Temperatures over water and land change

Warm air over land sinks and stays in place over the land

Cool air rises and is replaced by warm air from the ocean

cool air sinks and stays in place over land

warm temperatures

cloudy conditions

clear conditions

cool temperatures

The prevailing westerlies move sir masses from west to east but may be deflected by the jet stream.

The trade winds move air masses from west to east across the United States

The jet stream moves air masses from the Pacific Ocean across the United States

The warm air from the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean

precipitation

cloud cover

wind direction

air pressure

spring

summer

winter

autumn