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August 2017 PNW Discussion Thread


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Offshore flow is pretty weak. They've probably got about an hour to see a spike from the drying but I'm still liking 103.

 

You might be right. 

 

8/6/1972 looks like a blueprint for a late jump without surfacing downslope wind. Recovered from 93 to 104 after 2:00pm as the wind went around from W to N, dp's dropped into the upper 40's. Looks like what you're talking about. 

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Air quality went to crap outside here. You can smell the smoke really well now.

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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Looks like the flow has shifted slightly onshore again by looking at the Whitewater fire smoke plume.

Cold Season 2023/24:

Total snowfall: 26"

Highest daily snowfall: 5"

Deepest snow depth: 12"

Coldest daily high: -20ºF

Coldest daily low: -42ºF

Number of subzero days: 5

Personal Weather Station on Wunderground: 

https://www.wunderground.com/personal-weather-station/dashboard?ID=KMTBOZEM152#history

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August to remember?? GFS may actually not be completely crazy with the ECMWF trending this direction now as well.

 

Screen Shot 2017-08-02 at 5.11.56 PM.png

 

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Cold Season 2023/24:

Total snowfall: 26"

Highest daily snowfall: 5"

Deepest snow depth: 12"

Coldest daily high: -20ºF

Coldest daily low: -42ºF

Number of subzero days: 5

Personal Weather Station on Wunderground: 

https://www.wunderground.com/personal-weather-station/dashboard?ID=KMTBOZEM152#history

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Air quality index in the Unhealthy category right now for Seattle-Bellevue-Kent region. 157+

https://airnow.gov/index.cfm?action=airnow.local_state&stateid=49&mapcenter=1&tabs=0

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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Looks like the flow has shifted slightly onshore again by looking at the Whitewater fire smoke plume.

Definitely. I was just watching the plume from Mt. Bachelor and it's moving eastward.

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Bend, OR

Elevation: 3550'

 

Snow History:

Nov: 1"

Dec: .5"

Jan: 1.9"

Feb: 12.7"

Mar: 1.0"

Total: 17.1"

 

2016/2017: 70"

2015/2016: 34"

Average: ~25"

 

2017/2018 Winter Temps

Lowest Min: 1F on 2/23

Lowest Max: 23F on 12/24, 2/22

Lows <32: 87

Highs <32: 13

 

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Air quality index in the Unhealthy category right now for Seattle-Bellevue-Kent region. 157+

https://airnow.gov/index.cfm?action=airnow.local_state&stateid=49&mapcenter=1&tabs=0

 

AQI is 77 out here... a little better.  

**REPORTED CONDITIONS AND ANOMALIES ARE NOT MEANT TO IMPLY ANYTHING ON A REGIONAL LEVEL UNLESS SPECIFICALLY STATED**

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Air quality index in the Unhealthy category right now for Seattle-Bellevue-Kent region. 157+

https://airnow.gov/index.cfm?action=airnow.local_state&stateid=49&mapcenter=1&tabs=0

Eugene is at 177, although it doesn't really seem that bad at my location.

 

https://airnow.gov/index.cfm?action=airnow.local_city&mapcenter=0&cityid=157

 

The smoke seems to have moderated the temps down here.

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AQI is 77 out here... a little better.  

 

Yeah for some reason it is worse this way.

 

Tacoma at 168 right now on the east side and Port Angeles at 170 now.

Looks like the peak temp hit 88 or 89 at home for today.

Mercer Island, 350 ft

2021-2022: 11.6", 02/21

2020-2021: 15.6"

2019-2020: ~10"

2018-2019 winter snowfall total: 29.5"

2017-2018: 9.0", 2016-2017: 14.0"

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103 is the high at PDX, barring a late miracle. Underwhelming, but still the highest August reading since 1981. TTD and HIO both hit 105. 

 

107 at SLE matches 7/28/2009 for highest reading since August 1981.

