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The average cloud cover of the Earth, 2005-2013. Colors range from blue (no clouds) to white (totally cloudy). [6] (click for more detail) Cloud cover values only vary by 3% from year-to-year averages, whereas the local, day-to-day variability in cloud amounts typically rises to 30% over the globe.
A sky half full of clouds would have a circle that was half white and half black. Below the shape indicating sky cover, the station model can indicate the coverage of low clouds, in oktas, and the ceiling height in hundreds of feet. The ceiling height is the height at which more than half the sky is covered by clouds.
On a sunny day, Rayleigh scattering gives the sky a blue gradient, darkest around the zenith and brightest near the horizon. Light rays coming from the zenith take the shortest-possible path ( 1 ⁄ 38 ) through the air mass , yielding less scattering.
A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.
SUNDAY: Cloudy Morning. Then, Clearing. High 79. Wind S 10-15. SUNDAY NIGHT: Increasing Clouds. Low 63. Wind S 10-15.MONDAY: Mostly Cloudy. 40% Chance of Showers & Thunderstorms. High 79. Wind S ...
Near perfect weather is on tap for Halloween festivities tomorrow. Clear skies with late afternoon temperatures in the 70s quickly cooling into the 50s and 60s over the course of the evening.
The list of cloud types groups all genera as high (cirro-, cirrus), middle (alto-), multi-level (nimbo-, cumulo-, cumulus), and low (strato-, stratus). These groupings are determined by the altitude level or levels in the troposphere at which each of the various cloud types is normally found.
“Even on cloudy days, UV rays can penetrate through the clouds, so wearing UV protective clothing ensures consistent protection,” dermatologist Dr. Hannah Kopelman says. [Yahoo Life] [Yahoo ...