####018009323#### FSUS46 KSGX 101040 QPSSGX Quantitative Precipitation Forecast National Weather Service San Diego CA 240 AM PST Mon Feb 10 2025 Precipitation Forecast in Inches in 6-Hour Periods... [ Beginning times for each period are in local time... ] [ For example...04Thu ] [ ...10Thu is a forecast for 4 AM to 10 AM Thursday ] [ For example...22Thu ] [ ...04Fri is a forecast for 10 PM Thursday to 4 AM Friday] ...Orange County Coastal Areas... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Huntington Beach 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.16 0.08 0.15 Newport Beach 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.18 0.09 0.15 Laguna Beach 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.20 0.09 0.16 San Clemente 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.15 0.25 0.11 0.18 ...Orange County Inland Areas... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Anaheim 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.12 0.06 0.13 Fullerton 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.12 0.06 0.14 Brea 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.12 0.07 0.14 Villa Park 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.06 0.14 ...Santa Ana Mountains And Foothills... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Fremont Canyon 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.16 0.07 0.15 Silverado Canyon, 3 Mi East of Silverado 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.13 0.27 0.11 0.22 Modjeska Preserve 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.12 0.23 0.10 0.18 Santiago Peak 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.13 0.28 0.11 0.21 Santa Rosa Plateau 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.01 0.10 0.24 0.11 0.17 ...San Bernardino And Riverside County Valleys-The Inland Empire... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Ontario 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.11 0.07 0.15 San Bernardino 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.10 0.06 0.12 Beaumont 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.16 0.07 0.12 Riverside 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.10 0.05 0.11 Perris Valley Channel 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.16 0.06 0.11 Prado Dam 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.13 0.06 0.14 Temecula 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.19 0.10 0.16 Hemet 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.17 0.07 0.11 ...Riverside County Mountains... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Idyllwild 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.26 0.12 0.12 ...Coachella Valley... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Palm Springs 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.04 0.04 0.04 Thermal 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.03 ...San Bernardino County Mountains... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu San Antonio Dam 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.18 0.13 0.26 Lytle Creek 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.14 0.18 0.14 0.27 Wrightwood 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.09 0.08 0.15 Lake Arrowhead 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.13 0.10 0.18 Big Bear Lake 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.11 0.05 0.10 Big Morongo Canyon 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.05 0.03 0.05 ...Apple And Lucerne Valleys... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Hesperia 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.03 0.03 0.05 Victorville 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.02 0.04 Apple Valley 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.02 0.03 ...San Diego County Coastal Areas... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Oceanside 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.36 0.15 0.19 Miramar 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.15 0.41 0.18 0.16 San Diego International Airport 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.40 0.17 0.17 Chula Vista 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.30 0.18 0.15 San Ysidro 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.11 0.30 0.21 0.16 ...San Diego County Valleys... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Fallbrook 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.33 0.12 0.19 Rancho Bernardo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.13 0.38 0.16 0.16 La Mesa 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.34 0.19 0.16 El Cajon 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.29 0.19 0.16 ...San Diego County Mountains... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Palomar Mountain 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.39 0.22 0.23 Julian 0.00 0.00 0.00 0.00 0.01 0.03 0.00 0.03 0.13 0.35 0.25 0.23 Mount Laguna 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.02 0.09 0.23 0.20 0.21 Campo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.20 0.24 0.19 ...San Diego County Deserts... 04Mon 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 10Mon 16Mon 22Mon 04Tue 10Tue 16Tue 22Tue 04Wed 10Wed 16Wed 22Wed 04Thu Borrego Springs 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.04 0.06 $$ DISCUSSION... Dry weather will prevail through Monday. Drizzle or light showers are expected Tuesday morning west of the mountains as the marine layer deepens, but little to no accumulation expected. An Atmospheric River will impact Southern California for the middle to end of the week. Current guidance is indicating two main rounds of moisture the first on Wednesday and the second Thursday afternoon into Friday. For Wednesday through Friday there are very high chances (80-95%) of seeing at least 1 inch of rain from the coasts to the mountains, and a 40-60 percent chance of seeing at least 1 inch of rain in the deserts. The coasts and valleys also have a 40-60 percent chance to see over 2 inches with the mountains having a 70-80 percent chance for over 2 inches. Portions of the coastal slopes even have a 30-50 percent chance to see over 4 inches. Precipitation chances decrease Friday night, with dry conditions expected over the weekend. The finer details in timing and intensity of the precipitation will be worked out in the coming days. Snow levels will rapidly rise from near 5500 ft to around 7000 ft on Wednesday, but if precipitation moves in early enough, locations near 6000 ft could see some light snow accumulations before switching over to rain. From there, snow levels remain at 7500-8000 ft throughout the event, limiting the hefty snow totals to above 8000 feet. Snow levels look to fall back to 5500 ft late Friday as showers taper off. Wednesday through Friday areas above 6500 ft may see 1-3 inches of snow, but most snow accumulations will be limited to areas above 7500 ft where there is an 80% chance of at least 12 inches. $$