Stevenson Ranch, CA Tornado History — 6 Tornadoes Since 1950
How many tornadoes has Stevenson Ranch, CA had?
Stevenson Ranch has had 6 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Stevenson Ranch?
The most recent tornado within 25 miles of Stevenson Ranch was a F0 on April 1, 1999.
When is tornado season in Stevenson Ranch?
December is historically the peak month for tornadoes near Stevenson Ranch, with 2 on record. Spring through early summer (April–June) generally sees the highest activity across most of the central and southern United States.
At a Glance
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Have any tornadoes near Stevenson Ranch been fatal?
No fatalities are on record within 25 miles of Stevenson Ranch from any of the 6 tornadoes since 1950. NOAA Storm Prediction Center records.
Notable Tornadoes Near Stevenson Ranch
About Tornadoes in Stevenson Ranch
This overview was written April 23, 2026. The tornado counts and notable-event figures elsewhere on this page reflect the latest data and may differ from this summary.
Stevenson Ranch, California, has experienced six documented tornadoes within a 25-mile radius since 1950, according to the NOAA Storm Prediction Center. This relatively modest total reflects the region's location outside the nation's primary tornado corridors, where atmospheric conditions conducive to tornadic development occur less frequently than in the central and southeastern United States.
The majority of these tornadoes have been weak, with four rated EF0 on the Enhanced Fujita scale, which measures tornado intensity based on damage to structures and vegetation. One tornado reached EF1 intensity, while a single event achieved EF2 status. The most significant tornado on record occurred on November 9, 1982, when an F2 tornado carved a one-mile path with a maximum width of 150 yards, causing $2.75 million in property damage. This event stands as the costliest, widest, and longest-tracked tornado in the area's recorded history, though notably it produced no fatalities.
Tornado activity near Stevenson Ranch has varied considerably by decade, with one event recorded in each of the 1950s, 1970s, and 1980s, followed by three tornadoes during the 1990s. The most recent tornado touched down on April 1, 1999, as a brief EF0 event with a path length of just one-tenth of a mile and no associated property damage. December has been the peak month for tornado occurrence in the area, with two events recorded during that month, a pattern that differs from the spring-dominated tornado season typical of much of the continental United States.
None of the tornadoes on record within 25 miles of Stevenson Ranch have resulted in fatalities. While tornadoes remain possible in Southern California when atmospheric conditions align appropriately, the historical record demonstrates that such events have been infrequent and generally less intense than those observed in more tornado-prone regions of the country.