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Definition of a windy day?

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dandaka
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Definition of a windy day?

Postby dandaka » Thu Aug 06, 2015 4:07 pm

Hi, everyone!

Lately I'm thinking about a definition of a windy day. Like, if an average kiter wants to know wind statistics for a special spot, what metric is practical and useful?

% of windy days sound good, but what day can be considered windy? I'm thinking about day, which has at least 1 hour of wind with average speed of 12+ knots. Sounds like a simple and effective metric.

Big guy can take 14m and have a short but great session, small girl will also have fun. Something less (like 10 knots) is not practical for majority of riders.

What do you think?

I am not talking about "personal metrics" right now, because I don't kite anything less than 20 knots, don't like and don't have big sizes and don't like flat waters. I am looking for a universal definition of a windy day.

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southflorida
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Re: Definition of a windy day?

Postby southflorida » Thu Aug 06, 2015 4:31 pm

As a point of reference, in the US we have NOAA that gives forecasts, and they define these words with specific wind speeds:

Gale
An extratropical low or an area of sustained surface winds of 34 (39 mph) to 47 knots (54 mph).

Windy
20 to 30 mph winds.

Breezy
15 to 25 mph winds

Don't know if these are universal, but when I read a NOAA marine forecast and it has the word "windy" in it I get happy and figure out how to drop everything to go kite :jump:

I'll drive 100 miles for full day of "breezy".

http://w1.weather.gov/glossary/index.php?word=windy

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dandaka
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Re: Definition of a windy day?

Postby dandaka » Thu Aug 06, 2015 4:35 pm

southflorida, that is a cool reference, thank you!

If I change definition from "windy" to "kiteable", will it make more sense? What is your view on universal definition of a kiteable day?

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Re: Definition of a windy day?

Postby edt » Thu Aug 06, 2015 4:50 pm

beaufort scale 5, 6, 7 is windy, 15 knots up to 33 knots, less is light wind, more is megalooping wind

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dandaka
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Re: Definition of a windy day?

Postby dandaka » Thu Aug 06, 2015 5:10 pm

edt, your own preference or general public?

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edt
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Re: Definition of a windy day?

Postby edt » Thu Aug 06, 2015 6:19 pm

dandaka wrote:edt, your own preference or general public?
there is no general definition of windy

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Re: Definition of a windy day?

Postby windybrit » Thu Aug 06, 2015 8:50 pm

Any day when I can get to the beach and kite (10-30 kts) is windy, and thus is a good day.

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Re: Definition of a windy day?

Postby Bill » Fri Aug 07, 2015 1:00 pm

Definition of a windy day? My sisters wedding day!!!! :cry:

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Re: Definition of a windy day?

Postby joriws » Fri Aug 07, 2015 1:13 pm

International marine weather definitions

14–16 m/s near gale
17–20 m/s gale
21–24 m/s severe gale
25–28 m/s storm
29-32 m/s violent storm
over 32 m/s hurricane

or Noaa with knots and mph
http://www.nws.noaa.gov/om/marine/cwd.htm

GALE WARNING: A warning of sustained surface winds, or frequent gusts, in the range of 34 knots (39 mph) to 47 knots (54 mph) inclusive, either predicted or occurring, and not directly associated with a tropical cyclone.

STORM WARNING: A warning of sustained surface winds, or frequent gusts, in the range of 48 knots (55 mph) to 63 knots (73 mph) inclusive, either predicted or occurring, and not directly associated with a tropical cyclone.

TROPICAL STORM WARNING: An announcement that tropical storm conditions (sustained winds of 39 to 73 mph) are expected somewhere within the specified coastal area within 36 hours.

HURRICANE FORCE WIND WARNING: A warning for sustained winds, or frequent gusts, of 64 knots (74 mph) or greater, either predicted or occurring, and not directly associated with a tropical cyclone.

HURRICANE WARNING: An announcement that hurricane conditions (sustained winds of 74 mph or higher) are expected somewhere within the specified coastal area. Because hurricane preparedness activities become difficult once winds reach tropical storm force, the hurricane warning is issued 36 hours in advance of the anticipated onset of tropical-storm-force winds.

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Re: Definition of a windy day?

Postby nothing2seehere » Fri Aug 07, 2015 1:42 pm

The kite holiday companies tend to use the statistic: '% of days Force 4 and above'.

One might assume force 4 (12 - 16 knots?) is the low point?


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