Gordon Boyce said he often finds predicted snowfall and rainfall amounts are frequently accurate, and he was curious how these amounts are determined.
A City of St. John’s snowplow passes pedestrians on Lemarchant Road Feb. 14. - Keith Gosse/The TelegramI often get asked how much rain and snow people can expect where they live.
Weather models are a common tool in modern weather forecasting. There are various global and regional models around the world that use complex mathematical equations to take the current state of the atmosphere and try to predict how it will change over time. A forecaster can review the real-time progression of storms on satellite and radar imagery for comparison to model data. Plus, a local forecaster often knows more than a model about how topography and wind direction will impact the forecast.
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