September 2023 Weather in the PNW

[MossMan]

.62” on the day. 
Of course 20 seconds after shooting this quick clip of racing clouds while putting the generator away I hear a large crack followed by a large tree of some sort falling either on my property or my neighbors. So close to having it on tape. The sound anyway. 
Oh…And it’s still coming. 

[Ken in Wood Village]

I wanted to post this for everyone. Looks like that secondary low is going to pack a punch for the PNW. Even though the winds are not super strong, with the full foliage on the trees, there is a strong possibility of power outages. The next storm will be interesting to see what happens

[Meatyorologist]

Some intense convection embedded within these rainbands as colder air advects aloft from the west, increasing CAPE consequentially. Wouldn't be surprised to get an embedded lightning strike like down in PDX.

[Gradient Keeper]

It has only been Fall for a few days and it's already active with an atmospheric river, t-storms in the Vancouver metro area up to Columbia City, Woodland, Ridgefield La Center, and now the potential for an early season wind event/storm for the Northern OR and WA Coast, and maybe Puget Sound too. Awesome.

For PDX Last September 25th we were very warm and sunny with 88 degrees. From the 24-30th we ended the month first with hot weather peaking at 90 on the 26th, and then cooled down to the low 70s with about a quarter inch of rain .26" to be exact. Pretty soon we'll be tracking arctic fronts up in the Yukon. Yep. A snowy Nino! C'MON!!!!

00z GFS in 1 hour 1 minute

[TacomaWx]

7 minutes ago, Meatyorologist said:

Some intense convection embedded within these rainbands as colder air advects aloft from the west, increasing CAPE consequentially. Wouldn't be surprised to get an embedded lightning strike like down in PDX.

Absolutely pouring here! Under the dark red the past few minutes 

[MWG]

Raining since 11am power went out for like 5 minutes just a couple minutes ago.Temps for the 55/66 and currently 55F wonder if our low  for the day will change lol

[Doinko]

18 minutes ago, Meatyorologist said:

Some intense convection embedded within these rainbands as colder air advects aloft from the west, increasing CAPE consequentially. Wouldn't be surprised to get an embedded lightning strike like down in PDX.

There were a few strikes around Clark County with that intense downpour s not ago

[T-Town]

Up to 1.14 on the day after some very heavy showers. 

[TacomaWx]

4 minutes ago, T-Town said:

Up to 1.14 on the day after some very heavy showers. 

0.98” here now. Close to 1/2” fell in ~25 minutes. This should be our biggest rainfall since June 9th, 2022. (1.44”) 

[Slushy Inch]

Lightning!

[Ken in Wood Village]

I think it's going to be a very active night 

[Slushy Inch]

Mariners losing again but we got lightning!

[Gradient Keeper]

Radar Update

9/25/23 8:27 PM

Nice T-Storm in the Bellevue, Redmond area.

 

[jcmcgaffey]

1 minute ago, Gradient Keeper said:

Radar Update

9/25/23 8:27 PM

Nice T-Storm in the Bellevue, Redmond area.

 

That just passed along the SEA rain gauge so curious what it gets. A lot of stations right at the edge have 1.1-1.3” of rain but just south of the airport around .7-.8”

[Gradient Keeper]

Wow 68.5 dBz!

[TT-SEA]

3 minutes ago, jcmcgaffey said:

That just passed along the SEA rain gauge so curious what it gets. A lot of stations right at the edge have 1.1-1.3” of rain but just south of the airport around .7-.8”

I have been watching that too.   Thunder reported but only .03 in the last 30 minutes.  Could be that the heaviest rain passed just to the west.

[Cold Snap]

Pretty nice cell over Bellevue right now.

[jcmcgaffey]

 

2 minutes ago, TT-SEA said:

I have been watching that too.   Thunder reported but only .03 in the last 30 minutes.  Could be that the heaviest rain passed just to the west.

There’s no way. The storm passed over the airport but the heaviest was right over the northern part of the airport. Even if the gauge was on the south end of the airport it would have read at least .05 or more. 

