ACAPULCO—Tropical storm Kay strengthened into a hurricane off Mexico’s Pacific coast on Monday, weather authorities said, a day after leaving three people dead in the southwestern state of Guerrero. The National Hurricane Center (NHC) in Miami reported Kay had strengthened into a hurricane, forecasting that outer rain bands will continue to affect southwestern Mexico for…

Tropical storm Kay strengthened into a hurricane off Mexico’s Pacific coast on Monday, a day after leaving three people dead in the southwestern state of Guerrero. Authorities said on Tuesday that Kay is expected to intensify to a Category 2 hurricane later in the day and could further strengthen to “major” storm over the next…