Whois & Analysis for ventusky.com

Numerical weather prediction (NWP) uses mathematical models of the atmosphere and oceans to predict the weather based on current weather conditions.

Though first attempted in the 1920s, it was not until the advent of computer simulation in the 1950s that numerical weather predictions produced realistic results.

A number of global and regional forecast models are run in different countries worldwide, using current weather observations relayed from radiosondes, weather satellites and other observing systems as inputs.

The Global Forecast System (GFS) is a global numerical weather prediction system containing a global computer model and variational analysis run by the United States' National Weather Service (NWS).

Rain is liquid water in the form of droplets that have condensed from atmospheric water vapor and then precipitated—that is, become heavy enough to fall under gravity.

Rain is a major component of the water cycle and is responsible for depositing most of the fresh water on the Earth.

It provides suitable conditions for many types of ecosystems, as well as water for hydroelectric power plants and crop irrigation.

Wind is the flow of gases on a large scale.

On the surface of the Earth, wind consists of the bulk movement of air.

In outer space, solar wind is the movement of gases or charged particles from the Sun through space, while planetary wind is the outgassing of light chemical elements from a planet's atmosphere into space.

Winds are commonly classified by their spatial scale, their speed, the types of forces that cause them, the regions in which they occur, and their effect.

The strongest observed winds on a planet in the Solar System occur on Neptune and Saturn.

Winds have various aspects, an important one being its velocity (wind speed); another the density of the gas involved; another its energy content or wind energy.

A temperature is an objective comparative measurement of hot or cold.

It is measured by a thermometer.

Several scales and units exist for measuring temperature, the most common being Celsius (denoted °C; formerly called centigrade), Fahrenheit (denoted °F), and, especially in science, Kelvin (denoted K).