I haven't been keeping close watch on the troposphere in the Pacific, but, this looks wicked to me.
250-850 hPa layer (click here for animation)
hPa is hectopascal. It is roughly 1 millibar of pressure. This particular satellite measures wind speed in knots/per second. Don't get hung up on the hectopascal thing. That is where these winds are taking place. 250-850 hectopascal of pressure occurs about one quarter to less than a mile up in the troposphere.
These upper winds are sailing at over 100 knots per second. That means the upper winds are traveling at over 31 miles per second.
Is this translating to high winds at ground level? California has been knocked around for the last couple of weeks.
January 17, 2017
UNISYS Water Vapor satellite of the north and west hemisphere (click here for 12 horu loop - thank you)
173 MPH wind gusts? It looks like there is more to come. When is the acceleration of the upper troposphere going to stop?
250 to 850 hPa at these longitude and latitudes should be evaluated for excluding air traffic. I haven't heard of any falling out of the sky, but, I haven't looked either.
July 10, 2017
By Patrick May
As long as you’ve not been (a) stuck (click here) in a mudslide-jammed morning commute or (b) had a tree branch bite off part of your roof or (c) had torrential rains wash away half of your backyard, this week’s storms have served up an entertaining, continual and wide range of jaw-dropping weather moments.
OK, so this pales by comparison with the domestic record-setting 231 miles-per-hour gust atop Mt. Washington in New Hampshire on April 12, 1934, or the world-record-breaking 253-mph blast that hit Barrow Island, Australia Oct. 4, 1996. But 173 is still a remarkable velocity to behold. And as Null points out, it’s tough to compete with Mt. Washington when it comes to whacked-out weather: “Mt. Washington is a sort of Mecca for meteorologists,” he says. “There’s a weather observatory there where they get these high winds and wind chills of minus 100 all the time.”
This is NOT Barrow Island or Mt. Washington where unusual weather is the norm. This is mid-latitudes California. I'll look toward Valentine's Day as the day the winds stopped in California. I am keeping my fingers crossed.
Pacific Northwest and Canada
January 17, 2017
Accuweather radar (click here for loop - thank you)
Counties, cities and people need to be made aware of the extended period of time this will continue. They have to prepare for flooding and wind. People have to know what they are up against.
In sharp contrast, the north Atlantic and Europe are not seeing this disturbance at the same altitudes.
Mean sea level pressure, (click here) wind speed at 850 hPa and geopotential 500 hPa, temperature at 850 hPa.
Tuesday, 17 January 2017
Not even close to the turbulence over the east Pacific.