Strong Wind — Apple and Lucerne Valleys, California

2023-01-16 · Apple and Lucerne Valleys, California

Event narrative

Strong winds resulted in a downed tree in Valley Center, blocking all lanes of traffic at the intersection of Valley Center Road and Mac Tan Road.

Wider weather episode

The last in a series of atmospheric rivers impact Southern California January 14-16. Widespread heavy rainfall occurred in back-to-back two waves, with the first occurring the afternoon of January 14 into the early morning hours on January 15, and the second occurring the night of January 15 through January 16.

The first storm system resulted in numerous reports of flooding in San Diego County, Orange County and Riverside County and high-elevation snow in the mountains of San Bernardino and Riverside Counties. Rainfall amounts generally ranged from 1 to 2 inches for the coast, 1 to 2.5 inches in the valleys, 2 to 5 inches in the mountains and up to one-half of an inch in the deserts.

The second, colder system again produced widespread moderate to heavy rainfall, with the heaviest rain focusing on San Diego County. Many reports of flooding were received in San Diego County, with numerous swiftwater rescues performed, with 19 alone by San Diego City. The San Diego River overflowed, with the highest impacts reported in Fashion Valley on January 16, with a dozen swiftwater rescues performed before dawn. Nearby areas in Hotel Circle were evacuated due to the threat of flooding.

Impressive precipitation amounts were reported from the two back-to-back system, with 2 to 4 inches of rain received at the coast, 2 to 5 inches for the inland valley and 3 to 8+ inches for the mountains.

Source: NOAA Storm Events Database, event_id 1069199. Narrative written by the NWS forecast office that issued the report.