REUTERS/Adrees LatifJuly 19 (Reuters) - Severe weather disrupted parts of the United States on Wednesday, with a tropical storm skirting Hawaii, thunderstorms knocking out power in Kentucky and Tennessee and a relentless heat wave stubbornly parked over the Southwest. The zone of extreme heat could expand into the northern Plains and Midwest beginning the middle of next week, the weather service said. TROPICAL STORM, POWER OUTAGESIn the Hawaiian Islands, Tropical Storm Calvin lashed the Big Island on Wednesday with strong winds and heavy downpours as it slowly passed south of the Pacific archipelago. Hawaii Governor Josh Green declared a state of emergency, closing all state offices and schools in anticipation of the storm. New York, the most populous city in the United States, was listed on Wednesday morning as No.

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Persons: Olivia, Evelyn Black, Adrees Latif, Storm Calvin, Josh Green, Brendan O'Brien, Jonathan Oatis Organizations: REUTERS, National Weather Service, Texas Tribune, Austin, Texas Department, Criminal, Thomson Locations: Fountains, Discovery, Houston , Texas, U.S, United States, Hawaii, Kentucky, Tennessee, Canada, Southern California, San Bernardino , California, Phoenix, San Antonio , Texas, Midwest, TEXAS, Texas, Austin, Hawaiian, Virginia, Carolinas, East Coast, New York, Chicago