A warm front forms when .
the temperature in a warm air mass increases

a warm air mass meets another air mass of the same temperature

warm air glides up over colder air

cold air moves up over warmer air

Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front