Tropical Storm Isaias could strengthen into a hurricane and threaten the East Coast after battering Puerto Rico and the Dominican Republic, according to U.S. forecasters. The A man guides a tow truck under a downed power line pole after Tropical Storm Isaias hit the area in Mayaguez, Puerto Rico, July 30, 2020.President Donald Trump has signed an emergency declaration for Puerto Rico, which has yet to fully recover from 2017’s Hurricane Maria and a recent series of earthquakes. Tropical Storm Isaias knocked out power across Puerto Rico and caused widespread flooding and a number of small landslides. More than 100,000 people were in need of fresh water. Emergency workers had to rescue several families who were reluctant to leave their homes for public shelters because of the coronavirus.  Isaias also blew down trees in the Dominican Republic. Police arrested surfers who refused to heed warnings to find shelter. Isaias is the ninth named storm of a busy Atlantic hurricane season. This is the earliest date a storm beginning with the letter “I” has formed. 
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