September 2019 Weather Discussion for the PNW

[TigerWoodsLibido]

I think I've got it.  It was southbound on I-5 at Diamond Hill Rd. (Exit 209) near Harrisburg, taken with a zoom lens that brought in the distant hills.

 

Sorry, but it was bugging me

 

That zone of extreme north Lane County up to about Albany is one of the prime spots for Willamette Valley tornadoes. I believe quite a few have been seen around Brownsville in the past.

[Kayla]

Not quite. If anything you’d have the opposite effect on daytime highs with more water vapor in the atmosphere. Keep in mind the work that goes into latent heating and the specific heat capacity of H2O, which is dipolar.

 

Sure, I understand that you are going to have a limit on the heat capacity of H2O affecting the highs but as we head into Autumn, solar power is a losing its battle and having higher moisture content might be enough to slightly offset the decaying solar energy. Wouldn't this possibly raise low and high surface temps above historical average during the Fall and Winter months? 

 

Again, I'm referencing specifically to the effects in the PNW. 

[Dave]

Are you sure?  There's no Exit 209 on Beltline.  There's an Exit 209 on I-5 about 15 miles north in Harrisburg but the topography doesn't look like that.

You are correct. It was from I-5. The funnel was near Creswell.

[Front Ranger]

That zone of extreme north Lane County up to about Albany is one of the prime spots for Willamette Valley tornadoes. I believe quite a few have been seen around Brownsville in the past.

 

If I remember correctly, that's one of the flatter parts of the Willamette Valley?

[TT-SEA]

Stellar day here... better than I was expecting. Sunny from the start with just a few puffy clouds floating around and up to 71.

[Deweydog]

Nice day here in Olympia.

 

Everyone’s been asking me “how’s Flatiron???”

[Deweydog]

Dang you guys STILL think he was talking about the President?

Purty sure I was one of the first to make the comparison.

[ShawniganLake]

Probably overdone... but still looks wet. And really wet up there as expected. Yet somehow there is not a single rainy day for the Seattle area on this run. Most of the precip in this area comes on Thursday night and Saturday night.

 

Hmm, not bad. Enough to green up the lawns before autumn weather really arrives.

[Omegaraptor]

Nice day here in Olympia.

Everyone’s been asking me “how’s Flatiron???”

Nice day here in the west metro as well.

 

Wonder if September 11 in 1949 was a nice day... possible analog?

 

EDIT: It was 71/47 at PDX with no precipitation. Probably a pretty nice day.

[Dave]

Not to be persnickety, but I believe this is incorrect as well. Not even the foreshortening effect of the telephoto lens would put the funnel anywhere near Creswell. More like a few miles northeast of Coburg.

I meant coburg. Maybe too much internet for me today. Btw, one of the local tv mets was storm chasing and the pic was taken from his passenger.

[Jesse]

Nice day here in the west metro as well.

 

Wonder if September 11 in 1949 was a nice day... possible analog?

 

EDIT: It was 71/47 at PDX with no precipitation. Probably a pretty nice day.

Sounds inanely arctic.

[Blizzard777]

That zone of extreme north Lane County up to about Albany is one of the prime spots for Willamette Valley tornadoes. I believe quite a few have been seen around Brownsville in the past.

http://www.tornadohistoryproject.com/tornado/Oregon

[Front Ranger]

No 9/11 jokes from Dewey? 

[Phil]

Sure, I understand that you are going to have a limit on the heat capacity of H2O affecting the highs but as we head into Autumn, solar power is a losing its battle and having higher moisture content might be enough to slightly offset the decaying solar energy. Wouldn't this possibly raise low and high surface temps above historical average during the Fall and Winter months?

 

Again, I'm referencing specifically to the effects in the PNW.

The laws of thermodynamics/heat transfer don’t change from season to season or region to region.

 

To oversimplify it a bit, increasing the relative moisture content within the lower boundary layer will increase the thermal capacity of the airmass, such that it’s heats/cools more slowly given the same amount of work done on it via solar radiation. You don’t just “start out from a warmer benchmark” the next day after a warm/humid night and just warm from there at the same rate as if the air mass were unchanged. The more humid airmass will warm more slowly. Apart from the individual molecular dynamics there will (possibly) be more clouds, and more rainfall to evaporate, etc, all of which involves latent heat absorption or the reflection of solar radiation which reduces the specific heating of the surface/near surface layer.

[MossMan]

Take it!

Perfect! Now I just need to find a spare hour or two to get back to the lake and get it on the trailer...Not an easy thing finding time these days!

 

Currently cloudy and 66 degrees.