 

112 at MFR is 3rd highest reading all time, behind 115 on 7/20/1946 and 114 on 8/8/1981.

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103 is the high at PDX, barring a late miracle. Underwhelming, but still the highest August reading since 1981. TTD and HIO both hit 105. 

 

107 at SLE matches 7/28/2009 for highest reading since August 1981.

 

112 at MFR is 3rd highest reading all time, behind 115 on 7/20/1946 and 114 on 8/8/1981.

 

I guess, but with lowering visibility in the afternoon due to smoke (lower than yesterday afternoon), that was probably a factor. And tomorrow was always expected to be the hottest day...105+ is still possible, even with the smoke.

A forum for the end of the world.

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I guess, but with lowering visibility in the afternoon due to smoke (lower than yesterday afternoon), that was probably a factor. And tomorrow was always expected to be the hottest day...105+ is still possible, even with the smoke.

 

I wonder how much of an effect the smoke had. I was driving around SE Portland earlier this afternoon, and it was definitely smoky. I wouldn't be surprised if we lost 1-2F today vs. a clear sky situation. Verified 24.8C over SLE at 00Z this morning (higher than @ 12Z on 7/28/2009)...TTD had the perfect situation with light east winds but "only" managed 105 with 4 mile visibility. 

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I wonder how much of an effect the smoke had. I was driving around SE Portland earlier this afternoon, and it was definitely smoky. I wouldn't be surprised if we lost 1-2F today vs. a clear sky situation. Verified 24.8C over SLE at 00Z this morning (higher than @ 12Z on 7/28/2009)...TTD had the perfect situation with light east winds but "only" managed 105 with 4 mile visibility. 

 

Mark Nelsen:

 

"Believe it or not the fire smoke has probably kept us a degree or two COOLER than we could have been.  At 2pm I checked two different solar radiation sensors (Forest Grove & Corbett) and found they were seeing 5-8% less solar energy today compared to yesterday."

 

So it almost certainly shaved a degree or two off of the high.

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The smoke is a dream scenario for Jesse. It diminishes solar radiation but doesn't inhibit radiational cooling.

 

Asthmatics can suck it.

I thought the smoke wasn't affecting anything today? ;)

 

And honestly I am not a big fan, being asthmatic myself.

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I thought the smoke wasn't doing anything? ;)

 

And honestly I am not a big fan, being asthmatic myself.

The lack of drying at PDX/KVUO seemed far more of a factor than the smoke. Might it have been the difference between 105 and 106 at Troutdale? Maybe, but I doubt it. At that point you're arguing how many angels you can fit on the head of a pin.

My preferences can beat up your preferences’ dad.

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Mark Nelsen:

 

"Believe it or not the fire smoke has probably kept us a degree or two COOLER than we could have been.  At 2pm I checked two different solar radiation sensors (Forest Grove & Corbett) and found they were seeing 5-8% less solar energy today compared to yesterday."

 

So it almost certainly shaved a degree or two off of the high.

 

Nice. I hadn't even seen Mark's post. 

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The smoke is a dream scenario for Jesse. It diminishes solar radiation but doesn't inhibit radiational cooling.

 

Asthmatics can suck it.

Smoke does inhibit radiational cooling.

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The lack of drying at PDX/KVUO seemed far more of a factor than the smoke. Might it have been the difference between 105 and 106 at Troutdale? Maybe, but I doubt it. At that point you're arguing how many angels you can fit on the head of a pin.

So in this case...Nelsen knows nothing.

A forum for the end of the world.

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The lack of drying at PDX/KVUO seemed far more of a factor than the smoke. Might it have been the difference between 105 and 106 at Troutdale? Maybe, but I doubt it. At that point you're arguing how many angels you can fit on the head of a pin.

58. Next question.

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He's also probably contributing a bit of smoke himself while trying to soothe heat-frazzled nerves.

The majority of the smoke probably came blasting out of Jesse's ears after seeing the 18z GFS.

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