Cumulonimbus Clouds, or thunderheads, are most likely to form over San Diego County’s deserts and mountains during the latter part of the summer season, beginning about late July. The clouds appear by midafternoon — often …
July 19, 2021
Cumulonimbus clouds viewed over mountains from National Weather Service, San Diego
Posted May 4, 2021
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San Diego desert and mountain thunderheads pop up in afternoon