San Diego County is currently on high alert as a powerful storm system brings life-threatening flash floods, heavy rainfall, and other severe weather conditions. The National Weather Service in San Diego has issued a Flash Flood Warning effective until 11:30 a.m. this morning for the Northern San Diego County Coast and the Western Valleys, as per notifications reported by the San Diego County website and further updates shared on NWS San Diego's X post. Residents are advised not to attempt driving through flooded roadways and to stay tuned to local radio and television stations for additional information and possible warnings.
Flash Flood Warning including Oceanside CA, Carlsbad CA and Vista CA until 11:30 AM PST pic.twitter.com/WbDP7XKpJm
— NWS San Diego (@NWSSanDiego) January 22, 2024
Oceanside, Carlsbad, and Vista, CA, are among the cities included in the flash flood watch, which could become dire with the expected heavy downpour. Forecasters warn of rainfall rates potentially reaching between one-tenth and one-quarter inch per hour, resulting in significant rainfall totals. Coastal areas are anticipated to see around one inch of rain, with mountainous regions receiving up to two inches, with less in the desert regions, according to details from Hoodline.
The San Diego County region is expected to grapple, not only with the flood risks but also with additional elements of severe weather. NWS San Diego highlights a slight chance of thunderstorms continuing until this evening, with the storm system projected to move inland across Southern California and Northern Baja. Although the showers are expected to decrease by late Tuesday, the weather will remain cooler until Thursday with a warmup forecasted for Friday.
The NWS also points to challenging marine conditions, including choppy, steep, and troublesome seas due to gusty northwesterly winds tightening until Tuesday afternoon. Thunderstorms could persist on the waters until this evening, potentially ushering in erratic winds near these storms. Furthermore, 3-6 feet waves may prompt localized coastal flooding, particularly across low-lying shorelines come Tuesday and Wednesday.
Residents in Northern San Diego County and other affected areas should stay alert to changing conditions and heed all warnings issued by the National Weather Service. With the potential for rapid-onset flooding, it is crucial for the public to prioritize safety and avoid any unnecessary travel in the affected regions during this severe weather event.
