Heinrich Wilhelm Blasius (1818–1899), later known as William Blasius was a German-born American meteorologist. He was elected as a member of the American Philosophical Society in 1875.
He studied natural sciences, especially zoology, in Bonn from 1842 to 1847. After his studies he became a professor of natural history at the Lyceum in Hanover. In 1850 he emigrated to the United States for political reasons and lived in Cambridge near Boston.[2] In 1852, Blasius put forward a theory about the genesis of storms similar in many points to the basic views of later adopted Norwegian frontal theory, following in the steps of Heinrich Wilhelm Dove. However, he found few supporters because he created his own terminology and did not substantiate his theories. His theses were soon largely forgotten.[2]