Monday morning’s crisp weather — a picturesque backdrop for the 134th Rose Parade in Pasadena — isn’t expected to last, with rainfall set to start as soon as this evening, according to Southland forecasters.
Part of a new wave of storms expected this week, the National Weather Service predicts rain could begin falling in Los Angeles and Orange County Monday night and continue into Tuesday morning. Heavier rain and strong winds are forecast as part of a stronger Pacific storm system expected to impact the Southland Wednesday into Thursday.
Weather conditions have prompted a high surf advisory in Orange County and San Diego County through 6 p.m. Monday. Various wind advisories also are in place from 4 to 6 p.m. Monday in mountain, valley and desert regions of San Diego, San Bernardino and Riverside counties.
Health officials are warning people to avoid entering ocean water near discharging storm drains or rivers due to possible bacterial infection. The Los Angeles County Department of Public Health issued an ocean water quality rain advisory that will be in effect until at least 7 a.m. Tuesday.
Health officials noted that stormwater runoff that reaches the ocean can carry bacteria, chemicals, debris trash and other health hazards. People who come in contact with impacted water in the ocean could become ill, health officials said.