Plateau Weather

Plateau Weather Weather info for the Sammamish and Issaquah Plateau

11/13/2025

Wednesday evening update: Let’s get the bad news out of the way first…it’s too cloudy (and rainy) to see the Northern Lights tonight. Sure is fun to see the pics from around the country though!

Rain is picking up, and will stick around overnight thru tomorrow…close to an inch of rain by tomorrow night. Might get a bit gusty mid-day tomorrow, but not expecting any major impacts. More rounds of rain thru the weekend!

Northern lights are out tonight! I’ve popped out a few times to try to see them, but the pesky clouds aren’t helping any...
11/12/2025

Northern lights are out tonight! I’ve popped out a few times to try to see them, but the pesky clouds aren’t helping anything…if you have a clear view of the north sky, go out to take a look! The long exposure of “night mode” on your phone cameras will help you spot them, even if they’re not visible to the naked eye.

11/11/2025

This past weekend sure was a nice break during late fall - almost had a “fake spring” feel to it, with temps on Sunday in the mid- to upper-60s! Looking back through my notes from past years, it was in the mid-20s three years ago…while I do like the warm temps, I'm definitely ready for a good cold snap.

We had a few showers roll through today (Monday), but we'll get another break in the action tomorrow (Tuesday) for Veteran's Day. We'll start off the day with some patchy morning fog, burning off to partly-sunny skies and afternoon temps in the low-50s.

Wednesday brings the return of more "normal fall weather". A few scattered showers look possible in the morning hours, becoming steadier through the afternoon into the evening... Thursday and Friday look wet too. There's potential for gusty winds Wednesday night into Thursday, but there's some disagreement in the guidance from the computer models, which is leading to pretty wide range of possibilities. We should know more in the next day or so, but it is safe to assume it'll be breezy Wednesday afternoon thru Thursday. Stay tuned!

11/05/2025

Tuesday evening update: for the third time in two weeks, we’re under a Wind Advisory from the National Weather Service - from 6pm tonight to 4am tomorrow (Wednesday). But the Plateau is on the very western edge of the advisory…so while they’re calling for east to southeast winds of 20-30mph, with gusts up to 45, I don’t think they’ll be that strong around here…it’ll definitely be on the gusty side, but our peak gusts should only be in the upper 30mph range. Enough to bring leaves or a few branches down, and maybe some scattered power outages.

Okay, forecast over - but let’s dig into it a bit!

This is what’s sometimes called a “Cascadia Gap” wind event - the center of a weather system is well off-shore over the Pacific Ocean, meaning we’re only getting showers out of it. But it does cause a pretty big difference in atmospheric pressure between it and eastern Washington! Air wants to move from areas of higher pressure to areas of lower pressure…think of what happens when you blow up a balloon, then let the air back out - the high pressure inside the balloon wants to equalize with the lower pressure outside. As the air tries to get from eastern Washington out to the Pacific, it has to funnel between all the gaps in the Cascades. As it squeezes through, it actually speeds up - another analogy is what happens when you stick your thumb on the end of a garden hose. (That increase in speed and pressure can cause these winds to be fairly warm too!)

This is more impactful to communities higher up in the foothills, closer to the actual gaps in the mountains - like Skykomish and Gold Bar along US-2, North Bend and Snoqualmie along I-90, or Enumclaw and Buckley along SR-410. They can get some howling winds out of these types of events. Since the Plateau roughly sits on the I-90 corridor, we get the residual of the winds from Snoqualmie Pass. But by the time they get down to Bellevue or Seattle, they’re just breezy!

11/04/2025

I’m gonna guess it won’t surprise you to know that November is historically our wettest month of the year. This week will sure help confirm that fact!

The next round of precip makes its way towards us tomorrow (Tuesday) afternoon and evening. Light rain overnight, turning showery on Wednesday…near a half inch of rain by the time it moves through. This system will also bring some gusty winds overnight and through the day Wednesday - looks similar in strength to this past Saturday’s storm, with peak gusts in the upper-30 mph range…but much longer in duration. This time, they’ll start out from the east/southeast through the gaps in the Cascades, before shifting around from the south by Wednesday afternoon.

Another wet system Thursday and Friday, bringing an additional inch of rain along with it. Winds will “only” be breezy with that one though! An early look at the coming weekend seems to indicate a calmer one than the past couple weekends.

Back to the “wettest month of the year” tidbit - by the end of this week, we’ll most likely have had more rain than June, July, and August combined! Problem is, we really do need all the rain we can get…we’re several inches below average for the year, which is contributing to still being considered under drought conditions.

11/01/2025

Saturday morning update: wet and windy start to November, though a few tweaks since last night.

Winds - the NWS shifted the timing of the Wind Advisory up, to 5am this morning until 1pm this afternoon, as the system approached the coast a little quicker than previously thought. Still going to be pretty gusty for the next few hours, but peak winds should be done by mid-day, leaving us with a breezy afternoon. A few gusts could get as high as around 40 mph.

Rain - probably not surprising to hear it’s quite wet out there. My backyard station has gotten almost 1.5” of rain since yesterday afternoon! We should be past the bulk of it - light rain continues for the next couple hours, turning to showers this afternoon. A convergence zone will develop this afternoon, which could bring heavier showers if it slides this far south. Showers continue thru tomorrow morning, but we’ll get to dry out a bit tomorrow afternoon and evening!

