Spiral Cloud Band Associated with a Tornado

Science  16 Sep 1960:
Vol. 132, Issue 3429, pp. 736-737
DOI: 10.1126/science.132.3429.736


The radarscope photographic sequence, by far the best example on record, reveals a spirally banded structure about 10 miles in diameter which is similar to spiral bands of hurricanes ranging as far as 250 miles and to the banded cloud structure of well-developed storms of 1000 miles as photographed by Tiros I.