Snohomish County tornado history

7 tornadoes touched Snohomish County, Washington between 1950 and 2025 — about 0.1 a year. The strongest was rated F2 (Nov 24, 1970).

7tornadoes since 1950

F2strongest rating

0killed · 0 injured

3 milongest path · 1971

(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F03

(E)F12

(E)F22

(E)F30

(E)F40

(E)F50

JFMAMJJASOND

Peak month: May.

’50’60’70’80’90’00’10’20

Date	Rating	Path	Width
Nov 24, 1970	F2	0.3 mi	30 yd
May 13, 1986	F2	0.3 mi	10 yd
Oct 26, 1971	F1	3 mi	100 yd
May 18, 2005	F1	0.2 mi	10 yd
Aug 24, 1997	F0	0.5 mi	20 yd
Jun 16, 2006	F0	0.5 mi	50 yd
Jun 5, 2004	F0	0.1 mi	10 yd

Date	Rating	Path	Width
Jun 16, 2006	F0	0.5 mi	50 yd
May 18, 2005	F1	0.2 mi	10 yd
Jun 5, 2004	F0	0.1 mi	10 yd
Aug 24, 1997	F0	0.5 mi	20 yd
May 13, 1986	F2	0.3 mi	10 yd
Oct 26, 1971	F1	3 mi	100 yd
Nov 24, 1970	F2	0.3 mi	30 yd

How many tornadoes has Snohomish County, Washington had?

7 tornadoes touched Snohomish County, Washington between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.1 per year.

What was the strongest tornado in Snohomish County?

The strongest rating recorded was F2 on Nov 24, 1970, with a 0.3-mile path.

When is tornado season in Snohomish County?

Most of its tornadoes happened in May (2 of 7). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).