未來,預計一個較暖的天氣系統將在週六下午為該地區帶來降雨,氣溫將升至約40度。預計這個系統將融化並沖走任何殘留的冰雪。預計降雨將持續到週日和週一,氣溫將保持在40度左右,無論白天還是夜晚。居民被鼓勵隨時關注天氣狀況,因為該地區正從冬季天氣過渡到較溫和的氣溫。

Portland snow timeline: Here's what to expect for Friday
Freezing rain overnight transitioned to the last round of snow in the Portland metro area Friday morning.
www.kgw.com
Portland winter weather: A timeline for when snow, sleet, freezing rain are expected to arrive
Winter precipitation could start as early as Thursday morning, with slick roads by the afternoon.
www.oregonlive.com
Winter weather alerts span across Oregon, Washington Thursday
Ice, snow, and extreme cold alerts stretch across western Oregon and parts of southwest Washington in preparation of a major winter storm this week.
www.koin.com
Advisories, Watches, & Warnings posted ahead of winter weather across the region
NWS Portland has issued a Winter Storm Warning for the Portland Metro area beginning at 4 a.m. Thursday.
katu.com
Here's how much snow is expected in Portland metro area
A city-by-city breakdown of how much snow is expected in the Portland metro on Thursday and Friday.
www.kgw.com
Winter storm blasts Pacific Northwest leading to chaos on multiple highways around Portland
A potent winter storm is threatening a mix of significant freezing rain and accumulating snow across a swath of the Pacific Northwest – including the
www.foxweather.com
Freezing rain turns to snow over Portland metro area Friday | Weather Impact Alert
Snowfall is expected to end by 10 a.m. on Friday.
www.kgw.comFreezing rain and snow possible for Portland metro area Thursday and Friday
Cold weather greeted most of Oregon Tuesday morning. Now, a weather system coming from the Pacific Ocean could bring freezing rain or snow to Portland
www.opb.org
Confidence increasing in a disruptive snow/ice event in lowlands
I’m feeling more confident this evening that weather really WILL disrupt our lives Thursday and Friday. There are increasing signs that widespread sno
www.kptv.com