myiW Current Conditions and Forecasts Community Forums Buy and Sell Services
 
Hi guest · myAccount · Log in
 SearchSearch   ProfileProfile   Log in to check your private messagesLog in to check your private messages   RegisterRegister 
Strong winds rip from Gorge to Baja

 
Post new topic   Reply to topic    iWindsurf Community Forum Index -> Northwest USA & Canada
View previous topic :: View next topic  
Author Message
windfind



Joined: 18 Mar 1997
Posts: 1554

PostPosted: Tue Apr 09, 2019 9:12 am    Post subject: Strong winds rip from Gorge to Baja Reply with quote

Hi Gang,

Even last week it was clear that today, Tuesday, April 9, would be windy in the Gorge even if the strongest winds would be on the California coast.

One key to forecasting such wind in advance is to look for patterns of convergence and/or divergence of the winds way aloft.

The simple animation below shows you the sort of convergence happening way aloft today that is jazzing up our surface wind.

In the convergence zone, air molecules are being crammed into a smaller air so the air is denser and heavier so it moves towards the surface. This enhances the North Pacific High and indirectly the NW wind.

Now, look at the Divergence zone in the imagery. Who can figure out what that divergence will do to the low pressure in the Columbia and Great Basin that is supporting our strong wind?

For details here is a blog about convergence and divergence:

http://blog.weatherflow.com/west-coast-wind-blog-how-winds-aloft-impact-the-strength-of-the-north-pacific-high/

Mike Godsey
iwindsurf.com/ikitesurf.com
Weatheflow.com



Convergence&SurfaceNPH.gif
 Description:
 Filesize:  1.31 MB
 Viewed:  13221 Time(s)

Convergence&SurfaceNPH.gif


Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    iWindsurf Community Forum Index -> Northwest USA & Canada All times are GMT - 5 Hours
Page 1 of 1

 
Jump to:  
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

myiW | Weather | Community | Membership | Support | Log in
like us on facebook
© Copyright 1999-2007 WeatherFlow, Inc Contact Us Ad Marketplace

Powered by phpBB © 2001, 2005 phpBB Group