'Instability' over Southern California driving chance for afternoon thunderstorms, showers
Briefly

We have a low pressure system that's kind of sitting out over Arizona right now," said Kristan Lund, a National Weather Service meteorologist in Oxnard. "This will drift a little bit westward and it will bring some colder temperatures aloft ... and instability."
There's a lot of energy wrapping around that low pressure [system], and as that gets into our area this afternoon, we are expecting additional rounds of showers and thunderstorms," said Casey Oswant, a National Weather Service meteorologist in San Diego.
Read at Los Angeles Times
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