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Video instructions and help with filling out and completing Are Form 2220 Forecast

Instructions and Help about Are Form 2220 Forecast

We see them in the sky nearly every day but what are clouds how do they form and what do they mean for our weather clouds are composed of billions of tiny water droplets and your average cloud is roughly a cubic kilometer in size and tips the scales at our own 500 metric tons the cloud stays aloft because believe it or not it's actually lighter than the air around it because the water droplets are spaced so far apart that their density is comparable to air so it comes down to comparing the molecules and since water molecules are lighter than oxygen and nitrmolecules that make up over 99% of the atmosphere the water floats now clouds form as warm humid air rises and cools and the water vapor condenses out unto tiny particles in the air and there are several types named based on their shape and their altitude at the lowest level there's cumulus which form in Fairweather there's also Stratus and stratocumulus which can produce a bit of rain or snow if the cumulus clouds pile up and reach for the sky though this tells us that stormy weather is brewing and these can develop into enormous tower and cumulonimbus clouds that are responsible for thunderstorms and sometimes even worse at mid levels we have altocumulus and altostratus which tend to indicate that some kind of active weather is probably on the way when altostratus turns a dark gray and produces continuous rain or snow it's then called nimbostratus at high levels there's wispy cirrus cirrostratus and cirrocumulus clouds which typically formed due to a nearby warm front when these conditions prevail we can also see persistent contrails which are artificial clouds produced in the wake of jet engines even higher our stratospheric nae korea's clouds that are associated with the Antarctic ozone hole and the highest are the mesospheric noctilucent clouds which form as water vapor settles out onto meteoroid dust from space now we may have skipped fog here but come back for episode 8 when we take a close look at the different kinds of fog and how they form as we all become a bit more weather wise.

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