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**Original Text Summary:**

The remnants of Tropical Storm Mario are bringing rain and thunderstorms to San Diego’s mountains and deserts, with the heaviest rainfall expected through Thursday. A flood watch is in effect until early Friday. While rainfall will decrease into the weekend, there’s a chance of more tropical moisture returning early next week.

**News Article:**

**San Diego Braces for Peak Rainfall as Remnants of Tropical Storm Mario Lingers**

San Diego, CA – San Diego’s mountains and deserts are under a flood watch as moisture from the remnants of Tropical Storm Mario continues to impact the region. The National Weather Service (NWS) reports that the heaviest rainfall and bands of thunderstorms are expected to peak today, Thursday, with conditions gradually improving into the weekend.

A flood watch remains in effect for the mountain and desert areas until 2 a.m. Friday. Meteorologists warn that the mountains and deserts will see heavier rainfall from late morning through early evening.

“We saw significant rainfall and lightning in these areas yesterday,” said Meteorologist Greg Bledsoe, referencing a particularly strong thunderstorm detected by Doppler radar on Wednesday afternoon.

While the threat of showers and thunderstorms will diminish from late Thursday into Friday, the NWS indicates that isolated activity may still occur in the mountains and deserts on Friday afternoon.

Mario, which briefly regained tropical storm status earlier this week after weakening to a depression, is expected to weaken as it moves over cooler waters near Baja California, according to the National Hurricane Center in Miami.

While Friday is expected to be mostly dry, Meteorologist Sheena Parveen notes that computer models suggest the possibility of increased tropical moisture impacting the area again by the end of the weekend and into early next week. Residents in affected areas are urged to stay informed and monitor weather updates.

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