Valley News -

By Diane Sieker

Monsoon rains, what are they and how to stay safe


Last updated 7/27/2018 at 12:27pm

Alan Stanley

Eerie clouds form after a summer thunderstorm in Anza.

The air is humid – the temperatures soaring into the high 90s or even over 100 degrees. The stage is set for a possible summer thunderstorm. But how and why do these downpours occur on these sticky, almost unbearable days?

The season is called the monsoon and refers to the wind shift that typically begins during the first few weeks of July and runs through September. The storms that are the result of this monsoonal flow of moist air typically comes into California from the south.

The sun heats up the land and the Pacific Ocean at different rates. Land surfaces warm more rapidly than the w...

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