Science for beginners . Fig. 143.—Tornado. Rather small funnel cloud extending to Fig. 144.—Same tornado, closer view. LOCAL STORMS 187 tornado is very much larger and stronger. The tornado isusually not more than 50 to 500 yards wide. Some have beenonly a few yards, others a mile or more in diameter (, 144 and 145). The rising air currents in a cumulus cloud sometimes meetat the proper angle to throw themselves into a whirl as theygo up through the cloud (much as the water in a wash bowl

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscience, bookyear1921