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

July 15, 2024

Santa Ana Winds - A persistent wind that blows from east to west across southern California. The most common time of the year to see Santa Ana winds is from September to May. During this time of year a high pressure system periodically sets up over Nevada and Utah. The flow around the high induces the east winds that flow down the mountains into southern California. These dry, warm winds are notorious for creating ideal conditions for fires to start and spread.

July 14, 2024

Centripetal Force - A force that acts on an object moving in a curved path. Centripetal force is directed towards the center of an objects axis of rotation. This force is responsible for keeping an object moving in a curved path.

July 13, 2024

Zonal Flow - The description that meteorologists use to refer to an orientation of the jet stream that is set up from west to east. A zonal flow pattern is typically characterized by fairly seasonal temperatures and on and off precipitation threats as quick-moving upper level disturbances can be expected from time to time.

July 12, 2024

Polar Vortex - The polar vortex is an area of low pressure that coincides with the pool of arctic air that encircles the North or South Pole. Each fall, the polar vortex begins to form due to decreasing daylight near the poles. By mid-winter it becomes more influential to the weather patterns in the mid-latitudes.

July 11, 2024

Parhelion (Sun dog) - The scientific name for sun dogs. This phenomenon is seen as two colored luminous spots that appear at roughly 22 degrees on both sides of the sun at the same elevation. They are caused by the refraction of sunlight passing through ice crystals. They are most commonly seen during winter in the middle latitudes and are exclusively associated with cirriform clouds. They are also known as mock suns.

July 10, 2024

Cloud - Any visible mass of water droplets, ice crystals, or a mix of both that become suspended in the atmosphere. Fog is a cloud that forms at the ground, while cirrus clouds oftentimes form at around 40,000 feet.

July 9, 2024

Hydrometeor - Any product of condensation or deposition of atmospheric water vapor, whether formed in the free atmosphere or at the earth's surface. Sea spray blown into the air is also composed of hydrometeors. Raindrops, snowflakes, and all other types of precipitation qualify as hydrometeors.