A Taste of Fall

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Meteorologist Melissa Frey’s Forecast Discussion:

The weather sure looked different this weekend! Our high temperature Sunday of 69° was the coolest we had seen since August 1st! Rain showers moved across the area, amounting to 0.15″ at the Eugene Airport. This was the most we had seen since June 25th!

We’re starting the week with cloud cover across western Oregon and several small “storms”, more like “disturbances” that will try and push inland over the coming days.

A deep trough of low pressure has set up camp just off shore. This trough is going to stay parked there all week. It can’t move east because blocking it is a large ridge of high pressure that is over the four corners region. With the jet stream shooting into western Oregon and several storms developing off-shore it’s going to be an interesting week.

The first front is already spreading rain to the waters just off shore of the north coast. This front will bring a few isolated showers to the central and north coast, but will likely stall out before getting to the valley. This will leave the valley under mostly sunny skies for the afternoon. Highs will be back in the upper 70s. There is a slight chance that we could see a few very light showers popping up late in the day, but most of this will stay west.

Tuesday will start out cloudy once again, but as the ridge of high pressure over the four corners region strengthens, this will force the trough further off-shore. This means warmer weather for the valley, and another front to be blocked from making it over the coast range. Highs will be in the low 80s. The coast however, will likely see light rain again and mostly cloudy skies.

Morning clouds and afternoon sunshine will be the case again for the Willamette Valley Wednesday and Thursday. Our neighbors to the west and north will likely see light showers during this time. Highs will stay in the low 80s.

By this weekend the trough of low pressure should push inland. This would mean cooler temps, and a chance for rain Sunday.

Have a great start to your week!
~Meteorologist Melissa Frey

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