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Blaine County, Idaho severe weather history spans 114 recorded events between 1967 and 2025. The dominant hazard is thunderstorm wind, accounting for 50.0% of all recorded events. It ranks #2,837 nationally and #20 in Idaho.
114
Recorded events
0
Direct deaths
0
Direct injuries
$18.1M
Property damage
The record
What the Blaine County, Idaho severe weather history record shows
Across the archive, Blaine County, Idaho severe weather history averages 2.0 recorded events a year. The busiest stretch on record is the 2010s, with 37 events logged in that decade alone. Roughly 7 events fall before 1990 and 107 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is flood, with $17.9M in reported property damage. In total, 10 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Blaine County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Thunderstorm Wind | 57 | 0 | $122K | 83 | 1967–2025 |
| Flood | 15 | 0 | $17.9M | 0 | 2006–2023 |
| Flash Flood | 14 | 0 | $1K | 0 | 2007–2021 |
| Hail | 9 | 0 | $0 | 1.75 | 1975–2019 |
| Tornado | 6 | 0 | $119K | F0 | 1988–2006 |
| Wildfire | 5 | 0 | $0 | 0 | 1996–2003 |
| Funnel Cloud | 3 | 0 | $0 | 0 | 2014–2015 |
| Lightning | 3 | 0 | $2K | 0 | 1997–2016 |
| Debris Flow | 1 | 0 | $0 | 0 | 2019–2019 |
| Heavy Rain | 1 | 0 | $0 | 0 | 2014–2014 |
Decade by decade
Blaine County, Idaho severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
Tornado tracks
Paths crossing this county
7 mapped tornado paths intersect this county: 7 touched down inside it and 0 crossed in from a neighbouring county. This comes from path geometry, not county-tagged reports.
| Date | Scale | Deaths | Injuries | Path length | Origin |
|---|---|---|---|---|---|
| 2006-10-04 | EF0 | 0 | 0 | 1.0 mi | Touched down here |
| 2005-05-05 | EF0 | 0 | 0 | 0.4 mi | Touched down here |
| 2005-05-05 | EF0 | 0 | 0 | 0.5 mi | Touched down here |
| 1995-05-26 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
| 1995-06-05 | EF0 | 0 | 0 | 0.1 mi | Touched down here |
| 1991-05-18 | EF0 | 0 | 0 | 0.2 mi | Touched down here |
| 1988-07-07 | EF0 | 0 | 0 | 0.2 mi | Touched down here |
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The Big Wood River at Hailey went above flood stage again on May 30th and remained until June 11th then again June 19th through 23rd. It was at least at action stage through the entire month. Extensive flooding of business and residential buildings and houses continued in both Hailey and Sun Valley. The Warm Springs Creek region had severe impacts. Several roadways and bridges were washed away and washed out. Many campgrounds experienced major damage as well.; Many agricultural fields were lost.
Flooding due to the rise of the Big Wood River due to snowmelt and spring rains flooded parts of Hailey including War Eagle Drive, Flat Top Road, and Camp Creek Road. Damages were estimated at 1.9 million dollars on Flat Top Road and Camp Creek Road.
Flooding of the Big Wood River for several months occurred in the Della View neighborhood of Hailey. It finally ended in June but the total cost of the extensive flooding period resulted in $750,000 of insurance claims in the neighborhood and $200,000 for flood response and public property cleanup.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
24,951
Population (ACS)
$735K
Median home value
10
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Sep 5, 2022 | Fire | ROSS FORK FIRE | FM |
| Apr 9, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Aug 27, 2017 | Flood | FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Aug 15, 2013 | Fire | BEAVER CREEK FIRE | FM |
| Aug 28, 2007 | Fire | CASTLE ROCK FIRE | FM |
Quick answers
Frequently asked
How many severe weather events have been recorded in Blaine County, Idaho?
114 events are on record between 1967 and 2025, causing 0 direct deaths and $18.1M in property damage.
What is the most common severe weather hazard in Blaine County?
Thunderstorm Wind, with 57 recorded events — 50.0% of everything in the archive for this county.
How many tornadoes have crossed Blaine County?
7 mapped tornado paths intersect the county boundary; 7 of them touched down inside it. This is derived from path geometry, not county-tagged reports.
How many federal disaster declarations cover Blaine County?
10 federal disaster declarations from FEMA include Blaine County, each tied to a specific incident period.
How risky is Blaine County compared with the rest of the country?
FEMA's National Risk Index rates Blaine County as relatively low risk, placing it in the 65 percentile of its state for expected annual loss.
Where does the Blaine County, Idaho severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Bingham County 285
- Boise County 99
- Benewah County 50
- Bonner County 125
- Bear Lake County 80
- Bonneville County 223
Cite this page
“Blaine County, Idaho.” Severe Weather History. severeweatherhistory.com/county/idaho/blaine-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.