What are high and low pressure systems? | Weather Wise Lessons 

Well done lady thank you

These girls make me want to learn everything about weather

this was so helpful

Who here for class

Ok, so explain upper level pressure and lower level pressure systems and how they mix or cause storms

How can a Low pressure system stay in the same place for a week?

So does this explain why, during the recent heat wave that affected the SW US it was slightly cooler than average where I live in the Pacific Northwest?

Nice

That girl at the beginning is hot

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