The following events were reported: Debris Flow, Flood. These occurred near station USW00023188, approximately 16.2616 km away, between 2012-12-13 06:00:00 and 2012-12-13 12:00:00. The flood was caused by Heavy Rain. Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 15000.0 and crop damage of 0.0. Episode Narrative: A cold low pressure system developed in the Gulf of Alaska and deepened as it dropped south along the West Coast, before closing off and slowing as it moved inland over southern California on the 13th. The main front with this system brought widespread light to moderate precipitation on the 13th into the morning of the 14th. A secondary system, right behind the departing low, moved through the area the evening of the 14th through the morning of the 15th, bringing another, yet lighter, round of precipitation. Most coastal and inland locations received between 0.50 and 2 inches of rain, locally more where heavier showers trained. The coastal slopes of the San Bernardino Mountains received up to 3 inches of rain. Several road closures were in effect due to flooding and stalled vehicles, including areas in southwest San Diego County like Mission Bay and Midway. The heavy rain, along with astronomical high tides of almost 8 feet, resulted in areas of coastal flooding in Orange County near Seal and Sunset Beaches, where water was up to garages and covered all lanes of the Pacific Coast Highway on the 13th and halfway across that roadway on the 14th. The observed tide was about 3 to 6 inches higher than the predicted tide. The San Diego lifeguard water rescue team was busy retrieving several stranded motorists and one man stranded on a sandbar in the middle of the Tijuana River. Flooding also closed one road access to Fashion Valley Mall when the San Diego River reached a crest of 6.59 feet. The 1.56 inches of rain that fell at Lindbergh Field broke the previous daily record of 0.47 inches for December 13th. The snow level lowered to 4000-4500 feet late on the 13th, resulting in several inches of snow above that level. Most locations between the snow level and around 6000 feet received a trace to 4 inches of snow. Above 6000 feet, amounts were up to 10 inches, locally higher. The greatest amount reported was 17 inches at Running Springs in San Bernardino County. Most Big Bear locations received around 6 to 8 inches. In San Diego County, Cuyamaca received 4 inches of snow, while Julian received 2 inches. Most of the snow fell on the night of the 13th, with additional light amounts on the 14th-15th in the San Bernardino County mountains. A cold low pressure system developed in the Gulf of Alaska and deepened as it dropped south along the West Coast, before closing off and slowing as it moved inland over southern California on the 13th. Event Narrative: An 8-ton boulder, measuring approximately 5 feet by 6 feet, was dislodged by rain-soaked ground and rolled down a hillside, through the garage of a house iin the 13000 block of Vian Road in Poway. The boulder ruptured a water line and a propane line. Media reports road closures and stalled cars at the intersection of Midway and Rosecrans. At least 5 motorists were trapped in their vehicles and had to be rescued by the lifeguard water rescue team. Roadway flooding was also reported along Sports Arena and West Mission Bay Drive, as well as northbound Interstate 5 and Garnet, where one vehicle was stuck in water. Lifeguard rescue crews retrieved a man trapped in his stalled vehicle along Ingraham just south of Sea World. CHP reported two highway ramp closures due to flooding: the I-5 northbound onramp at 28th Street and the off ramp at SR-163 and Washington. Flooding also reported on northbound I-5 at the Balboa off ramp. Several mudslides including one on south Interstate 5 at Balboa Avenue and another on Regents Road near SR 52, where mud was covering all lanes at 0500 PST.