Thunder expected as California weather to take 'dramatic turn' this week

The weather in California this week, particularly in the Northern area, is predicted to be unsettled, and there’s even a chance of snow in some parts, making it a far cry from last week's baking heatwave. Forecasters predict temperature swings, rain and thunderstorms, and the chance of some snow in the Sierra Nevada. Slow-moving low-pressure systems are what’s driving this unpredictable weather in the state.

While such low-pressure systems can evolve into strong storms during winter, due to the weaker systems in springtime the result is likely to be less dramatic. Urgent travel warning to those flying out of U.S.



airport as a result of Trump layoffs TSA reveals 11 new carry-on items you can take at any size - here's the full list Temperatures are predicted to drop from San Francisco through to San Diego, from Tuesday onward. Thunderstorm to impact California - what part? Particularly Northern California , including San Francisco, San Jose and Napa Valley. What exactly should locals expect? Rain and light thunderstorms are expected for much of the state, and some areas in the North could even get a bit of snow.

Several inches of snow is expected to fall around Sierra Nevada later in the week. When will the cold snap begin? Cooler temperatures are expected from Tuesday onwards throughout the week. Is there anything residents need to do to prepare? It is unlikely that the thunderstorms will develop into anything severe and there are no weather warnings in place at the moment.

Northern Californians should brace themselves for cooler temperatures and some wet weather. How is this weather created? Low-pressure areas are associated with more unpredictable and changeable weather such as cloudy, windy, and possible rain or storms. High-pressure areas typically result in lighter winds and clear skies.

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