PORTLAND, Ore. (KOIN) – With temperatures expected to reach the triple digits in the first major heat wave of the season, TriMet officials warn passengers they could experience delays through the weekend.
MAX trains may reduce speeds to 35 mph if temperatures top 100 degrees due to an overhead wiring system made of copper, which is sensitive to heat. This could result in up to 30 minutes in delays.
Energy companies urge conservation as heat dome arrives in PNW
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