Thunderstorms in Northern Alaska over sea ice on Monday sparked rare lightning strikes. The Washington Post reported lightning strikes occurred north of Prudhoe Bay, directly over sea ice, a rare phenomena that occurs once or twice a decade.

Researchers predict a tripling of thunderstorms by the end of the century, which could lead to heavier rainfall and flash flooding, landslides and more lightning-sparked wildfires.

After the thunderstorms that moved through Southcentral Sunday evening, Anchorage broke a new record…the most consecutive days with a thunderstorm: three.

Records show there were 18 years without any days of thunderstorms in Anchorage. The average is about 1.4 days of thunderstorms a year. This year there have already been four, and more over the Chugach.