By Brian Gaze
Even at short range forecasts for rain can be wrong. There are a number of reasons for this, for example, showers can be very hit and miss. Even though the resolution of computer models continues to increase, they still struggle to pinpoint exactly where showers will develop.
Don't be caught out by unexpected rain
To improve the chance of being correct, the "Will it rain feature" combines forecasts from several different computer models. More specifically, it uses deterministic and ensemble data to improve accuracy, especially at longer ranges. The forecasts are fully refreshed four times each day to keep you up to date with the latest probabilities.
To check the chance of rain you can select your location from here:
Will it rain
Alternatively, there is a link on the 16 day forecast pages under the "When will it rain?" section which takes you directly to your location. Some frequently requested locations are:
London - Glasgow - Manchester - Lake District - Cornwall
Once opened you will see a short range forecast giving the percentage chance of rain and the possible amounts in millimetres for the next 3 days.
Below it is a medium range forecast which gives a percentage chance of rain for days 4 to 14.
The "Will it rain" feature should provide a more accurate rain prediction than the standard ones in the hourly, 7, 10 and 16 day at a glance forecasts because it amalgamates data from different computer models. Hopefully it will help you stay dry when the weather turns wet, but remember that in the UK there are no guarantees.
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