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California Flood Stories

3,441 first-hand accounts of flood events in California, ranked by impact. Each is a NOAA-written narrative of the moment.

Flash Flood$30.0M damage

Imperial, CA · Sep 1, 2023

A deep southerly fetch of rich moisture up from the Gulf of California led to scattered to widespread heavy rainfall in Imperial and eastern Riverside counties during the afternoon of the 1st.

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Flash Flood$3.5M damage

San Bernardino, CA · Sep 4, 1997

A severe thunderstorm packing torrential rains and golf ball size hail pummelled the Mill Creek Basin and the Yucaipa Ridge, in the San Bernardino Mountains, sending flood waters rushing down Mill and Little San Gorgonio Creeks.

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Flash Flood$2.5M damage

Imperial, CA · Aug 25, 2025

The environment across southeast California on August 25th was primed for strong to severe thunderstorms with very moist and unstable conditions in place.

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Flood$10.0M damage

Merced, CA · Jan 9, 2023

A strong low pressure system moved through central California on January 9 and 10. This system picked up a deep moisture fetch of tropical origin while tracking rapidly eastward across the Pacific and produced widespread heavy precipitation across the area between the morning of…

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Flood$4.0M damage

Imperial, CA · Jan 22, 2024

A shortwave trough moving across the Desert Southwest combined with well-above normal moisture, with precipitable water values peak at 1.0-1.2, resulted in a large swath of rain with embedded thunderstorms moving across portions of southeast CA during the late morning and…

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Flood$5.5M damage

Tulare, CA · Jan 10, 2023

A strong low pressure system moved through central California on January 9 and 10. This system picked up a deep moisture fetch of tropical origin while tracking rapidly eastward across the Pacific and produced widespread heavy precipitation across the area between the morning of…

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Flood$549.0M damage

Butte, CA · Feb 12, 2017

Additional heavy rain brought widespread flooding of small streams and rivers, with some flooding of main stem rivers. Wet conditions from previous storms brought saturated ground and elevated reservoirs, with flood control releases.

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Flash Flood$70.0M damage

Riverside, CA · Feb 14, 2019

A major atmospheric river impacted Southern California February 13th through 15th bringing heavy rain and high winds. Over the course of 48 hours, many mountain locales recorded 8 to 10 inches of rain, with Palomar Mountain (San Diego County) recording over 10 inches of rain in…

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Flood$3.0M damage

San Bernardino, CA · Dec 24, 2025

A very strong area of low pressure, tapped into an atmospheric river driving up subtropical moisture, produced substantial rainfall across southern California.

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Flash Flood$4.0M damage

San Bernardino, CA · Sep 12, 2022

September 12 flash flood and debris and surveyed areas. Debris flow Oak Glen Potato Canyon Birch creek (caught on video time lapse) which as 100,000 cubic yards of debris. Debris flow Valley of the Falls on Prospect street (death) up to 8 feet high with large boulders.

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Flood$1.5M damage

San Bernardino, CA · Dec 24, 2025

A very strong area of low pressure, tapped into an atmospheric river driving up subtropical moisture, produced substantial rainfall across southern California.

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Flood$300K damage

San Bernardino, CA · Feb 11, 2003

A warm wet storm dropped 5 to 10 inches of rain over the mountains and 2 to 4 inches across the valleys and coast over a three day period. Parts of Interstate 215 near Devore, and Interstate 15 in Fontana were flooded.

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Flood$1.0M damage

Tulare, CA · Jan 10, 2023

A strong low pressure system moved through central California on January 9 and 10. This system picked up a deep moisture fetch of tropical origin while tracking rapidly eastward across the Pacific and produced widespread heavy precipitation across the area between the morning of…

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Flood$1.0M damage

Tulare, CA · Jan 10, 2023

A strong low pressure system moved through central California on January 9 and 10. This system picked up a deep moisture fetch of tropical origin while tracking rapidly eastward across the Pacific and produced widespread heavy precipitation across the area between the morning of…

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Flash Flood$43.0M damage

Tuolumne, CA · Mar 22, 2018

Torrential rain from an atmospheric river with locally heavy convective showers brought flash flooding to portions of the northern Sierra and Motherlode foothills.

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Flood$395K damage

Glenn, CA · Feb 4, 2024

A major winter storm moved in from the south on February 4th, bringing heavy rain, strong winds, thunderstorms and heavy mountain snow through February 7th. Damaging winds brought down trees and caused widespread power outages.

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Flood$3.5M damage

San Benito, CA · Jan 27, 2021

A plume of moisture from the tropical Pacific brought an Atmospheric River to the Bay Area January 26th-29th. This system generated heavy rain rates causing flooding and debris flows over area burn scars as well as 15 to 20 inches of rain in the Santa Lucia Mountains.

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Flash Flood$15.0M damage

Riverside, CA · Feb 14, 2019

A major atmospheric river impacted Southern California February 13th through 15th bringing heavy rain and high winds. Over the course of 48 hours, many mountain locales recorded 8 to 10 inches of rain, with Palomar Mountain (San Diego County) recording over 10 inches of rain in…

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Flood$3.0M damage

San Benito, CA · Jan 27, 2021

A plume of moisture from the tropical Pacific brought an Atmospheric River to the Bay Area January 26th-29th. This system generated heavy rain rates causing flooding and debris flows over area burn scars as well as 15 to 20 inches of rain in the Santa Lucia Mountains.

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Flood$2.5M damage

San Benito, CA · Jan 27, 2021

A plume of moisture from the tropical Pacific brought an Atmospheric River to the Bay Area January 26th-29th. This system generated heavy rain rates causing flooding and debris flows over area burn scars as well as 15 to 20 inches of rain in the Santa Lucia Mountains.

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Flood$500K damage

Fresno, CA · Jan 9, 2023

A strong low pressure system moved through central California on January 9 and 10. This system picked up a deep moisture fetch of tropical origin while tracking rapidly eastward across the Pacific and produced widespread heavy precipitation across the area between the morning of…

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Flash Flood

San Bernardino, CA · Oct 7, 1997

Localized heavy rain developed over the San Bernardino Mountains in association with a fast-moving cold front and sharp, low pressure trough aloft. Between 1.5 and 2.0 inches of rain fell on a recently burned area southwest of Running Springs.

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Flash Flood$10.0M damage

Riverside, CA · Feb 14, 2019

A major atmospheric river impacted Southern California February 13th through 15th bringing heavy rain and high winds. Over the course of 48 hours, many mountain locales recorded 8 to 10 inches of rain, with Palomar Mountain (San Diego County) recording over 10 inches of rain in…

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Flash Flood$200K damage

San Diego, CA · Jan 22, 2024

Historic flooding occurred on January 22nd. Heavy rainfall occurred between 8 am and noon across western San Diego county. The heaviest rainfall occurred between 9 am and 11 am in the east side of the city of San Diego in Encanto and Lemon Grove to Spring Valley.

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