Butte-Silver Bow, MT
Local storm history & FEMA National Risk Index data
Butte-Silver Bow is rated Very Low for overall natural hazard risk — among the lowest-risk counties in the country — based on FEMA's National Risk Index for Silver Bow County, MT. The county's highest-rated hazards are winter weather, landslide, and earthquake.
Storm events near Butte-Silver Bow
NOAA-recorded tornado, hail, and flood events within 25 miles of Butte-Silver Bow's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Butte-Silver Bow itself, not the whole county.
County-wide hazard risk
Every other hazard FEMA and NOAA track — including drought — is only scored at the county level. These are Silver Bow County's FEMA National Risk Index scores, covering Butte-Silver Bow along with the rest of the county, not a Butte-Silver Bow-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 80.7 | Relatively Low |
| Inland Flooding | 21.7 | Very Low |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 87.4 | Relatively Low |
| Heat Wave | 13.9 | Very Low |
| Tornado | 9.8 | Very Low |
| Avalanche | 43 | Very Low |
| Cold Wave | 81.9 | Relatively Moderate |
| Drought | 14.5 | Very Low |
| Hail | 27.2 | Very Low |
| Hurricane | — | Not Applicable |
| Ice Storm | 13.5 | Very Low |
| Landslide | 90.4 | Relatively Moderate |
| Lightning | 61.9 | Relatively Moderate |
| Strong Wind | 10 | Very Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 92.4 | Relatively High |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Silver Bow County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Silver Bow County:
Frequently asked questions
What natural hazards is Butte-Silver Bow, MT at risk of?
Butte-Silver Bow is rated Very Low for overall natural hazard risk by FEMA's National Risk Index — among the lowest-risk counties in the country. The highest-rated hazards for Silver Bow County, where Butte-Silver Bow is located, are winter weather, landslide, and earthquake.
What is Butte-Silver Bow's biggest natural hazard risk?
Winter Weather is the highest-rated hazard for Silver Bow County, where Butte-Silver Bow is located, scoring 92.4 out of 100 on FEMA's National Risk Index (rated "Relatively High").
Is Butte-Silver Bow a high-risk area for natural disasters?
No — Butte-Silver Bow carries among the lowest-risk counties in the country for overall natural hazard risk, per FEMA's National Risk Index rating of "Very Low" for Silver Bow County.
Has Butte-Silver Bow had tornadoes, hail, or flooding?
NOAA has recorded 14 hail, 5 inland flooding events within 25 miles of Butte-Silver Bow since 2016.