Active Weather Alerts
Flash Flood Warning
Issued: 11:14 PM Sep. 18, 2025 – National Weather Service
The National Weather Service in San Diego has issued a * Flash Flood Warning for... The Line burn scar in... San Bernardino County in southern California... * Until 715 PM PDT. * At 414 PM PDT, Doppler radar indicated thunderstorms producing heavy rain over the Line Burn Scar. Between 0.25 and 0.5 inches of rain have fallen. The expected rainfall rate is up to 0.75 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. Excessive rainfall over the burn scar will result in debris flow. The debris flow can consist of rock, mud, vegetation and other loose materials. HAZARD...Flash flooding caused by thunderstorms in and around the Line Burn Scar. SOURCE...Radar. IMPACT...Flooding of areas in and around the Line Burn Scar. * Some locations that will experience flash flooding include... San Bernardino, Yucaipa, Highland, Running Springs, Angelus Oaks, Hwy 18 Between Running Springs And Big Bear, Mountain Home Village, Hiwy 330 Between San Bernardino And Running Springs, Hwy 18 Between Running Springs And Skyforest and Seven Oaks. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks...streams...and ditches in the Line Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters...climb to safety. Move away from recently burned areas. Life-threatening flooding of creeks, roads and normally dry arroyos is likely. The heavy rains will likely trigger rockslides, mudslides and debris flows in steep terrain, especially in and around these areas. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...0.75 INCHES IN 1 HOUR
Flood Advisory
Issued: 11:03 PM Sep. 18, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 559 PM PDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of Southwest California, including the following county, San Bernardino. * WHEN...Until 559 PM PDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 403 PM PDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... Apple Valley, Lucerne Valley and Hwy 247 Between Lucerne Valley And Barstow. - https://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Flash Flood Warning
Issued: 10:55 PM Sep. 18, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 515 PM PDT THIS AFTERNOON FOR SAN BERNARDINO COUNTY... At 355 PM PDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 0.25 to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Apple Valley, Lucerne Valley, Big Bear Lake, Hwy 18 Between Running Springs And Big Bear and Fawnskin. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && FLASH FLOOD...RADAR AND GAUGE INDICATED
Flash Flood Warning
Issued: 10:38 PM Sep. 18, 2025 – National Weather Service
The National Weather Service in San Diego has issued a * Flash Flood Warning for... Riverside County in southern California... San Bernardino County in southern California... * Until 645 PM PDT. * At 338 PM PDT, local law enforcement reported thunderstorms producing heavy rain in near Forest Falls. Between 1 and 1.75 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Law enforcement reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, low-lying areas and canyons, highways, streets and underpasses. * Some locations that will experience flash flooding include... Mount San Gorgonio, Forest Falls, Banning, northwestern Desert Hot Springs, Hwy 38 Between Yucaipa And Onyx Summit, Whitewater and Morongo Indian Reservation. This replaces a Flood Advisory for this area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && FLASH FLOOD...OBSERVED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
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