<P> Freezing rain develops when falling snow encounters a layer of warm air aloft , typically around the 800 mbar ( 800 hPa ) level , causing the snow to melt and become rain . As the rain continues to fall , it passes through a layer of subfreezing air just above the surface and cools to a temperature below freezing ( 0 ° C or 32 ° F ) . If this layer of subfreezing air is sufficiently deep , the raindrops may have time to freeze into ice pellets ( sleet ) before reaching the ground . However , if the subfreezing layer of air at the surface is very shallow , the rain drops falling through it will not have time to freeze and they will hit the ground as supercooled rain . When these supercooled drops make contact with the ground , power lines , tree branches , aircraft , or anything else below 0 ° C ( 32 ° F ) , a portion of the drops instantly freezes , forming a thin film of ice , hence freezing rain . The specific physical process by which this occurs is called nucleation . </P>
<P> Freezing rain develops when falling snow encounters a layer of warm air aloft , typically around the 800 mbar ( 800 hPa ) level , causing the snow to melt and become rain . As the rain continues to fall , it passes through a layer of subfreezing air just above the surface and cools to a temperature below freezing ( 0 ° C or 32 ° F ) . If this layer of subfreezing air is sufficiently deep , the raindrops may have time to freeze into ice pellets ( sleet ) before reaching the ground . However , if the subfreezing layer of air at the surface is very shallow , the rain drops falling through it will not have time to freeze and they will hit the ground as supercooled rain . When these supercooled drops make contact with the ground , power lines , tree branches , aircraft , or anything else below 0 ° C ( 32 ° F ) , a portion of the drops instantly freezes , forming a thin film of ice , hence freezing rain . The specific physical process by which this occurs is called nucleation . </P>
what do you call the rain with ice
what do you call the rain with ice
sleet
sleet