Issaquah, WA Tornado History — 6 Tornadoes Since 1950
How many tornadoes has Issaquah, WA had?
Issaquah has had 6 tornadoes on record within 25 miles since 1950, including 1 strong to violent (EF3+) tornado.
When was the most recent tornado near Issaquah?
The most recent tornado within 25 miles of Issaquah was an EF1 on September 6, 2009.
When is tornado season in Issaquah?
September is historically the peak month for tornadoes near Issaquah, with 2 on record. April through June account for 1 of the 6 tornadoes on record near Issaquah.
At a Glance
Recent Tornado Activity Near Issaquah
The last 20 years of confirmed tornadoes within 25 miles — 1 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 Issaquah been fatal?
No fatalities are on record within 25 miles of Issaquah from any of the 6 tornadoes since 1950, though 1 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near Issaquah
What the record shows near Issaquah
The 1960s were the busiest decade near Issaquah, with 3 of the 6 confirmed tornadoes within 25 miles; the 2000s have produced 2 so far. The Issaquah record runs from the 1960s to today.
Of the tornadoes rated near Issaquah, 5 reached EF0 or EF1 and 1 reached EF2 or stronger. The most intense on record near Issaquah is rated EF3, of which 1 is logged.
Across the last 20 years Issaquah has averaged 0.1 confirmed tornadoes a year within 25 miles, 1 in total. 2009 was the busiest of them with 1, and 19 of those years passed with none at all.