[jcmcgaffey]

Looks like the cooler wetter summer east of the mountains has hurt the apple crops:(

 

https://komonews.com/news/local/local-cider-makers-face-challenges-from-the-latest-apple-harvest

[Jesse]

Looks like the cooler wetter summer east of the mountains has hurt the apple crops:(

 

https://komonews.com/news/local/local-cider-makers-face-challenges-from-the-latest-apple-harvest

Except that’s not actually what the article says. This should all make for great pointless debate material, though:)

[Deweydog]

No 9/11 jokes from Dewey?

Not on 9/11 you sick f*ck.

[Front Ranger]

Not on 9/11 you sick f*ck.

Too timely?

[jcmcgaffey]

Except that’s not actually what the article says. This should all make for great pointless debate material, though:)

. It was a poorly written article but it indicated the cooler wetter weather caused fungal problems. They then said there were also benefits though to that weather but gave no examples.

[Jesse]

. It was a poorly written article but it indicated the cooler wetter weather caused fungal problems. They then said there were also benefits though to that weather but gave no examples.

It also said that it was only for cider apples specifically. Not the regular apples you find in the produce section, which did well with the more average weather this summer. Then they mentioned that the changes to the cider apples wasn’t going to decrease cider production, there might just be different varieties this year. They also said the fungal issues were preferable to the problems caused by heat and drought.

 

Kind of seemed like a pointless article overall.

[Blizzard777]

. It was a poorly written article but it indicated the cooler wetter weather caused fungal problems. They then said there were also benefits though to that weather but gave no examples.

My cider might taste different although just like wine I would never know the difference.

[High Desert Mat?]

It also said that it was only for cider apples specifically. Not the regular apples you find in the produce section, which did well with the more average weather this summer. Then they mentioned that the changes to the cider apples wasn’t going to decrease cider production, there might just be different varieties this year. They also said the fungal issues were preferable to the problems caused by heat and drought.

 

Kind of seemed like a pointless article overall.

Take the word apples out and you could be talking about busters girlfriend or wife, whatever he has.

[Frontal Snowsquall]

Precip maps? Tim!

 

 

Also, the Euro has a decent hurricane headed for the Bahamas in week 2.

Not again.

 

[Frontal Snowsquall]

Probably overdone... but still looks wet. And really wet up there as expected. Yet somehow there is not a single rainy day for the Seattle area on this run. Most of the precip in this area comes on Thursday night and Saturday night.

 

Good regional soaking.

[Frontal Snowsquall]

http://www.tornadohistoryproject.com/tornado/Oregon

Washington County donut hole.

[TT-SEA]

Good regional soaking.

That's what she said.

[Jesse]

Take the word apples out and you could be talking about busters girlfriend or wife, whatever he has.

I think a daughter.

[jcmcgaffey]

It also said that it was only for cider apples specifically. Not the regular apples you find in the produce section, which did well with the more average weather this summer. Then they mentioned that the changes to the cider apples wasn’t going to decrease cider production, there might just be different varieties this year. They also said the fungal issues were preferable to the problems caused by heat and drought.

 

Kind of seemed like a pointless article overall.

I see they updated the article with the rest of the info you read. Originally they only had the first paragraph when I read and I was thinking this is a terrible article but with all the info it makes it a little better.

[VancouverIslandSouth]

Eagerly awaiting an end to this drought, now that it's getting close the GFS has scaled back tomorrow's rainfall in typical fashion.

[Blizzard777]

Eagerly awaiting an end to this drought, now that it's getting close the GFS has scaled back tomorrow's rainfall in typical fashion.

Sad, still looks like a pretty storm though. Looks like the precipitation for us starts late Thursday or overnight into Friday

[TacomaWaWx]

Gfs overall just looks cool and wet at times Friday through Tuesday. Shows some warmer nice weather after a pretty solid soaking for the region if it verifies.

[VancouverIslandSouth]

Sad, still looks like a pretty storm though. Looks like the precipitation for us starts late Thursday or overnight into Friday

 

Who knows, maybe it will overperform with the warmer coastal waters. It's been happening a lot to the south of here, you'd think northern areas would get in on it at some point.

[TacomaWaWx]

Beautiful sunrise this morning out ahead of the frontal system. 54 degrees this morning. Good for the coolest morning this month, and the coolest morning since 8/26.

[El_Nina]

First clear morning in awhile.

[Omegaraptor]

51°F or so, this morning was foggy but it just cleared out. HIO bottomed at 49.

[Anti Marine Layer]

Moisture from the remnants of two typhoons could make things interesting this weekend for the PNW.

[MossMan]

Currently 58 and mostly cloudy. The sky looks a little turbulent this morning.

[TT-SEA]

Moisture from the remnants of two typhoons could make things interesting this weekend for the PNW.

 

Maybe up in SW BC.

 

Just looks like a pretty standard early fall front coming through here on Saturday night.   Saturday looks dry and the main rain band moves out on Sunday morning.

[Jesse]

A blob-defying 49 degrees here this morning.