Dust Storm — San Diego County Deserts, California

2021-07-30 · San Diego County Deserts, California

Event narrative

Twitter report with video of heavy blowing dust in Borrego Springs. Corresponding peak wind was 30 mph from the south-southeast at approximately 7 pm PDT. Minimum visibility unknown. Duration estimated.

Wider weather episode

Enhanced monsoonal moisture surged into Southern California, producing heavy thunderstorms across the San Bernardino County Mountains, the Riverside County Mountains and the San Diego County Mountains. A significant debris flow occurred on July 30 across northern portions of the El Dorado Burn Scar, with debris covering Highway 38.

Source: NOAA Storm Events Database, event_id 976818. Narrative written by the NWS forecast office that issued the report.