It looks like the previous forecast held up for the most part. There were a few more showers today than expected, but there wasn’t too much rain at least.
Thursday – High 55°F, Low 50°F; Mostly cloudy all day. Breezy conditions in the morning cleared up by early afternoon. Scattered showers early in the morning as well.
Friday – High 63°F; A bit warmer than expected, as well as a few more showers around. Mostly cloudy all day, with windy conditions throughout the Sound.
WARNINGS – All we have right now is a Gale Warning in effect for the northern waters around the Islands, and a Small Craft Advisory for the interior Sound. For more info, please see here.
We will slowly transition into cooler air as the jet stream shifts around, making way for a cold trough forming off the coast. It will slowly approach the coast overnight on Saturday, and will make landfall Sunday morning. This should cool things down, especially up in the mountains. Once it hits, it looks like it will slow down a bit so don’t expect it to go away any time soon.
A cold front will slowly move in on Saturday which should be pushing in some showers, and bringing some as well. From there the pressure starts to jumble a little bit as the trough moves in. We’ll be on the low side of average, and it looks like there’s a couple fronts that try to form with the low center off the coast, but they’re having a hard time doing it.
As expected, showers will be preceding the cold front overnight tonight into Saturday morning, mainly to south Sound and up by the border. The front will hit around mid morning, so expect rain amounts to increase. A little bit of a rain shadow will form on the northeast tip of the Olympics, but everywhere else should get a healthy dose of water tomorrow. The frontal bands will pass by Saturday evening, so those Dawg fans may get a little damp for the game. We’ll have a brief dry spell overnight, but more rain will be on its way for Sunday morning. Amounts will be less, and the brunt of the system itself won’t last as long. I say brunt, because it will leave behind some scattered showers, including a large convergence zone for north and central Sound.
Now for the fun part. It looks like it’ll still be a little on the warm side tomorrow, so most of the precipitation in the mountains will either be rain or a rain/mix depending on the elevation. The higher elevations and areas north of Lake Chelan will see more snow. The fun begins on Sunday when the temperatures start to drop a little more. Most of the precipitatoin will be snow for the day, and I heard a rumor that snow levels may drop as low as 3,000ft. We’ll see how that goes, but it looks like we’re getting a decent start to mountain snow this year. Let’s hope it lasts…
With all these frontal and rain systems moving in, don’t expect much direct sunlight over the weekend. It’s looking to stay overcast to mostly cloudy through Sunday afternoon, and after that it just all depends on where you live. I’m still expecting mostly cloudy skies on Sunday, with a few sun breaks mainly to the south.
Here are the 24hr precipitation totals…
And here are the 48hr snowfall totals.
Winds will stay on the strong side for some of us for a little bit longer. North Sound, the Olympics, and the northern waterways will see strong wind conditions overnight and into Saturday afternoon where we’ll finally see some calming. Right before that, some of the winds will shift south over Kitsap and south Sound, but those winds won’t be as strong. By Saturday night all areas will see calm conditions, and that’s how we’ll stay for the most part through the rest of the forecast.
We have a cool down in our future, but it’ll be a little on the slow side. Saturday will see highs in the mid 50s for south and central Sound, cooling a little to the north. Lows will be in the mid to high 40s. Sunday will see the cooler temperatures, with highs reaching into the low 50s for the Sound, with slightly warmer temperatures closer to the southern waters. Lows will be a little cooler as well, dipping down to the low 40s.
TL;DR: More rain on the way, as well as cooler temperatures.