Susanville, CA
Local storm history & FEMA National Risk Index data
Susanville is rated Relatively Low for overall natural hazard risk — lower risk than most US counties — based on FEMA's National Risk Index for Lassen County, CA. The county's highest-rated hazards are wildfire, earthquake, and volcanic activity.
Storm events near Susanville
NOAA-recorded tornado, hail, and flood events within 25 miles of Susanville's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Susanville 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 Lassen County's FEMA National Risk Index scores, covering Susanville along with the rest of the county, not a Susanville-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 97.5 | Relatively Moderate |
| Inland Flooding | 74.4 | Relatively Moderate |
| Coastal Flooding | — | Not Applicable |
| Earthquake | 89.7 | Relatively Low |
| Heat Wave | 24.2 | Very Low |
| Tornado | 3.2 | Very Low |
| Avalanche | 26.3 | Very Low |
| Cold Wave | 2.5 | Very Low |
| Drought | 83.6 | Relatively Moderate |
| Hail | 6.3 | Very Low |
| Hurricane | — | Not Applicable |
| Ice Storm | — | Not Applicable |
| Landslide | 51 | Very Low |
| Lightning | 33.8 | Relatively Low |
| Strong Wind | 5.8 | Very Low |
| Tsunami | — | Not Applicable |
| Volcanic Activity | 87 | Relatively Low |
| Winter Weather | 82.7 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Lassen County risk profile for disaster declarations, social vulnerability, and climate projection data.
More on Lassen County:
Frequently asked questions
What natural hazards is Susanville, CA at risk of?
Susanville is rated Relatively Low for overall natural hazard risk by FEMA's National Risk Index — lower risk than most US counties. The highest-rated hazards for Lassen County, where Susanville is located, are wildfire, earthquake, and volcanic activity.
What is Susanville's biggest natural hazard risk?
Wildfire is the highest-rated hazard for Lassen County, where Susanville is located, scoring 97.5 out of 100 on FEMA's National Risk Index (rated "Relatively Moderate").
Is Susanville a high-risk area for natural disasters?
No — Susanville carries lower risk than most US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Low" for Lassen County.
Has Susanville had tornadoes, hail, or flooding?
NOAA has recorded 2 hail, 5 inland flooding events within 25 miles of Susanville since 2016.