Canyon County, Idaho
Tornadoes, hail, floods and severe storms recorded here between 1956 and 2026, from NOAA's Storm Events Database. Search an address to see which tornadoes came closest to it.
6
Tornado reports
27
Hail reports
10
Floods since 1996
122
All events
2
Deaths
$9.1M
Property damage
Tornado paths in Canyon County
The part of each tornado’s path NOAA recorded in this county, 6 in all. Zoom in and the paths widen to their surveyed width.
EF0EF1EF2EF3EF4EF5Unrated
Year by year
All storm eventsTornadoes
NOAA's storm database records tornadoes back to 1950 and hail and thunderstorm wind back to 1955, but floods only from 1996 on. Older floods are missing here. For those, the U.S. Geological Survey's stream gauge records and flood reports are the place to look.
Most significant events
The strongest tornadoes, deadliest events and biggest damage here, up to 50.
One man was killed instantly when struck by lightning while moving an aluminum irrigation pipe on an alfalfa farm near Sunnyslope. A second man, standing about four feet away, received serious burns to the head and shoulder.
A farm worker was struck and killed by lightning while working on an irrigation pipe in a farm field during a thunderstorm.
Timing estimated by MRMS, polygon focused on the area with the largest impact and intentionally kept broad. Numerous reports received of flooded roadways, some impassable; flooding also affected houses, public buildings, and infrastructure. The Caldwell Airport ASOS reported 1.06…
Heavy Rain Heavy Rain
The 24 hour rainfall total was 0.73 inches at station ID CY 34.
Flood Flood
Minor flooding was reported on Highway US-95 from Mile Post 0-35.
Heavy Rain Heavy Rain
Heavy rain reported within a few hours.
Thunderstorm Wind Thunderstorm Wind
Two boats capsized from thunderstorm outflow wind and subsequent waves on Lake Lowell. One person had to be rescued.
Thunderstorm Wind Thunderstorm Wind
A portion of a metal roof was ripped off of an aircraft hangar.
Hail Hail
A member of the public submitted a photo of this on social media.
Hail Hail
This photo was submitted on social media and the time was estimated from radar.
Heavy Rain Heavy Rain
The Mesonet station, FW5367, in Nampa measured 1.08 inches of total rainfall.
Flood Flood
This was a public report form the Meteorological Phenomenon Identification Near the Ground.
Hail Hail
A member of the public submitted a photo on social media.
Flood Flood
A public report indicated that cropland, a yard, and a basement was flooded due to nearby rivers and creeks overflowing from heavy rain.
Thunderstorm Wind Thunderstorm Wind
Blue Spruce tree 50 feet tall uprooted in thunderstorm outflow.
Thunderstorm Wind Thunderstorm Wind
Damage was widespread across the valley including downed trees of various sizes.
The public in Caldwell reported several large trees and power lines down.
Hail Hail
Trained spotters south of Caldwell reported lime and half dollar sized hail.
Thunderstorm Wind Thunderstorm Wind
A trained spotter just west of Wilder reported large tree branches down due to thunderstorm outflow winds.
Thunderstorm Wind Thunderstorm Wind
A retired National Weather Service employee reported very strong winds gusts and damage associated with nearby thunderstorms. Numerous reports of downed trees and power lines were received through social media.
Thunderstorm Wind Thunderstorm Wind
Social media reported a 60 foot tall Blue Spruce tree was uprooted near Parma.
Flood Flood
The Boise River remained in flood during the entire month of May due to planned release from Lucky Peak dam. Regulated flows were above flood stage for 101 days resulting in extensive bank erosion and flooding of lowlands along the river.
Flood Flood
Planned releases from Lucky Peak Reservoir for flood control ranged from 7800 CFS to 8900 CFS during the month of April. The prolonged flood flows caused extensive damage along the river banks and widespread flooding of lowlands.
Flood Flood
The Army Corps of Engineers and Bureau of Reclamation increased regulated flows from Lucky Peak Reservoir putting the Boise River in flood for the remainder of the month of March. Flooding was expected to continue through late spring. The extended period of flood flows caused sev…
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported 4 inch tree branches down on numerous trees from thunderstorm gusts. Lightning struck a fence post causing the post to catch on fire.
