San Diego's Weather Forecast for Thursday, December 23, 2021: Heavy Rain and Flooding Tonight

Posted at 8:33 AM, Dec 23, 2021
and last updated 2021-12-24 01:22:07-05

Showers will turn into heavy tonight, with heavy rain and isolated thunderstorms possible Friday morning.

Flash Flood Watch will begin at 7pm tonight through Friday morning, ending at noon.

It will be a warm ahead of the storms, so snow levels will stay above 7,000 feet Friday dropping to 6,500 feet Friday night. No accumulations expected in our San Diego mountains.

Rain Totals Thursday into Friday: 
 Coast/Inland: 1.5.0-3.0" 
 Mountains: 2- 6" 

The winds will become increasingly gusty tonight into tomorrow, with the strongest gusts Friday morning reaching up to 65 mph in the mountains. The rest of the county will experience winds between 20-35 mph, including the coast, valleys, and deserts. Gusty winds and heavy rain could lead to wind damage, avoid parking under trees or areas that typically flood.

Rain will taper off Friday afternoon, with the next storm system arriving on Christmas.

Our weekend storm, the second storm, will bring lighter rainfall and most of it will fall on Christmas. Light showers may linger into Sunday morning.

Christmas Rain totals: 
 Coast/Inland: 0.10 - 0.30" 
 Mountains: 0.5 - 1" 
 Deserts: T - 0.10"

Temperatures will cool down to below normal, with the cool and unsettled pattern continuing into next week and through the end of 2021.

More storms could arrive next week, the timing looks like Monday into Tuesday, then Wednesday into Thursday. Stay tune to the forecast and the chance for moderate rainfall next week.

Friday's Highs:
Coast: 60-63°
Inland: 52-60°
Mountains: 48-53°
Deserts: 64-69°

Follow ABC 10News Meteorologist Angelica Campos on Facebook & Instagram @Camposcrusher and Twitter @10NewsCampos