Free eBook · 33 entries · EPUB + PDF
33 Weather Facts
Lightning, hail, clouds and storms, sourced. A weather fact for each day of the month, with sources like NOAA and the Met Office named where it matters.
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Day 1
A lightning bolt can heat the air to around 30,000 K, about five times hotter than the Sun's surface (NOAA).
Day 2
Count the seconds between flash and thunder. Divide by 5 for miles, or by 3 for kilometres.
Day 3
'When thunder roars, go indoors' is the National Weather Service's rule. If you can hear thunder, you're close enough to be struck.
Where this comes from
The book is drawn from RushOrb, a free iPhone app. If you like the format, the app has more.
RushOrb: Storm AtlasFree on the App Store for iPhone
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Free to read, print and share unchanged. Please don't sell it. Also available as a free calendar subscription.