Where do weather forecasts come from?
Let's just check those measurements...
The data that scientists collect to make weather forecasts is
pretty much the same as when scientists started to study weather
about three centuries ago. Luckily for us, the instruments for
measuring have changed a lot. This has helped to make forecasts in
2011 more reliable and more detailed than three centuries ago.
Weather measuring instruments, taken from 'Table of
Pneumaticks', published 1728
The improvements are also due to better weather data models
which help us to use the measurements to predict future conditions
more accurately. Welsh TV channel S4C uses a 1 kilometre resolution
forecast. This means that it forecasts the weather for an area of 1
kilometre radius. This is the most accurate and detailed forecast
available in the UK and you and your school can use it as part of
the Weather Labs project! To find the weather for your area, go to
Have a look at Where do
forecasters get data? to find out how meteorologists gather