Hurricane Bertha (2008) weakened to a tropical storm on July 13, and a large upper-level low over the central Atlantic steered it east and southeast. After generally maintaining its strength for several days, an eye redeveloped and convection became more symmetric about the feature on July 18, prompting the NHC to upgrade Bertha to a hurricane around 18:00 UTC that day. The storm rapidly accelerated ahead of a trough off the East Coast of the United States, forcing Bertha into rapidly cooler waters. Its wind field became extremely asymmetric and deep convection near the center dissipated, indicative of an extratropical transition that Bertha
Bertha Calloway Bertha Calloway Bertha Calloway (July 14, 1925 – November 25, 2017) was an African-American community activist and historian in North Omaha, Nebraska. The founder of the Negro History Society and the Great Plains Black History Museum, Calloway won awards from several organizations for her activism in the community and Nebraska. "I Love Black History" is the current website for the Bertha W. Calloway Center for the Research and Study of African and African-American History, Art, and Culture. She was born in 1925. As a student Bertha Calloway was a member of a pioneering Omaha civil rights group called the DePorres