Altamont, OR Tornado History — 6 Tornadoes Since 1950
How many tornadoes has Altamont, OR had?
Altamont has had 6 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Altamont?
The most recent tornado within 25 miles of Altamont was an EF0 on May 28, 2019.
When is tornado season in Altamont?
May is historically the peak month for tornadoes near Altamont, with 4 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 Altamont
The last 20 years of confirmed tornadoes within 25 miles — 2 total, averaging 0.1 per year over this window.
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 Altamont been fatal?
No fatalities are on record within 25 miles of Altamont from any of the 6 tornadoes since 1950. NOAA Storm Prediction Center records.
Notable Tornadoes Near Altamont
About Tornadoes in Altamont
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.
Altamont, Oregon has experienced six documented tornadoes within a 25-mile radius since 1950, according to the NOAA Storm Prediction Center. All of these events have been relatively weak, with four rated EF0 and two rated EF1 on the Enhanced Fujita scale, which measures tornado intensity based on damage. None of the tornadoes on record have resulted in fatalities.
The temporal distribution of these tornadoes shows sporadic activity across the decades, with single events recorded in the 1950s, 1960s, and 1990s, two tornadoes in the 2000s, and one in the 2010s. May has been the most active month by a significant margin, accounting for four of the six total events. This spring peak aligns with broader national patterns, when atmospheric conditions most favorable for tornado development—including strong wind shear and instability—occur more frequently as warm, moist air masses interact with cooler systems.
The most significant tornado in terms of path characteristics occurred on May 23, 1958, when an F1 tornado tracked 2.7 miles with a maximum width of 50 yards, though it caused no reported property damage. The costliest event on record was an F0 tornado on May 31, 1995, which resulted in $27,500 in property damage despite traveling only 0.1 miles with a maximum width of 10 yards. The most recent tornado touched down on May 28, 2019, an EF0 event with a 10-yard width that caused no damage or injuries.
The relatively low frequency and intensity of tornadoes near Altamont reflect the Pacific Northwest's generally less favorable conditions for severe convective storms compared to regions farther east. While tornadoes can and do occur in Oregon, the state's maritime climate and topography typically limit the development of the large-scale supercell thunderstorms that produce the most violent tornadoes.