Flashes of lightning lit up Hurricane Erin’s eye – just as it intensified into a Category 5 storm. Footage from NOAA’s GOES-19 satellite shows electricity crackling around the storm’s eye as it intensified on Saturday night. With winds surging past 160 mph (260 km/h), Erin became one of the fastest-intensifying hurricanes ever recorded in the Atlantic. That flash of lightning in the eyewall? Scientists say it’s a telltale sign of extreme convection and turbulence inside the storm – the kind that

Millions from California to Washington are under extreme heat alerts while lightning from monsoon storms across the West threaten to spark more fires. Meanwhile, cooler than normal temperatures will move into the East. Lee Goldberg has the forecast. http://abcn.ws/PckkZ3X | ABC World News Tonight with David Muir

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