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Is it a hurricane? Or just hurricane-force winds? What counts as a heatwave? Was 2014 the “coldest winter for 100 years”? Test your knowledge and arm yourself with the facts so you’re not caught without an umbrella the next time sensational weather stories start raining down.

Haven't The Foggiest

Also known as a ‘dust devil’, a willy-willy is a vortex of dust formed by wind. (Source: http://www.metoffice.gov.uk/learning/learn-about-the-weather/weather-phenomena/willy-willy)

Which of these is a real weather term?

A monsoon is a seasonal wind shift that mostly occurs in tropical parts of the world, not just a period of heavy rainfall as it often seems to be dubbed in the media. Monsoons commonly occur in India, East Africa and South-East Asia. These wind shifts, which persist for months, can bring moist air from the sea to land which leads to “monsoon rains”. However some monsoons are dry and can cause droughts. (Source: http://education.nationalgeographic.org/encyclopedia/monsoon/)

What is the definition of a monsoon?

All 3 of the criteria must be met for such a weather formation to count as a blizzard. (Source: http://glossary.ametsoc.org/wiki/Blizzard)

What is a blizzard?

We frequently see headlines like “UK hotter than [somewhere that sounds hot]”. Greece, Spain and other Mediterranean locations are popular targets, and sometimes Australia is mentioned (where it is usually winter AND night time). There are so many places to choose from that you could write a headline like this most days.  
For more details on this, get in touch with enquiries[at]senseaboutscience.org.

How often is London hotter than Athens?

The UK is often hit by strong storms, some with hurricane-force winds (>74mph). However the UK has never been hit by a hurricane and probably never will be. Hurricanes are tropical storms that only form in the tropics and are much stronger than anything we experience. They get their energy from warm seas, and can produce half-a-metre of rain in a day (roughly equivalent to London’s rainfall in a year) and wind gusts over 200 mph. Sometimes these storms head towards the UK, but when moving across the cooler North Atlantic, they lose much of their energy (fortunately for us). Sometimes they will still be known as ‘ex-hurricane XXXX’, but this is for ease of reference rather than because they are any more significant than other storms we experience. (More information on hurricanes: http://blog.metoffice.gov.uk/2013/10/26/the-severe-storm-this-weekend-and-why-its-not-a-hurricane/)

When was the UK last hit by a hurricane?

Hurricane-force winds come in at a whopping 74mph, about as fast as a cheetah. But remember, just because the winds are hurricane-force it doesn’t mean it’s a hurricane! (More info on hurricanes: http://blog.metoffice.gov.uk/2013/10/26/the-severe-storm-this-weekend-and-why-its-not-a-hurricane/; http://www.metoffice.gov.uk/weather/tropicalcyclone/hurricane)

What is the minimum speed of a hurricane-force wind?

Beginning in December and lasting until March, the UK experienced its coldest winter for over 200 years in 1962-1963, and it is still the coldest winter recorded since 1740. Temperatures dropped below -20 degrees, lakes and rivers froze over, animals starved, and villages were cut off. Visit the MET office website to find out more (http://www.metoffice.gov.uk/learning/learn-about-the-weather/weather-phenomena/case-studies/severe-winters).

Headlines have told us that 2012, then 2014 were to be the coldest winters in Britain for 100 years. Both were wrong. So when was the coldest UK winter in the last 100 years?

Although relatively rare, thundersnow is the term given when a thunderstorm produces snow. Thunderstorms require a lot of energy (usually hot air) and so they rarely form in winter. (Sources: http://www.metoffice.gov.uk/learning/learn-about-the-weather/thunder-and-lightning/thundersnow; http://news.nationalgeographic.com/news/2009/03/090303-thunder-snow-storm.html)

“When the temperature is higher than the average maximum temperature for the time of year by…

We often hear a a spell of hot weather called a ‘heatwave’. But if it doesn’t match the criteria above then strictly speaking it can’t be classed as a heatwave. (Source: http://www.metoffice.gov.uk/learning/learn-about-the-weather/weather-phenomena/heatwave)

What is the definition of a heatwave?

Meteorologists use models to make predictions about the weather and these are improving all the time. However, weather is very unpredictable at small scales (e.g. it might be raining on one side of a town but not the other), so even the most advanced models can’t be 100% certain. Visit the Met office website to find out more about their modelling systems for forecasts (http://www.metoffice.gov.uk/research/modelling-systems), and read our ‘Making Sense of Uncertainty’ guide to find out more about the role of uncertainty in science (http://bit.ly/1ZlUsf4).

What does an '80% chance of rain' mean?

We don’t want to rain on your parade, but you may want to brush up on your meteorological know-how. Not to worry, you can check out the Met office website (http://www.metoffice.gov.uk/public/weather) for some clarity, or contact Sense About Science at enquiries[at]senseaboutscience.org with your weather questions and we can get in touch with a scientist on your behalf!

Drizzle

Not bad but don’t turn off your fog lights just yet! If you want to brush up on your weather knowledge why don't you check out the MET office website (http://www.metoffice.gov.uk/public/weather). Not found what you're looking for? Contact Sense About Science (enquiries[at]senseaboutscience.org) with any terms that you think are being misused or are made up and we can contact scientists to find out!

Foggy

Nice! Your weather knowledge is pretty bright with just the odd patch of cloud. Why not have a scroll through the MET office website (http://www.metoffice.gov.uk/public/weather) for those terms you’re not so familiar with.

Sunny spell

Amazing! You have breezed through our weather quiz, but keep an eye out. Tomorrow there could be a flurry of misused or fake terms on the headline horizon. If you see any terms that you're not sure of, either check the MET office website (http://www.metoffice.gov.uk/public/weather), or get in touch with Sense About Science (enquiries[at]senseaboutscience.org) and we can put any questions you have to a meteorologist.

Steam devil

Fantastic! You stormed through our weather quiz, so here’s a fun fact for you – the second rainbow of a double has the colours in an inverted order. But you already knew that, didn’t you?

Haven't The Foggiest

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