Active Weather Alerts
Flash Flood Warning
Issued: 9:57 PM Jul. 18, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 4 PM PDT THIS AFTERNOON FOR SAN BERNARDINO COUNTY... At 257 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. The expected rainfall rate is 0.25 to 0.5 inches in 1 hour. Additional rainfall amounts up to 0.25 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... Hesperia, Lake Arrowhead, Hwy 173 Between Lake Arrowhead And Hesperia, Skyforest, Cedar Glen and Twin Peaks. 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...RADAR INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...0.25-0.5 INCHES IN 1 HOUR
Flash Flood Warning
Issued: 9:50 PM Jul. 18, 2025 – National Weather Service
The National Weather Service in San Diego has issued a * Flash Flood Warning for... San Bernardino County in southern California... * Until 445 PM PDT. * At 250 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.75 and 1.5 inches of rain have fallen. The expected rainfall rate is 0.75 to 1.5 inches in 1 hour. Additional rainfall amounts of 0.5 to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Eastern Lucerne Valley and Johnson Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && FLASH FLOOD...RADAR INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...0.75-1.5 INCHES IN 1 HOUR
Flash Flood Warning
Issued: 9:27 PM Jul. 18, 2025 – National Weather Service
The National Weather Service in San Diego has issued a * Flash Flood Warning for... San Bernardino County in southern California... * Until 430 PM PDT. * At 227 PM PDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.75 and 1.25 inches of rain have fallen. The expected rainfall rate is 0.75 to 1.25 inches in 1 hour. Additional rainfall amounts of 0.25 to 0.75 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Apple Valley and Lucerne Valley. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Remain alert for flooding even in locations not receiving rain. Arroyos, streams, and rivers can become raging killer currents in a matter of minutes, even from distant rainfall. && FLASH FLOOD...RADAR INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...0.75-1.25 INCHES IN 1 HOUR
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