The first in a spate of three storms in the forecast for the San Diego area through the coming weekend delivered widespread downpours Thursday along with some thunder and lightning.
The fast-moving storm system swept in from the northwest in the late morning and dropped anywhere from a few hundredths of an inch to nine-tenths of an inch of moisture in the county over the day, the National Weather Service reported.
The San Diego County Department of Environmental Health also issued a general rain advisory, warning county residents to avoid contact with water at all coastal beaches and bays.
Urban runoff can lead to heightened amounts of bacteria in bodies of water. County officials advised residents to avoid water contact for 72 hours after rainfall ends.
Residents can visit sdbeachinfo.com or call the county’s beach information hotline at (619) 338- 2073 for more information.
Among the highest precipitation tallies as of 4 p.m., according to the NWS, were 0.91 of an inch in Oceanside; 0.75 in Palomar and San Onofre; 0.62 in Lemon Grove; 0.61 in Carlsbad; 0.6 in Encinitas; 0.58 in La Mesa; 0.53 in Bonsall, Mission Valley and Pine Hills; and 0.52 on Birch Hill and in Fallbrook.
Other late-afternoon rainfall totals included 0.46 in San Marcos and Solana Beach; 0.45 in Chula Vista; 0.41 in Del Mar and Kearny Mesa, and at Lindbergh Field; 0.36 in Julian; 0.34 in La Jolla; 0.3 in Mission Beach; 0.28 in Escondido and Rancho Bernardo; 0.24 in Poway and San Diego Country Estates; 0.18 in Alpine, Barona and El Cajon; 0.16 in San Ysidro; 0.11 in Pine Valley; 0.08 in Descanso and on Dulzura Summit; 0.07 in San Felipe; 0.06 on Otay Mountain; and 0.03 in Borrego Palm Canyon.
The intensity of the some of the cloudbursts prompted the weather service to issue an urban and small-stream flood advisory for central San Diego County through 7:30 p.m.
The alert warned of potential public hazards due to runoff and ponding water in such communities as Carlsbad, Chula Vista, El Cajon, Encinitas, La Mesa, National City, Oceanside, Poway and Vista.
A stronger unsettled atmospheric system is due to arrive Friday night, bringing heavier rainfall throughout the county until Saturday evening, according to meteorologists.
The final bout of inclement weather in the storm series will reach the region by Sunday morning and bring lighter precipitation before moving off Monday night, forecasters said.
Updated at 5:45 p.m. Jan. 31, 2019
— City News Service
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