- Roseville is a city in Ramsey County, Minnesota, United States. It is one of two Twin Cities suburbs that are adjacent to both Saint Paul and Minneapolis (the other is Lauderdale). The land comprising Falcon Heights, Lauderdale, and southern Roseville was unincorporated until Roseville incorporated in 1948 and Falcon Heights and Lauderdale incorporated in 1949.
- Precipitation (Wikipedia)
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and “precipitates” or falls. Thus, fog and mist are not precipitation but colloids, because the water vapor does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapor to the air. Precipitation forms as smaller droplets coalesce via collision with other rain drops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers.