Mamaroneck, NY Tornado History — 42 Tornadoes Since 1950
How many tornadoes has Mamaroneck, NY had?
Mamaroneck has had 42 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Mamaroneck?
The most recent tornado within 25 miles of Mamaroneck was an EF0 on November 13, 2021.
When is tornado season in Mamaroneck?
July is historically the peak month for tornadoes near Mamaroneck, with 11 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
Recent Tornado Activity Near Mamaroneck
The last 20 years of confirmed tornadoes within 25 miles — 15 total, averaging 0.8 per year over this window.
Preliminary tornado reports near Mamaroneck since December 29, 2025
These is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
Within 25 miles of Mamaroneck. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
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
Casualties on Record Near Mamaroneck
2 fatalities have been recorded within 25 miles of Mamaroneck since 1950, across 2 events. 36 injuries have been reported across all events. 2010 was the deadliest year on record.
The deadliest single event was an EF1 on September 16, 2010, which caused 1 fatality along a 4.0-mile track.
Notable Tornadoes Near Mamaroneck
About Tornadoes in Mamaroneck
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.
Mamaroneck, New York, sits in a region where tornadoes occur less frequently than in the nation's central plains, yet the area has experienced notable tornado activity over the past seven decades. According to the NOAA Storm Prediction Center, 36 tornadoes have been recorded within 25 miles of the city since 1950, with intensity ratings ranging from EF0 to EF2 on the Enhanced Fujita scale, which measures tornado strength based on damage to structures and vegetation.
Tornado frequency in the area has varied considerably by decade. The 1970s saw the highest concentration with 12 recorded events, while the 2010s brought 9 tornadoes to the region. The 1950s and 1960s each recorded only a single tornado, and the 1980s, 1990s, and 2000s saw relatively modest activity with three to five events per decade. Through the early 2020s, two tornadoes have been documented. Most of these storms have been relatively weak, with 12 rated EF0 and 16 rated EF1, though 8 have reached EF2 intensity, capable of causing considerable damage to well-constructed buildings.
Unlike much of the country where tornado activity peaks in spring, the Mamaroneck area experiences its highest tornado frequency in September, with 10 events recorded during that month. This late-season pattern often coincides with tropical systems and strong frontal boundaries moving through the Northeast. The most significant tornado in the area's recent history occurred on September 16, 2010, when an EF1 tornado caused one fatality and $17.2 million in property damage along a 4-mile path with a maximum width of 100 yards. This event stands as both the deadliest and costliest tornado on record for the region.
The most recent tornado struck on November 13, 2021, an EF0 that traveled an exceptional 13.1 miles, making it the longest-tracked tornado in the area's recorded history despite its relatively narrow 50-yard width and $300,000 in damage. The widest tornado on record was an F1 that cut a 400-yard-wide path for 2 miles on July 19, 1971, causing $275,000 in property damage but no fatalities.