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Cloud cover forecasts will also be important for locations outside the path of totality, given that at least 99% of the contiguous U.S. will get to experience at least a partial eclipse.
They forecast the cloud cover, transparency and astronomical seeing, parameters which are not forecast by civil or aviation forecasts. [1] They forecast hourly data, but are limited to forecasting at most 48 hours into the future. Each individual chart provides data for only a 9 mile radius, and so are essentially point forecasts.
As many as 300,000 tourists are expected to visit Bloomington on April 8 for the total solar eclipse, but the weather forecast for the big day is casting a long shadow on the event.. For weeks, it ...
Here are the latest forecast updates for Eclipse Day, according to the National Weather Service office in Wilmington. Here is the updated cloud cover forecast for Monday afternoon during the total ...
The symbols for cloud cover on these maps, like the modern symbols, were drawn inside the circle marking the position of the weather station making the measurements. Unlike the modern symbols, these ones consisted of straight lines only rather than filled in blocks which would have been less practical on a hand drawing.
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. Land is generally covered by 10-15% less cloud than the oceans, because the seas are covered with water, allowing for more evaporation .
The eclipse takes place on Monday, April 8, and for areas in the path of totality, it will be an afternoon affair, with the exact timing varying depending on your location. People outside of the ...
When there is enough moisture to form typical cloud cover, the greenhouse effect from "free" water vapor goes down to 50%, but water vapor which is now inside the clouds amounts to 25%, and the net greenhouse effect is at 75%. [21] According to 1990 estimates, the presence of clouds reduces the outgoing longwave radiation by about 31 W/m 2.