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StormTracker 9 Forecast: Rain and snow on the way next week

Our StormTracker 9 meteorologists are tracking sunshine and dry conditions through first half of weekend, then showers and mountain snow heading into next week.

Posted: Nov 21, 2019 9:39 AM
Updated: Nov 21, 2019 10:07 AM

EUGENE, Ore. -- It was a sunny, cold start on Thursday with high pressure locked in place.

This will remain in place through Saturday due to what is called an Omega Block. An Omega Block is when the jet stream resembles the Greek letter Omega. The region under the Omega Block experiences dry, sunny weather, while those to the east and west will see more rain showers and clouds. Oregon is currently under the block, hence the dry, sunny conditions we are experiencing.

Fast Forecast:

Thursday: Morning frost. Sunny. Highs in low 50s
Friday: Morning frost & patchy fog. Sunny. Highs in low 50s
Saturday: Morning frost & patchy fog. Sunny. Highs in low 50s
Sunday: Iso. showers. Snow level 6,500 ft, dropping to 3,500 ft overnight. Highs near 50
Monday: Iso. showers. Snow level 3,000 ft, dropping to 2,500 ft overnight. Highs in mid 40s
Tuesday: Showers. Snow level 2,000 ft, raising to 2,500 ft during afternoon. Highs in mid 40s
Wednesday: Showers. Snow level 2,000 ft. Highs in mid 40s

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During this time, you can expect dry, sunny weather with highs in the low 50s and overnight lows dropping into the 20s and 30s. Frost will also be likely during the morning hours.

The pattern turns wetter and cooler starting on Saturday night into Sunday, as a series of fronts and low-pressure systems traverse across the region. The first front will likely bring light showers, especially north, arriving Saturday night or Sunday morning. The exact timing is still being worked out in the models.

Next week, there will be cooler, wetter weather taking hold. This will be a deep, shortwave trough developing over the West Coast, pulling colder air southward. There is still a lot of certainty in the models as to track, intensity, and timing. All will be key in how much precipitation we get and what kind of precipitation we will see.

Some scenarios in the models do have snow falling to the valley floor, while others are milder, wetter and even windier. Other scenarios are closer to our normal late-November weather, which is rain the valleys and snow in the mountains. At this time, the latter scenario appears most likely. Remember this -- models are just gossip, not gospel, but they do tell a story. That story is more precipitation next week and cooler temperatures.

If you plan on traveling for Thanksgiving, in the passes and possibly even in parts of the Coast Range, you will likely run into snow. The forecasted snow level is 2,000 feet. Stay tuned as the forecast will get more concrete this weekend and early next week.

For more information, visit the KEZI 9 News StormTracker 9 weather page.

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