Weather
Lightning strikes somewhere on Earth around 30 times a second.
Earth has undergone a sequence of glacial advances and warm periods the last 2.7 million years.
This is not early for leaves to change color.
Severe weather is not as frequent as earlier in the summer because the upper level winds are weaker.
Because the angle of the sun varies with latitude, the length of the twilight period also varies.
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In recent weeks, the strength and position of the jet stream has favored very little storm activity.
This happens when the air underneath a cloud is dry.
This warm blob has been created by a large region of high pressure in the atmosphere.
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John Wheeler
Jared Piepenburg
Lydia Blume
Jesse Ritka
Robert Poynter
Tim Albertson
Dillon Vogt
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