Flood Potential Outlook
Issued by NWS San Diego, CA
Issued by NWS San Diego, CA
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959 FGUS76 KSGX 210908 ESFSGX Hydrologic Forecast for Extreme Southwestern California National Weather Service San Diego CA 208 AM PDT Thu Aug 21 2025 ...Flash Flood Potential Index for Extreme Southwestern California... .SYNOPSIS... Dry weather will continue today though with some afternoon clouds over the mountains. Monsoonal moisture will increase into the weekend with increasing chances for showers and thunderstorms over the weekend, most likely during the afternoon and early evening, and mostly for the mountains and deserts. $$ CAZ055-056-058-220230- San Bernardino County Mountains-Riverside County Mountains- San Diego County Mountains- Including the cities of Crestline, Lake Arrowhead, Big Bear City, Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, Julian, and Pine Valley 208 AM PDT Thu Aug 21 2025 .TODAY...None...no flash flooding is expected. .FRIDAY...Low...the risk of flash flooding is minimal. $$ CAZ060>062-065-220230- Apple and Lucerne Valleys-Coachella Valley- San Diego County Deserts-San Gorgonio Pass near Banning- Including the cities of Victorville, Hesperia, Apple Valley, Lucerne Valley, Indio, Palm Springs, Cathedral City, Palm Desert, Palm Desert Country, La Quinta, Coachella, and Borrego Springs 208 AM PDT Thu Aug 21 2025 .TODAY...None...no flash flooding is expected. .FRIDAY...Low...the risk of flash flooding is minimal. $$ CAZ048-050-220230- San Bernardino and Riverside County Valleys-The Inland Empire- San Diego County Valleys- Including the cities of Riverside, San Bernardino, Ontario, Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido, El Cajon, San Marcos, La Mesa, Santee, and Poway 208 AM PDT Thu Aug 21 2025 .TODAY...None...no flash flooding is expected. .FRIDAY...None...no flash flooding is expected. $$ CAZ043-057-552-554-220230- San Diego County Coastal Areas-Santa Ana Mountains and Foothills- Orange County Coastal Areas-Orange County Inland Areas- Including the cities of Oceanside, Vista, Carlsbad, Encinitas, Chula Vista, National City, San Diego, Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, San Clemente, Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 208 AM PDT Thu Aug 21 2025 .TODAY...None...no flash flooding is expected. .FRIDAY...None...no flash flooding is expected. $$ 17