View previous topic :: View next topic |
Author |
Message |
jgda
Joined: 19 Jul 1999 Posts: 134
|
Posted: Fri Apr 23, 2021 9:09 am Post subject: East winds increasing? |
|
|
I saw this in the Oregonian. I assume he might be referring to the fall rather than the summer, but maybe not?
“But Saltenberger, a meteorologist for nearly 40 years, said unseasonably high temperatures and occasional fires don’t necessarily foretell a particularly bad wildfire season. Steadily rising temperatures, less precipitation and stronger winds across the Northwest are cause for concern, however.
“I detect an ominous trend in the number and intensity of the strong easterly wind events that seem to be moving northwards from California into Oregon and Washington and hitting us at times when fire danger is high,” said Saltenberger, who reviews fluctuations in fire danger and weather and anticipates possible spates of large and costly wildfires.“
|
|
Back to top |
|
|
surfersteve
Joined: 24 Apr 2007 Posts: 203
|
Posted: Fri Apr 23, 2021 9:55 pm Post subject: |
|
|
I agree. In my experience we rarely see easterlies of any significant prior to maybe Labor Day weekend. They seem to be strong only when we get a pretty cool, cloudless night which is uncommon before Labor Day.
|
|
Back to top |
|
|
windfind
Joined: 18 Mar 1997 Posts: 1907
|
Posted: Sat Apr 24, 2021 1:20 pm Post subject: |
|
|
Hi Gang,
Our typical fall surface easterly winds are concentrated in the Stevenson to Rooster area and a few passes and are associated with a strong pressure gradient in that area.
The recent big wind was caused by an unusual upper level set up that is why:
1. The entire Gorge saw strong E winds except in places in wind shadows.
2. There were very E. strong winds at the top of Mt. Hood.
3. The pressure gradient was modest in the Stevenson to Rooster area.
So that was more of a freak event than a climate shift. While the increasing easterly winds in the Fall is likely the product of a slow climate shift. The North Pacific High is increasingly likely to push a ridge into California and the Pacific Northwest. (think of the North Pacific High as a mountain of clockwise spiraling wind and a ridge as an extension of that mountain pushing inland. That ridge puts high pressure to our east favoring easterly winds.
This same thing is happening way more commonly in the San Francisco Bay Area and Southern California even in the summer in the last decade or so.
You can see the beginning of this process in the image below as the North Pacific High off the west coast pushes a ridge into the Pacific Northwest next week.
Mike Godsey
weatherflow.com
Blog: https://blog.weatherflow.com/category/cali-baja/san-fran/
windalert.com
iwindsurf.com
ikitesurf.com
sailflow.com
fishweather.com
USAfishing.com
Photography: https://windnotes.smugmug.com
Description: |
|
Filesize: |
940.6 KB |
Viewed: |
16867 Time(s) |
|
|
|
Back to top |
|
|
jgda
Joined: 19 Jul 1999 Posts: 134
|
Posted: Sun May 09, 2021 2:52 pm Post subject: |
|
|
Thanks Mike!
|
|
Back to top |
|
|
biffmalibu
Joined: 30 May 2008 Posts: 556
|
Posted: Mon May 10, 2021 9:45 am Post subject: Polar vortex dislodgement? |
|
|
I admit I did not read the Oregonian article (there was no link to it).
Is Saltenburger perhaps referring instead to the unusual and very strong eastlerly winds resulting from Polar Vortex dislodgement (due to Global Warming)? I don't believe he is Gorge-centric. Rather, he may be Willamette Valley-centric.
|
|
Back to top |
|
|
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum
|
|
|