By Reginald Stanley. Posted February 14, 2019, 8:24 PM.

Numerous daily rainfall records were broken across the WeatherCurrents network and elsewhere in the region Thursday, in the event of a major atmospheric river which had tapped into deep tropical moisture.

Thursday storm totals have come in between 1 and 6 inches since midnight, through 815 PM Thursday evening. The highest total was 5.29 inches recorded in De Luz, far exceeding the previous wettest day of January 22nd, 2017 when 4.06 inches fell there. In South Temecula, where precipitation records date back a few years further (to 2000) - the record-wettest day of November 30th, 2007, when 4.23 inches fell, was eclipsed by an impressive 5.08 inches Thursday. Very high totals were also observed in Anza, Fallbrook, Lake Elsinore, Murrieta, Hemet and San Jacinto. In East Highland, over 3 inches of rainfall had been reported Thursday morning (courtesy of Peter Michas).

Outside of the WeatherCurrents network, the National Weather Service reported very high 24-hour rainfall totals across San Diego County. The most impressive anomaly occurred at Palomar Observatory, a typically wet mountain location. Palomar Observatory experienced its wettest day in recorded history on Thursday, where a titanic 10.10 inches fell - eclipsing the previous 24-hour rainfall record of 9.58 inches set back in 1901 (!), shattering a 118 year-old record.

Widespread flash flooding resulted from the deluge Thursday, particularly effecting recent burn areas such as the Holy Fire burn area, as well as low-lying areas near rivers and creeks. The rain had mostly ended by 4 PM local time, with only residual showers and drizzle effecting some areas afterward. Rain amounts generally decreased north of Los Angeles, as reflected in the relatively low storm totals recorded in Simi Valley and Pinon Hills. At this time, no additional heavy rain is forecast, however isolated showers may continue into Friday.