Flash Flood Flash Flood
A National Weather Service employee reported flash flooding in Nampa and a trained spotter reported an inch and a half of rainfall in 30 minutes south of Nampa.
Thunderstorm Wind Thunderstorm Wind
A retired NWS employee reported roof shingles blown off homes in the area.
Flood Flood
Regulated flows on the Boise River increased above flood flow (7,000 cfs) on April 28, and were reduced below flood flow on May 15. Flood impacts were minor. Lowland flooding occurred along the river from Boise downstream through Caldwell to Parma. Sections of the greenbelt path …
Hail Hail
A National Weather Service employee reported one inch size hail and damage to vehicles.
Thunderstorm Wind Thunderstorm Wind
Several reports of downed trees and fences and damage to homes were received from local media.
Thunderstorm Wind Thunderstorm Wind
A coop observer in Nampa reported a fence blown over and a 6 inch diameter tree uprooted.
Hail Hail
A trained spotter in Nampa, Idaho reported three quarter inch hail.
Thunderstorm Wind Thunderstorm Wind
A measured gust of 51 MPH was reported, but tree and shingle damage, and extensive blowing dust point to a likely wind in excess of 58 MPH from the storm.
Hail Hail
Thunderstorm Wind Thunderstorm Wind
A trained spotter reported wind gusts to 60 MPH with trees blown down and heavy rain.
Hail Hail
Quarter Sized Hail Reported.
Hail Hail
Penny and Nickel Sized Hail Reported.
Hail Hail
Retired USAF weather forecaster reported nickel size hail.
Thunderstorm Wind Thunderstorm Wind
Wind Gust measured by home weather station at 68 M.P.H
Thunderstorm Wind Thunderstorm Wind
Hail Hail
Hail Hail
Sunnyslope Market
Flash Flood Flash Flood
Thunderstorm Wind Thunderstorm Wind
Thunderstorm Wind Thunderstorm Wind
High winds blew down trees and damaged power lines which knocked out power to over 8000 homesas well as traffic signals, tying up traffic in Canyon County during the afternoon and evening. Heavy rain also caused street flooding in Nampa and Caldwell.
Thunderstorm Wind Thunderstorm Wind
A gust of 54 knots was also reported from this site.
Thunderstorm Wind Thunderstorm Wind
Tornado F0 Tornado
Hail Hail
Thunderstorm Wind Thunderstorm Wind
Events by year, as a table
| Year | Events | Tornadoes |
|---|---|---|
| 2026 | 1 | 0 |
| 2024 | 1 | 0 |
| 2023 | 4 | 0 |
| 2022 | 6 | 0 |
| 2021 | 1 | 0 |
| 2020 | 1 | 0 |
| 2019 | 1 | 0 |
| 2018 | 1 | 0 |
| 2017 | 6 | 0 |
| 2015 | 1 | 0 |
| 2013 | 2 | 0 |
| 2012 | 2 | 0 |
| 2011 | 2 | 0 |
| 2009 | 2 | 0 |
| 2007 | 5 | 0 |
| 2006 | 4 | 0 |
| 2005 | 1 | 0 |
| 2004 | 1 | 0 |
| 2003 | 5 | 1 |
| 2002 | 9 | 0 |
| 2001 | 1 | 0 |
| 2000 | 3 | 1 |
| 1999 | 2 | 0 |
| 1998 | 4 | 0 |
| 1997 | 2 | 0 |
| 1996 | 11 | 1 |
| 1995 | 5 | 0 |
| 1993 | 3 | 0 |
| 1992 | 4 | 0 |
| 1991 | 3 | 1 |
| 1990 | 2 | 1 |
| 1989 | 2 | 0 |
| 1987 | 2 | 0 |
| 1986 | 1 | 1 |
| 1984 | 2 | 0 |
| 1982 | 6 | 0 |
| 1979 | 1 | 0 |
| 1976 | 1 | 0 |
| 1975 | 4 | 0 |
| 1967 | 1 | 0 |
| 1966 | 1 | 0 |
| 1965 | 1 | 0 |
| 1964 | 1 | 0 |
| 1960 | 1 | 0 |
| 1956 | 2 | 0 |
Search your address
See every tornado that passed within 25 miles of a place in Canyon County, measured to its path.
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