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StormTracker 9 Forecast: Increasing chance of Wednesday showers

Increasing chance of Wednesday showers

Posted: Aug 20, 2019 10:44 AM
Updated: Aug 20, 2019 11:02 AM

EUGENE, Ore. -- It’s the calm before the “storm” today. Sunshine will remain with us most of the day with clouds building tonight. The coast this morning woke up to marine clouds and fog. Mostly cloudy skies will likely persist at the coast ahead of tomorrow’s cool front.

Fast Forecast:
Tuesday: Mostly sunny. Highs in low to mid 80s
Wednesday: Isolated afternoon showers. Highs in low 70s to mid-70s
Thursday: Partly sunny. Highs in upper 70s to low 80s
Friday: Mostly sunny. Highs in low to mid 80s
Saturday: Mostly sunny. Highs in low to mid 80s
Sunday: Sunny. Highs in low to mid 80s
Monday: Sunny. Highs in low to mid 80s

The low-pressure center will be pushing into British Columbia with the trail cool front moving into our region tonight into Wednesday. This will bring a decent shot of showers and cooler temperatures. Highs inland Wednesday will only be in the low to mid 70s.

Models are pointing to plentiful moisture given predicted precipitable water values between 1.5 and 1.7 inches. Precipitable water is the depth of water in a column of the atmosphere, if all the water in that column were precipitated as rain. Values that high are only seen every 10 to 30 years during the month of August.

The biggest question remains whether or not there will be enough forcing to generate significant precipitation. The most likely scenario is anywhere between 0.25 to 0.50 inches of rain in the Willamette Valley. With that said, models have showed range from as much as an inch to as little as a few hundredths.

Either way, this storm will be quite beneficial to our current fire danger by moistening fuels and temporarily limiting fire danger. Currently, the coast is under moderate fire danger, while the Willamette Valley, Umpqua Basin, and Cascades are in high fire danger.

Models point to a few lingering showers on Wednesday night into Thursday morning. Drying is expected throughout the rest of the week into the weekend. Temperatures are expected to remain near average across the region.

Models are also pointing to a high-pressure ridge building into the region by midweek. If this comes to fruition, expect several days of hotter weather starting next Tuesday.

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

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