Sunny, Warm & Dry All Week

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A large ridge of high pressure is forming over the eastern Pacific Ocean which is going to block any storms from coming into the Pacific Northwest for the next seven day stretch. That means sunny, warm and dry weather is going to stick with us all week.

Not only are we going to be storm free, but it will also likely be the warmest weather we’ve seen in 2013 thanks to a thermal trough moving into western Oregon.

As Northern California heats up because of high pressure, a thermal trough is created as this warm air ascends to higher levels of the atmosphere. That thermal trough will move north Tuesday and Wednesday, bringing not only the heat, but also east winds to western Oregon. As those east winds are forced down the Cascades, that air can heat up even further as the air compresses.

This will all likely peak on Wednesday, which will be our warmest day of the week at 74° in Eugene and 77° in Roseburg.

We’ll see a return of on-shore flow as we head into the end of the week, but we’ll still be much warmer than average at near 70° on Thursday, upper 60s Friday and mid 60s this weekend.

-Meteorologist Melissa Frey

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