11/01/2025

⚠️💨 A Wind Advisory is in effect on Saturday from 9am to 5pm 🍃⚠️

No, this isn’t a duplicate post from last week - for the second Saturday in a row, we’re expecting gusty winds tomorrow (which is November 1, if you need another reminder or more confirmation). The National Weather Service is calling for winds from the south at 10 to 20 mph, with gusts up to 45 mph. I don’t think that’s out of the question for the Plateau.

It’ll move through relatively quickly - things ramp up during the morning, with the peak gusts mid-day, and ramping down late-afternoon / early evening.

The rain is on a bit of a different schedule! Steady rain has already picked up around western Washington (sorry to all the trick-or-treaters), and will continue overnight. However, it looks to scoot out by mid-day tomorrow, leaving only showers and a potential convergence zone for the afternoon - could even see some sunbreaks during the window of strongest winds!

I’ll post updates with more details tonight and tomorrow!

10/31/2025

Another weekend, another wet and windy storm on its way…and I won’t bury the lede: trick-or-treating time tomorrow is going to be wet.

Rainy day tomorrow (Friday), in two waves - one batch of rain through the morning, then a brief break mid-day, before the next batch arrives by late afternoon. Makes for a dreary Halloween evening, unfortunately. There is a chance for heavier showers into the evening hours too. Rain lasts through most of the day Saturday - we could get as much as 1.5 inches by Saturday evening! With temps in the mid- to upper-50s, the air may feel a tad heavy too.

Another wind event on its way for Saturday, on the back-side of this system. On one hand, it looks similar to last weekend’s event: winds from the south, with peak gusts near 40mph. Couple differences from last weekend though: this looks to be during the day Saturday, roughly between 8am to 8pm…and last weekend’s winds got rid of a bunch of leaves and weak branches. While impacts like fallen branches and power outages are definitely possible, at least the foliage has been thinned out a tad!

Sunday is relatively calm…cooler and showery. Good day to sleep in an extra hour, with daylight saving time ending! 😉 More storms roll through into next week…it will be November, after all!

10/28/2025

What a wild, windy, wet weekend - the yard waste trucks sure will be full this week!

A brief system brushes the area tomorrow (Tuesday) and tomorrow night. Showers throughout the day - some might be heavier, especially late evening and overnight into Wednesday. Might be a tad breezy during the day tomorrow too, though not as strong as Saturday…and they’ll come from the east / southeast, down from the pass along the I-90 corridor.

We’ll get a break in the action Wednesday and Thursday, before the next system arrives on Friday. At this point, it’s looking like prime trick-or-treating time could be a tad wet - but the rain might hold off until overnight into Saturday. We’ll take another look as it gets closer!

Also - apologies in advance if I scare you (👻) - an early reminder that Saturday is November 1st (😱), and Sunday is the end of daylight saving time (😴). Thanksgiving is exactly one month away (🦃), and less than two months until Christmas (🎄).

10/25/2025

Saturday morning update: breezy winds overnight and this morning, and rain moving thru the area! Expect several rounds of rain throughout the day as the system moves into the area.

The timing of the Wind Advisory has shifted a bit later, taking effect at 1pm this afternoon until 5am tomorrow morning. Still expecting similar impacts - strongest gusts potentially around 40 mph. It’ll be breezy throughout the day, with the highest potential for strongest winds in the late evening hours.

10/25/2025

⚠️💨 A Wind Advisory is in effect on Saturday from 9am to midnight 🍃⚠️

The steady rain today (Friday) will come to an end tonight, as one weather system exits and the next one moves in right on its heels. A few dry hours in store, before rain returns tomorrow (Saturday). However, the bigger difference in tomorrow’s system will be the wind.

The National Weather Service is calling for 10-20 mph winds with gusts up to 35 to 40 mph at times. They’ll generally come from the south and southwest. The peak of the winds look to be between mid-afternoon and evening.

Later on in the season, this might not get the “Wind Advisory” status - but again, since there’s still a good amount of leaves hanging on to trees (I still have two trees that haven’t dropped any leaves yet!), this could be more impactful than it would be later on in the year…downed branches, scattered power outages, that kind of thing.

With all this rain though, even without the wind, storm drains can clog up and cause localized flooding on streets - help clear them out if you can!

10/23/2025

The first storm-train of the season rolls along! After a weak system brought a quick shot of rain to the area today, a couple more systems late this week and through the weekend are on their way.

Tomorrow (Thursday) should start off fairly calm - maybe a few showers, especially in the afternoon. Rain and breezy winds will pick up overnight into the early morning hours of Friday, and look to stick around through much of the day. A half-inch of rain by Friday night looks quite likely, if not more. Winds don’t look too strong, with peak gusts only in the 30mph range - but again, these early-season storms can be more impactful with lower wind speeds, because of all the leaves still on the trees. Clogged storm drains are a good bet, broken branches are quite possible, and isolated power outages aren’t out of the question either.

The next system brings more wet and breezy conditions for the weekend. We’ll have a better idea on timing and impacts in the next day or so - but we do know it will be on the chillier side, with afternoon temps struggling to make it to the low-50s!

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