Note that two the storms you're referring to (Iselle and Julio) may have similar predicted paths, but they currently 1000 miles away from each other, and will definitely not merge. Iselle is already impacting Hawaii, while Julio will not approach for several days (assuming the current forecast verifies).
Both FTDNA and Ancestry sponsor groups or projects where people in the same haplogroup can exchange information and maybe even find an ancient connection. But Y-DNA and mtDNA are intended to check ancient bloodlines, 10,000-50,000 or so years ago. They are not generally useful by themselves for genealogy.
Y-DNA Genetic Cousins. One of the great benefits of Y-DNA testing is the possibility of finding close genetic matches in your testing companyâs database. Family Tree DNA has about 500,000 Y-DNA records in its database and the company sponsors nearly 8,000 Y-DNA surname projects.f you're a woman, you can still get answers about your ethnic heritage by testing a male in your paternal line, e.g. your brother, your father, your fatherâs brother, or a son of your fatherâs brother. Y-DNA Haplogroups. The results of your test will tell you which haplotype you belong to.