[the_convergence_zone]

Every one of these convective showers seems to be finding me. 1.84” storm total! Best storm in a long time. 

[jcmcgaffey]

Looking back at it the storm was centered over SeaTac. They had to have received well over a .10”. 

[Slushy Inch]

7 minutes ago, Cold Snap said:

Pretty nice cell over Bellevue right now.

More lightning than I was expecting. I could see the bright flashes and hear the thunder.

[TT-SEA]

3 minutes ago, jcmcgaffey said:

Looking back at it the storm was centered over SeaTac. They had to have received well over a .10”. 

Just .05 since 8 p.m.

https://www.weather.gov/wrh/timeseries?site=KSEA&hours=72

[MikeInEverett]

23 minutes ago, Slushy Inch said:

Mariners losing again but we got lightning!

Just an absolutely deflating game tonight. I didn’t think it could get much worse after the weekend. At least I have the calming sound of rain to listen to!

[Front Ranger]

1 hour ago, MossMan said:

This much! Pic was taken after the switch over to rain and it was starting to compact that morning. 

Looks like '76.

[Cold Snap]

Cell is now over me and it’s dumping rain!

[Front Ranger]

4 hours ago, SilverFallsAndrew said:

We could do a lot worse here than 65-66 or 72-73... 

Yeah. Definitely wouldn't write off this winter, especially if you buy into persistence.

[the_convergence_zone]

1 minute ago, MillCreekMike said:

Just an absolutely deflating game tonight. I didn’t think it could get much worse after the weekend. At least I have the calming sound of rain to listen to!

Freaking Verlander. Ugh. This team just doesn’t have it. 

[Cold Snap]

Up to 0.98” for the day now.

[TT-SEA]

1 minute ago, the_convergence_zone said:

Freaking Verlander. Ugh. This team just doesn’t have it. 

They had it in August.   But didn't have mental fight to handle the inevitable downturn.   They have seemingly given up.    

[jcmcgaffey]

4 minutes ago, TT-SEA said:

Just .05 since 8 p.m.

https://www.weather.gov/wrh/timeseries?site=KSEA&hours=72

If the station doesn’t update then it has to be an inaccurate reading. I have always felt the SEA station doesn’t accurately read rainfall but that’s just my novice opinion. 

[TT-SEA]

1 minute ago, jcmcgaffey said:

If the station doesn’t update then it has to be an inaccurate reading. I have always felt the SEA station doesn’t accurately read rainfall but that’s just my novice opinion. 

Up to .09 in the last hour now... cell is still right over airport.  

[TT-SEA]

And now updated to .14 in the last hour.    That makes more sense!  

.35 since 5 p.m.

[Phil]

37 minutes ago, Gradient Keeper said:

Wow 68.5 dBz!

Def some hail in that one.

[Phil]

Another IOD spike, similar to 2019.

[Phil]

QBO/shear stress most similar to 1986/87 and 1997/98, followed by 1991/92 and 2002/03.

And exact opposite of 1982/83 and 2018/19.

[Phil]

But we’re definitely ahead of 1997/98’s pace on shear descent. For all intents and purposes the lower tropical strat projected as +QBO (warm/shallow TUT) most of that winter.

[Slushy Inch]

12 minutes ago, Phil said:

Another IOD spike, similar to 2019.

But was does it mean?

[HuskyMaestro]

Calm night with clouds clearing out at 57F. Got tickets for the Kraken game next Monday with dad so I can't wait! First game at CPA too, about time

[Ken in Wood Village]

Looks like there could be rotation in this cell. It's getting really late. I need to go to bed. Hopefully I won't miss anything when I'm asleep...lol

[jcmcgaffey]

20 minutes ago, HuskyMaestro said:

Calm night with clouds clearing out at 57F. Got tickets for the Kraken game next Monday with dad so I can't wait! First game at CPA too, about time

Don’t miss the pregame intro. Best intro of all Seattle sports.