MIAMI (AP) — Narda was upgraded to a hurricane Tuesday as it strengthened in the Pacific Ocean off the west coast of Mexico ... (137 kph), according to an advisory from the Miami-based weather center.

Tropical Storm Imelda formed Sunday and is expected to become a hurricane off the U.S. East Coast early next week.

On Sept. 23, a spacecraft will launch with a clear mission — to keep a constant watch on the sun to help protect Earth from space weather. The satellite, Space Weather Follow-On L1 (SWFO-L1), is ...