what are pressure systems, troughs, highs & lows when the weather report comes on?
In: Physics
High pressure systems usually means it not going to rain. Low pressure means it’s more likely that there will be rainfall.
High pressure systems are caused by cooler air falling and compacting air in the atmosphere (increasing pressure). Low pressure is where warm air rises (think evaporation) releasing pressure.
A trough is like a burst of low pressure pushing out from a low pressure system, it usually carries strong winds and sometimes downpours.
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