Weather Word of the Day | weatherology°
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Weather Word of the Day

April 22, 2024

Stratus - A low, generally gray cloud layer with a fairly uniform base. Stratus clouds have the appearance of fog that doesn't reach the ground. These clouds tend to be associated with either no precipitation or light precipitation such as drizzle.

April 21, 2024

Greenhouse effect - The term that describes how the Earth receives solar radiation and how it is essentially trapped in the Earth's atmosphere. The incoming solar radiation is absorbed at the surface and then radiates back up to space in the form of infrared radiation. However, the greenhouse gases in the atmosphere absorb some of this outgoing radiation and then re-radiate it back down to the surface. The higher the concentration of greenhouse gases, the more magnified this effect becomes.

April 20, 2024

Deposition - The process where water turns directly from vapor to ice, without first becoming liquid. A common instance of deposition is when frost forms on the grass during cold mornings.

April 19, 2024

Sub-vortices - Small areas of intense rotation located within a type of tornado called a multi-vortex tornado. These spinning whirls can be thought of as individual tornadoes that are mixed within the main tornado. These are also sometimes referred to as suction vortices and the winds within them can be 100 mph stronger than the main body of the tornado. These can explain why the damage path in a tornado can vary greatly.

April 18, 2024

St. Elmo's fire - A bright electric discharge that is projected from objects when they are in a strong electric field, such as occurs during a thunderstorm. This discharge can cause a ship's mast or airplane wings to have a greenish or bluish glow.

April 17, 2024

Climate - The average weather conditions for a specific location during a year or for many years. This can be thought of as the prevailing weather conditions that occur for a certain location in general, or over a long period of time.

April 16, 2024

Thermosphere - The atmospheric shell extending from the top of the mesosphere to outer space. It is a region of more or less steadily increasing temperature with height, starting at around 50 miles above the surface. This layer is around 320 miles thick and temperatures in this layer can reach 4,500 F. The International Space Station orbits the Earth in this region of the atmosphere!