![]() LOCAL CLOUD COVER ARCHIVECU Boulder ATOC Weather Station has information from the last 24 hours on the local temperature, dew point, humidity, solar flux, pressure, wind speed, peak wind gust speed, wind direction, and rainfall.Īdditionally, the University of Colorado Boulder weather archive is also available.SBO NOAA Sky Cover provides information direct from the national digital forecast display database.Dark Sky Net Forecast provides data on temperature, current conditions, wind speed, humidity level, dew point, UV index, visibility, pressure and more.(Local time for Cape Cod Imaging Station is -4.0 hours from GMT.) Cloud Cover Overcast 90 covered 80 covered 70 covered 60 covered 50 covered 40 covered 30 covered 20 covered 10 covered Clear The line, labeled Cloud Cover forecasts total cloud cover. The data comes from a forecast model developed by Allan Rahill of the Canadian Meteorological Center. A digit 1 on top of a 3 means 13:00 or 1pm. It's a prediction of when Sommers-Bausch Observatory, CO, will have good weather for astronomical observing. At a glance, it shows when it will be cloudy or clear for up to the next two days. SBO Clear Sky Chart is an astronomer's forecast.Sommers-Bausch Observatory utilizes multiple forecasting tools, including: ![]() This keeps the surface warmer than it would be during a night without cloud cover.CU Boulder Weather Station on the roof of the Duane Physics Building. However, if thick cloud cover is present over a region where such radiative cooling is happening, some of the heat is trapped and reflected back to Earth by the clouds. The warm air near the ground rises in a process known as radiative cooling. Typically, the solar heat absorbed by the ground during the day is released at night as Earth cools. Meanwhile, lower level clouds often reflect heat from the sun back into space and keep the surface temperatures cool.Ĭloud cover can also limit the cooling that occurs in a region at night. High-level, feathery clouds help heat the planet during the day, allowing sunlight to penetrate the surface and prevent heat from escaping. Whether clouds heat or cool the surface of Earth depends on the height and type of cloud present in the sky. They radiate this heat back toward Earth, warming the lower regions of the atmosphere. Clouds can also act like a blanket, trapping heat on Earth by absorbing the heat released by the surface of the planet. ![]() This prevents the planet from becoming too warm. During the day, clouds reflect a portion of the solar energy that reaches Earth back into space. Clouds also act as an “atmospheric blanket” that helps to regulate the temperature at Earth’s surface. However, clouds do more than bring rain or fair weather. For example, thick, gray, stratus clouds that bring heavy precipitation are called nimbostratus. Most clouds take on these three basic shapes-cumulus, cirrus, and stratus-and are further classified as nimbo-form if they bring rain. Stratus clouds are thin-layered, gray clouds that can result in light precipitation. Cirrus clouds are thin, wispy clouds that usually occur in the upper levels of the atmosphere ahead of a storm. When high-level cirrus or low-level stratus clouds increase in a region, the region can expect to see precipitation from an incoming low-pressure system. Residents can expect sunny skies and little precipitation. ![]() ![]() Certain clouds, such as low-level, short, cumulus clouds, indicate that fair weather is moving into the area. When there are few clouds in a region, it generally signals the presence of a high-pressure system, which means that residents can expect fair weather and no precipitation. Water evaporates from the ground and condenses in the atmosphere, resulting in a wide variety of cloud shapes: from large, puffy clouds to wispy formations. Cloud cover may also influence temperatures at the surface of the planet. The type and amount of clouds that commonly form over a region impact the precipitation conditions. Clouds form throughout all the levels of the atmosphere and affect both weather and climate. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |