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Olney, MD Tornado History — 120 Tornadoes Since 1950

Maryland · 25-mile radius · NOAA Storm Prediction Center

How many tornadoes has Olney, MD had?

Olney has had 120 tornadoes on record within 25 miles since 1950, including 5 strong to violent (EF3+) tornadoes.

When was the most recent tornado near Olney?

The most recent tornado within 25 miles of Olney was an EF0 on June 18, 2025.

When is tornado season in Olney?

June is historically the peak month for tornadoes near Olney, with 27 on record. April through June account for 55 of the 120 tornadoes on record near Olney.

At a Glance

Tornadoes Since 1950
120
Within search radius
Violent (EF3+)
5
4.2% of total
Peak Month
June
27 on record
Per Year Avg
1.6
Across 76 years

Recent Tornado Activity Near Olney

The last 20 years of confirmed tornadoes within 25 miles — 60 total, averaging 3.0 per year over this window.

2026 0+1 prelim
2025 1
2024 5
2023 1
2022 3
2021 6
2020 3
2019 4
2018 2
2017 4
2016 1
2015 2
2014 2
2013 1
2012 10
2011 7
2010 1
2009 4
2008 3
2007 0

Striped bars mark preliminary reports not yet confirmed by NWS survey — excluded from the confirmed counts.

Preliminary tornado reports near Olney since December 29, 2025

This 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Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete.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.

Preliminary EF0° March 11, 2026
1 NE Marriottsville, Carroll County, MD
EF0. Peak Wind 80 mph. Path Width 75 yards. Path length 0.3 miles. (LWX)

Within 25 miles of Olney. Quoted text is the report narrative exactly as filed. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.

What storm spotters reported near Olney

2 local storm reports have been filed within 25 miles of Olney and since confirmed into the NOAA archive, the earliest on June 18, 2025 and the most recent on June 19, 2025. They are already counted in the Olney totals above; quoted below is the narrative each reporting office filed at the time.

EF0° June 19, 2025
Odenton, Anne Arundel County, MD
NWS Storm Survey confirmed an EF-0 tornado briefly touched down in Odenton... MD at approximately 440 pm... with peak winds estimated at 80mph. Path length was 0.1 mile (LWX)
EF0° June 18, 2025
Odenton, Anne Arundel County, MD
Corrected for time/date. NWS Storm Survey confirmed an EF-0 tornado briefly touched down in Odenton... MD at approximately 215 pm... with peak winds estimated at 80mph. (LWX)

Source: National Weather Service and trained-spotter local storm reports, relayed by the NOAA Storm Prediction Center.

Tornadoes by Decade

1950s 2
1960s 7
1970s 11
1980s 2
1990s 26
2000s 19
2010s 34
2020s 19

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.

EF0 53
EF1 51
EF2 11
EF3 5

Tornadoes by Month

Jan 0
Feb 4
Mar 2
Apr 14
May 14
Jun 27
Jul 22
Aug 10
Sep 12
Oct 9
Nov 6
Dec 0

Casualties on Record Near Olney

3 fatalities have been recorded within 25 miles of Olney since 1950, across 2 events. 125 injuries have been reported across all events. 2001 was the deadliest year on record near Olney.

The deadliest single event was an F3 on September 24, 2001, which caused 2 fatalities along a 17.5-mile track.

Notable Tornadoes Near Olney

Deadliest Tornado
F3 on September 24, 2001 — 2 fatalities, 17.5 mi path, 200 yd wide.
Costliest Tornado
F3 on April 1, 1973 — est. ~$27.5M (NOAA damage class, pre-1996 estimate).
Widest Tornado
EF0 on June 21, 2016 — 500 yards wide.
Longest Path
EF0 on June 13, 2013 — 20.1 mile track.
Most Recent
EF0 on June 18, 2025.

What the record shows near Olney

The 2010s were the busiest decade near Olney, with 34 of the 120 confirmed tornadoes within 25 miles; the 2020s have produced 19 so far. The Olney record runs from the 1950s to today.

Of the tornadoes rated near Olney, 104 reached EF0 or EF1 and 16 reached EF2 or stronger. The most intense on record near Olney is rated EF3, of which 5 are logged.

Across the last 20 years Olney has averaged 3.0 confirmed tornadoes a year within 25 miles, 60 in total. 2012 was the busiest of them with 10, and 2 of those years passed with none at all.

Frequently Asked Questions

How many tornadoes has Olney, MD had?
Since 1950, 120 tornadoes have been recorded within 25 miles of Olney. Data source: NOAA Storm Prediction Center.
What was the deadliest tornado near Olney?
The deadliest tornado on record within 25 miles of Olney was an F3 on September 24, 2001, which caused 2 fatalities.
When is tornado season in Olney?
June is historically the peak month for tornadoes near Olney, with 27 tornadoes on record. Tornadoes can occur any time of year, but spring months (April–June) generally see the highest activity across most of the central and southern United States.
When was the most recent tornado near Olney?
The most recent tornado within 25 miles of Olney was an EF0 on June 18, 2025.
How do I get tornado warnings for Olney?
Vortex delivers real-time tornado warnings, severe thunderstorm alerts, and SPC outlook updates for any US location via push notification and phone call. Alerts are sourced directly from the National Weather Service and updated within seconds of issuance.

Official Resources

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