Alert archive / Oregon / Severe Thunderstorm Warnings / 2026

Severe Thunderstorm Warnings in Oregon, May 2026

38 severe thunderstorm warnings in May 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

Each county as a circle sized by its count in May 2026. Tap one for its archive.

Severe Thunderstorm Warnings: 38
Busiest day: May 28, 202628 severe thunderstorm warnings

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
May 2, 6:59 PM PDT	Severe Thunderstorm Warning	MFR	Douglas	46 min
May 3, 5:05 PM PDT	Severe Thunderstorm Warning	MFR	Josephine	27 min
May 16, 5:39 PM PDT	Severe Thunderstorm Warning	PDT	Umatilla	21 min
May 27, 1:40 PM PDT	Severe Thunderstorm Warning	BOI	Harney	53 min
May 27, 2:16 PM PDT	Severe Thunderstorm Warning	MFR	Lake	29 min
May 27, 2:42 PM PDT	Severe Thunderstorm Warning	MFR	Lake	33 min
May 27, 3:14 PM PDT	Severe Thunderstorm Warning	MFR	Klamath, Lake	46 min
May 27, 3:58 PM PDT	Severe Thunderstorm Warning	MFR	Klamath, Lake	47 min
May 27, 4:36 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	39 min
May 27, 4:37 PM PDT	Severe Thunderstorm Warning Considerable damage threat	MFR	Klamath	38 min
May 27, 5:09 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	27 min
May 27, 5:13 PM PDT	Severe Thunderstorm Warning	MFR	Klamath	32 min
May 27, 5:40 PM PDT	Severe Thunderstorm Warning	MFR	Jackson, Klamath	18 min
May 28, 1:01 PM PDT	Severe Thunderstorm Warning	BOI	Harney	44 min
May 28, 1:02 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney, Malheur	43 min
May 28, 1:15 PM PDT	Severe Thunderstorm Warning	BOI	Harney	45 min
May 28, 1:36 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney, Malheur	39 min
May 28, 1:42 PM PDT	Severe Thunderstorm Warning	BOI	Harney	48 min
May 28, 1:50 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	40 min
May 28, 2:06 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	39 min
May 28, 2:09 PM PDT	Severe Thunderstorm Warning	MFR	Lake	51 min
May 28, 2:15 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	45 min
May 28, 2:18 PM PDT	Severe Thunderstorm Warning Destructive damage threat	BOI	Harney	42 min
May 28, 2:24 PM PDT	Severe Thunderstorm Warning	BOI	Baker	31 min
May 28, 2:26 PM PDT	Severe Thunderstorm Warning Destructive damage threat	PDT	Crook, Deschutes, Grant	64 min
May 28, 2:40 PM PDT	Severe Thunderstorm Warning Destructive damage threat	BOI	Harney	50 min
May 28, 2:59 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Harney	19 min
May 28, 3:05 PM PDT	Severe Thunderstorm Warning Considerable damage threat	BOI	Baker	40 min
May 28, 3:05 PM PDT	Severe Thunderstorm Warning Considerable damage threat	MFR	Lake	25 min
May 28, 3:24 PM PDT	Severe Thunderstorm Warning Considerable damage threat	PDT	Crook, Deschutes, Grant, Wheeler	66 min
May 28, 3:37 PM PDT	Severe Thunderstorm Warning Considerable damage threat	PDT	Umatilla	38 min
May 28, 3:45 PM PDT	Severe Thunderstorm Warning	BOI	Baker	31 min
May 28, 4:04 PM PDT	Severe Thunderstorm Warning Considerable damage threat	PDT	Grant, Wheeler	56 min
May 28, 4:14 PM PDT	Severe Thunderstorm Warning	PDT	Crook, Wheeler	46 min
May 28, 4:19 PM PDT	Severe Thunderstorm Warning	BOI	Baker	11 min
May 28, 4:42 PM PDT	Severe Thunderstorm Warning	PDT	Crook, Deschutes	48 min
May 28, 4:55 PM PDT	Severe Thunderstorm Warning Considerable damage threat	PDT	Grant, Jefferson, Morrow, Wheeler	65 min
May 28, 4:58 PM PDT	Severe Thunderstorm Warning Considerable damage threat	PDT	Umatilla, Union	32 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force now Tornadoes on record The radar archive 2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.