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Why is the Weather Forecast Always Wrong?


You know what I’m talking about. You’ve planned the beach trip for days. Took forever to organise between your friends or family, the kids are excited. Towel packed, sunscreen on, only to arrive to, overcast skies, and rain in the distance. But, no real harm done, you pack up and head home again.


For us, when organising outdoor events monitoring the forecast is vital. And harm CAN be done by ignoring the forecasts or taking risks…


Wind speeds above 25mph can make conditions difficult, however above 30mph make our outdoor operations too dangerous and risky for staff, traders and visitors. The canopies we use can act like kites in high winds. With wind-speeds above 25mph we remove sides to reduce the risk of canopies lifting – this however causes traders problems in that they can’t keep their valuable stock on their tables.

Other things we take into consideration is the direction of the wind, the shelter at the site, the availability of suitable ground to add additional ground pegs, the ground conditions in general – ie has the recent weather made the ground too wet.


We don’t take risks in relation to safety – if the predicted weather indicates the day will be unsafe due to high winds of 30mph or above we either cancel, or, where possible look for an alternative venue which wont always be an option, (a venue isn’t always available at such short notice, is outside our budget, or isn’t practical ie it’s upstairs, there’s no parking available to allow traders to unload, or there’s no time to notify visitors of the new venue).

We’ve experienced an incredibly difficulty year with a large number of events cancelled due to high winds, or, we should say, the prediction of high winds. The high winds forecasted didn’t always materialise. We often receive messages to say ‘But it’s not windy’. Possibly the forecast didn’t materialise as predicted, or possibly the cancellation was made due to high winds predicted during set up time in the morning.


Organising an outdoor event takes time, and working with an uncontrollable element such as the weather makes everything more difficult. With a large number of traders starting preparations a few days before an event, we need to make a decision on whether we can go ahead two days before the actual date. We use the forecasts available to us at the time to make these decisions.


We have also experienced events where the forecast was worse than predicted, causing late notice cancellation or and early end to a market day.


We take a financial hit when we cancel an event, we know the traders that depend on the markets as a source of income take a financial hit also, visitors that have planned to visit are disappointed – but none of those things can justify taking a risk with public, trader or staff safety.


Certainly the forecast can also change after the decision is made. But, it’s inevitable that this will happen at times. That doesn’t make it any less frustrating….Why can’t those guys at the weather station do their job right?


In weather forecasting, it's never simple. Every forecast comes with a probability, or a level of uncertainty. Meteorologists forecasts will never be perfect. But huge accomplishments have been made in the science of weather forecasting over the last few decades, and if that continues, it may improve.


We often take for granted how often the weather report is actually correct, and instead only notice when it isn’t. But in the end, we are an outdoor market and the weather will always be an element we have to work with. We can only make decisions based on the information available to us at the time, this is one element we cannot control and that no one can 100% predict.





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