Please read the posts in the Announcements section about the current status of Cumulus development now that I have retired

Please read this post before posting

Latest Cumulus release v1.9.4 (build 1099) - Nov 28 2014
Latest Cumulus MX release - v3.0.0 build 3043 Jan 20 2017. See this post for download

what is Considered Windy?

Talk about the weather
WindyWindy
Posts: 13
Joined: Sun Dec 04, 2016 11:49 am
Weather Station: Davis Vantage Vue
Operating System: Windows 8

what is Considered Windy?

Postby WindyWindy » Tue Apr 04, 2017 9:00 pm

i had wind speed 44kph wind speed at Clifton is that windy and my aunty told me its very windy in Clifton
but how can i make a wind for 2.5 seconds for 10mins average i saw Bureau of Meteorology use 2-3 seconds wind gusts and 10mins wind speed average but fine offset use 1min wind gusts whats the differents?

User avatar
PaulMy
Posts: 1561
Joined: Sun Sep 28, 2008 11:54 pm
Weather Station: Davis Vantage Pro 2 w/Envoy USB
Operating System: Windows-8
Location: Komoka, ON Canada
Contact:

Re: what is Considered Windy?

Postby PaulMy » Tue Apr 04, 2017 11:57 pm

This http://wiki.sandaysoft.com/a/Wind_measurement may be helpful with wind speed and Cumulus.

Enjoy,
Paul

WindyWindy
Posts: 13
Joined: Sun Dec 04, 2016 11:49 am
Weather Station: Davis Vantage Vue
Operating System: Windows 8

Re: what is Considered Windy?

Postby WindyWindy » Wed Apr 05, 2017 2:14 am

PaulMy wrote:This http://wiki.sandaysoft.com/a/Wind_measurement may be helpful with wind speed and Cumulus.

Enjoy,
Paul

i dont understand what Wind speed is Windy?

AllyCat
Posts: 1004
Joined: Sat Feb 26, 2011 1:58 pm
Weather Station: Fine Offset 1080/1 & 3080
Operating System: Windows XP SP3
Location: SE London

Re: what is Considered Windy?

Postby AllyCat » Wed Apr 05, 2017 8:44 am

Hi,

WindyWindy wrote: fine offset use 1min wind gusts whats the differents?

No, the Fine Offset (anemometer) transmits two values, the "Gust" is calculated from the number of revolutions of the anemometer in two seconds and the "Average" from the number of revolutions in 48 seconds. Cumulus can then calculate the average over 10 minutes, but read the settings/options carefully because it may take the average of the gusts (which typically can be twice as high as the FO average value). But the Davis that you appear to have is completely different.

WindyWindy wrote:i dont understand what Wind speed is Windy?

And what speed does a "fast" car do? That's why Beaufort devised his scale, where the lowest speed that specifically uses the term "Wind" is "High Wind" at 50 kph, 30 mph, which most people would consider "Windy". But I suspect that many would also consider Beaufort's "Strong Breeze" to be "Windy".

Cheers, Alan.

WindyWindy
Posts: 13
Joined: Sun Dec 04, 2016 11:49 am
Weather Station: Davis Vantage Vue
Operating System: Windows 8

Re: what is Considered Windy?

Postby WindyWindy » Wed Apr 05, 2017 9:06 am

AllyCat wrote:Hi,

WindyWindy wrote: fine offset use 1min wind gusts whats the differents?

No, the Fine Offset (anemometer) transmits two values, the "Gust" is calculated from the number of revolutions of the anemometer in two seconds and the "Average" from the number of revolutions in 48 seconds. Cumulus can then calculate the average over 10 minutes, but read the settings/options carefully because it may take the average of the gusts (which typically can be twice as high as the FO average value). But the Davis that you appear to have is completely different.

WindyWindy wrote:i dont understand what Wind speed is Windy?

And what speed does a "fast" car do? That's why Beaufort devised his scale, where the lowest speed that specifically uses the term "Wind" is "High Wind" at 50 kph, 30 mph, which most people would consider "Windy". But I suspect that many would also consider Beaufort's "Strong Breeze" to be "Windy".

Cheers, Alan.


yeah 40km/hr and more is windy what about Fresh Winds?


Return to “Weather”

Who is online

Users browsing this forum: No registered users and 2 guests