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Alameda County, California
Tornadoes, hail, floods and severe storms recorded here between 1964 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
3
Tornado reports
20
Hail reports
179
Floods since 1996
241
All events
3
Deaths
$25.5M
Property damage
Tornado paths in Alameda County
The part of each tornado’s path NOAA recorded in this county, 2 in all. Zoom in and the paths widen to their surveyed width.
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Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
The roof of a warehouse on 650 85th Ave in Oakland collapsed at 3:20 AM. A 57-year old man was struck by falling debris and died; a woman suffered a broken nose. KTVU television reported that city inspectors found that water had been ponding on the roof and drains were not proper…
Heavy rain caused many vehicle collisions in the San Francisco East Bay area on Saturday. One crash in particular resulted in a vehicle carrying six passengers flipping into the canal that splits Hegenberger Expressway near Hamilton Street in Oakland. The nineteen year old male d…
rain slick road and poor visibility caused auto accident
Damage dollar amounts is a low estimate. Impacts are not fully known, but any individual car crash would likely exceed this amount.
Flood Flood
One foot of water was reported on the offramp from westbound Interstate 980 to Jackson Street.
Flood Flood
Onramp from Park Boulevard to northbound California Highway 13 was flooded.
Flood Flood
The onramp from 98th Avenue to southbound Interstate 880 was flooded.
Flood Flood
Roadway flooding reported at the Fairmont Drive onramp to eastbound Interstate 580, with reports of water flowing downhill.
Flash Flood Flash Flood
Vehicle stuck in three feet of water on westbound Interstate 580 west of 35th Avenue.
Flood Flood
Roadway flooding reported on the transition between westbound Interstate 80 and eastbound Interstate 580.
Flood Flood
Flooding was reported on all lanes of eastbound Interstate 580 at Grand Avenue.
Flood Flood
Flooding was reported on the number 2 and 3 lanes of southbound Interstate 238 at East 14th Street.
Flood Flood
Two vehicles were stuck in floodwaters on eastbound Castro Valley Boulevard at Grove Way.
Flood Flood
Around 1 foot of water was reported on the onramp from Buchanan Street to westbound Interstate 80.
Flood Flood
Four to six inches of water were reported on the offramp from eastbound Interstate 580 to West MacArthur Boulevard.
Flood Flood
Four to six inches of water were reported on eastbound Interstate 580 at Harrison Street.
Flood Flood
Flooding was reported on northbound Interstate 880 around a half mile south of 5th Street.
Flood Flood
Roadway flooding was reported in multiple locations in downtown Oakland, including the Jackson St onramp to northbound Interstate 880, the transition between northbound Interstate 880 to Interstate 980, and the transition between westbound Interstate 580 to eastbound California H…
Flood Flood
Flooding was reported in the right three lanes of eastbound Interstate 580 and the offramp to Redwood Road.
Flood Flood
Roadway flooding was reported on the right lane of northbound Interstate 880 just south of Winton Avenue.
Flood Flood
Lane number 4 was flooded on the connector between northbound Interstate 238 and southbound Interstate 880.
Flood Flood
Around 6 inches of water covered the entire exit lane on the offramp from northbound Interstate 880 to Broadway.
Flood Flood
Flooding was reported on eastbound Interstate 580 at Harrison Street near Oakland.
Flood Flood
Two right lanes of southbound Interstate 880 flooded under the overpass carrying State Route 92.
Flood Flood
Floodwaters 3 inches deep along northbound Interstate 880 at Broadway.
Flood Flood
Connector between westbound Interstate 580 and eastbound State Highway 24 partially flooded.
Flood Flood
Mud and debris on the onramp from 7th Street to southbound Interstate 880.
Flood Flood
Roadway flooding reported on southbound Crow Canyon Road just north of Norris Canyon Road.
Flood Flood
Water was 2 inches deep along northbound Interstate 880 at the 66th Avenue offramp.
Flood Flood
Flooding was reported in a lane on Interstate 238.
Flood Flood
Roadway flooding was reported on Interstate 580 near Emeryville.
Thunderstorm Wind Thunderstorm Wind
A 59 mph gust was recorded at the Oakland International Airport at 5:51 AM Saturday.
Flood Flood
Connector between southbound Interstate 680 and eastbound Interstate 580 was flooded.
Flood Flood
Lanes 3 and 4 of eastbound Interstate 580 flooded.
Heavy Rain Heavy Rain
The Oakland Museum COOP station recorded a new daily record rainfall of 2.46 inches for November 22.
Heavy Rain Heavy Rain
The Livermore COOP station recorded a new daily record rainfall of 0.67 inches for November 22.
Flood Flood
Roadway flooding reported on I-880 near Market Street offramp.
Flood Flood
Roadway flooding on 580 W and Ashby Avenue offramp. Water is up to door panel on vehicles.
Flood Flood
Water blocking lanes 1-2 of WB 580 just east of SR24.
Flood Flood
Roadway flooding reported at 7th and Ashby Avenue. Caused traffic issues and collisions per Emergency Manager.
Flood Flood
Roadway flooding reported at W Macarthur Boulevard onramp to WB 580. Multiple cars are stuck in water on the onramp.
Flood Flood
Vehicle stuck in water blocking the onramp from MacArthur Blvd to EB I 580.
Flood Flood
One to three feet of flooding was reported on the onramp from MacArthur to Eastbound Interstate 580.
Hail Hail
Approximate location. Pea-sized hail was reported in the Walnut Creek area via social media.
Flood Flood
The onramp from Crow Canyon Road to southbound Interstate 680 was flooded.
Flood Flood
Both offramps from Interstate 80/580 to Ashby Avenue were flooded.
Flood Flood
A vehicle was stuck in water on eastbound Interstate 580 near Castro Valley, with lanes 4 and 5 flooded.
Flood Flood
Roadway flooding was reported at the High Street onramp to northbound Interstate 880.
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 4 | 0 |
| 2025 | 16 | 0 |
| 2024 | 33 | 0 |
| 2023 | 8 | 0 |
| 2022 | 3 | 0 |
| 2021 | 7 | 0 |
| 2020 | 16 | 0 |
| 2019 | 31 | 0 |
| 2018 | 30 | 0 |
| 2017 | 38 | 0 |
| 2016 | 2 | 0 |
| 2015 | 2 | 0 |
| 2014 | 5 | 0 |
| 2012 | 3 | 0 |
| 2011 | 1 | 0 |
| 2010 | 2 | 0 |
| 2009 | 5 | 0 |
| 2008 | 1 | 0 |
| 2006 | 1 | 0 |
| 2005 | 1 | 0 |
| 2002 | 1 | 0 |
| 1999 | 2 | 0 |
| 1998 | 11 | 0 |
| 1997 | 7 | 0 |
| 1996 | 4 | 0 |
| 1994 | 1 | 1 |
| 1992 | 1 | 1 |
| 1986 | 1 | 0 |
| 1983 | 1 | 0 |
| 1982 | 1 | 1 |
| 1974 | 1 | 0 |
| 1964 | 1 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Alameda County, measured to its path.
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