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Wind Meter for outdoor Events
Old 23rd May 2020
  #1
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Wind Meter for outdoor Events

Hey all,

My organization is getting things put together for an outdoor series of events. We do have some concerns as far as wind is concerned for our flown PA as well as a projection screen we will be utilizing.

Does anyone have any recommendations for good wind meters to look at so that we can make sure nothing gets swinging too hard?

Thanks.
Old 24th May 2020
  #2
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Pro Sound Guy's Avatar
 

Windy. app /Android
Wind Compass/ Iphone

If you have network and a laptop wind speed is easy
Lots of wind speed maps online
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Old 24th May 2020
  #3
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I'm certainly not expert on suggesting what aneometer would be well-suited for your use, though I do know that there are a great many available that would not be too hard to use (many with wireless connections between the display and the sensor unit).

It does strike me that perhaps you're looking at the wrong side of things, that it would probably be far better to keep up with forecasts as to what the wind will be doing and proactively take steps to protect people and equipment before the wind gets to dangerous levels, rather than observing it and taking action after the fact. An aneometer can, of course, be a part of this prediction and monitoring, but used alone it seems to me rather less than helpful.
Old 25th May 2020
  #4
Lots to chose from https://www.amazon.com/s?k=wind+spee...b_sb_ss_i_3_10

There is a phone app called "My Radar" that gives a lot of information about weather. More info here https://play.google.com/store/apps/d...radar&hl=en_US

Best of luck!
Old 25th May 2020
  #5
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JayTee4303's Avatar
Personally, I like GR Level 2 Analyst software for this purpose.

While you CAN get radar data on distant windfields (plus hail, lightning, and tornado-genesis), and therefore ADVANCE warning, you have to remember the half degree beam tilt angle on even the lowest pass of a WSR-88D volumetric scan.

This means you are looking up in the air at even modest distance away from the radar, and what happens thousands of feet up rarely translates to what happens at ground level.

This software also taps the storm spotting network, which gives you ground truth to go with the radar dataset. Pretty much whenever a storm generates even bare minimum severe level conditions, you get a string of spotter, law enforcement, and public reports on what has happened, in near real time.

It's up to you to familiarize yoursrlf with local ordinances and decide when and whether to send crew up to bring down flown rigs in advance of a storm.

My city actually spells out lightning requirements, basically faders down, power off until 20 minutes after the last lightning strike within 30 miles.

Here's a couple links to help out:

https://www.spc.noaa.gov/products/

https://www.iweathernet.com/lightning

http://grlevelx.com
Old 25th May 2020
  #6
There is also this site where you can look at winds across the country to see what is coming you way https://www.ventusky.com/?p=41.3;-82.2;5&l=radar

We did an outside concert on a horse racing track in Western Ohio. The whole day was perfect. Our NOAA weather radio said a few showers later that night (after the concert). We got 40 mile an hour winds and about a inch of rain in an hour just as the concert started. The track became 6" of mud. We covered our audio gear when it started raining and got everyone off stage just as the storm hit. I don't know what went wrong at NOAA but... We spent a lot of time getting mud off our snakes and I went to the motel soaked to the skin. Not a fun experience.

Last edited by Thomas W. Bethe; 27th May 2020 at 12:51 PM.. Reason: Spelling
Old 25th May 2020
  #7
Outside hangs of 8 or more either side typically have a weather clause in the festival contract but street fairs with multiple stages, with 4 over two and such, need some kind of pre-approved rule of thumb.

Here in the swamp, rain showers which cause standing water on the raised stage or forked lightning closer than a mile (one thousand, two thousand, etc) results in a power pull. Lower the Genies, bag the tops, wrap the subs and console, flip the four-plex boxes, wrap the kit and piano, then wait it out.

After 30 mins itโ€™s either passed or the promoters are calling it off until tomorrow. Spitting & drizzle is tolerated but anything heavier is the stage managerโ€™s safety call. I agree that measuring dynamic wind conditions is a bit late for decision making. Calculating sail areas and centers of force is possible but not on gig day, I humbly suggest.
WalterT
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