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Weather and spray advisory

 
 
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WAND (Weather and Networked Data) is Australia's spray drift hazardous weather warning network, developed with the Grains Research and Development Corporation (GRDC) and the Cotton Research and Development Corporation (CRDC). A network of profiling inversion towers across NSW and QLD grain and cotton regions gives growers and spray operators real-time visibility of hazardous temperature inversions.

Benefits of weather and spray advisory

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Improve spray efficiency

It tells growers when they can spray, rather than when they can't. Being able to forecast inversion conditions allows growers and spray applicators to plan when to get their machinery ready to go into a field.

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A proactive approach

Spray drift onto crops, doesn’t show symptoms for 7 to 14 days which is too late to do something about. If we can detect a drift event early, then we can start applying management techniques right from the outset to minimise the impact of the drift away.

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A free tool for everyone

Free for everyone and create an account. You will be able to start accessing the data straight away and it's in real time which is a huge advantage to you managing your decisions around spraying and workload.

 
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How WAND works

WAND is a world-first network of 102 profiling inversion towers across the grain and cotton regions of New South Wales and Queensland. Each tower uses remote sensing and proprietary software to deliver real-time weather data updated every 10 minutes plus a forecast of inversion risk up to 24 hours ahead.

What is a hazardous temperature inversion? Normally, air temperature drops the higher you go. During an inversion, that pattern flips: a layer of warm air sits above cooler air near the surface, creating a stable "lid" that stops normal air movement.

For spray application, this is a serious risk. Spray particles released during an inversion can stay suspended and concentrated near the surface rather than dispersing, potentially leading to off-target contamination or exposure. Without air mixing, fine droplets can also travel long distances in an undisturbed, low-level air stream — in directions that are hard to predict and depend heavily on the surrounding landscape. That's why monitoring for hazardous inversions is essential to safe, effective spray application.

To learn more about the WAND network, watch the video.

 
 
 

Spray window improvement

Since the launch of WAND, we have accumulated over 120,000 hours of observations* and been able to determine the following:

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10.9 hrs

The average hours/day/site where inversion is present

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6.5 hrs

The average hours/day/site where hazardous inversion is present

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0.5 hrs

The average hours/day/site when a hazardous inversion is present, but a temperature inversion is not

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4 hrs

The average adjusted ‘benefit’ the WAND network is providing growers/spray applicators per day

The below graph shows the hazardous inversion graph versus temperature inversion graph for the same location at the same time demonstrating the increased spray window that the technology provides for growers.

Graph showing the difference between hazardous inversions vs temperature inversions

*Date range: December 2022 to May 2023

 
 

Our technology

WAND technology addresses this issue by providing real-time determinations of local vertical turbulence characteristics and comparing them against predetermined thresholds. This determines whether there is sufficient vertical turbulence for adequate deposition and dispersion of spray droplets in a particular location, regardless of whether temperature inversion conditions are present.

The data is recorded in our inversion towers.

See solution demonstration which highlights the coverage of our network.

 
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Our customers

“One operator could theoretically cover an additional 200 hectares per day”

 
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Complete your weather toolkit

WAND tells you when it's safe to spray. GoWeather and GoRain fill in the rest of the picture, giving you accurate, on-farm weather and rainfall data to support every decision, from spraying and irrigation to harvest timing.

On-farm weather station

GoWeather is Goanna Ag's most popular device: a reliable, solar-powered automatic weather station built to withstand harsh conditions in the field, with no moving parts to wear down over time.

GoWeather®

GoWeather is built to last in the harsh elements it's there to track. Solar powered and low maintenance, it delivers environmental data that directly impacts your farming decisions, with 10-minute recording intervals, real-time and historic data accessible through our easy-to-use app, and seamless integration into production management and forecasting tools.

 
 

Remote rainfall monitoring

GoRain is a high-accuracy, low-cost automatic rain gauge that reports rainfall the moment it happens, no more trekking out to check a gauge manually.

 
 

GoRain®

Rainfall is one of the most important and most variable inputs on your farm. GoRain delivers accurate, local rainfall data every 10 minutes along with a 10-day forecast, helping you make smarter agronomic decisions, protect yield, and get more value from every drop. Built tough for Australian conditions and simple to use on our app.