Forecasters are calling for a slight chance of thunderstorms Tuesday afternoon over the mountains and the Antelope Valley, one day after pop-up thunderstorms and lightning strikes prompted a temporary shutdown of operations at some local airports, including LAX.

“There will be noticeable cooling today followed by a slow warming trend that will last through the Labor Day weekend,” the National Weather Service said Tuesday morning. The weather service said a slight chance of thunderstorms will develop over most of the mountains and the steering flow will push them into the Antelope Valley, with the best chance (40%) occurring over the eastern San Gabriel Mountains.

“These storms look to be fairly high-based which means the principle hazards will be downburst winds and dry lightning,” the N

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