September 2, 2019 (San Diego's East County) -- A flash flood watch has been issued by the National Weather Service for portions of southern California include San Diego County's mountain and desert areas today and tonight.
Additional thunderstorms are possible Monday and Tuesday.
Runoff caused by very intense but brief rainfall can gather in arroyos and small streams as well as urban surfaces. There is a risk of mudslides and debris flows in steep terrain and in burn areas.
A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
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