Green Bay, WI
Local storm history & FEMA National Risk Index data
Green Bay is rated Relatively Moderate for overall natural hazard risk — near the middle compared to other US counties — based on FEMA's National Risk Index for Brown County, WI. The county's highest-rated hazards are cold wave, hail, and lightning.
Storm events near Green Bay
NOAA-recorded tornado, hail, and flood events within 25 miles of Green Bay's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Green Bay 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 Brown County's FEMA National Risk Index scores, covering Green Bay along with the rest of the county, not a Green Bay-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 33.8 | Very Low |
| Inland Flooding | 91.9 | Relatively Moderate |
| Coastal Flooding | 46.4 | Relatively Low |
| Earthquake | 35.3 | Very Low |
| Heat Wave | 76 | Relatively Low |
| Tornado | 93.4 | Relatively High |
| Avalanche | — | Not Applicable |
| Cold Wave | 98.1 | Relatively High |
| Drought | 0 | No Rating |
| Hail | 95.7 | Relatively High |
| Hurricane | 26.1 | Very Low |
| Ice Storm | 47.8 | Relatively Low |
| Landslide | 57.8 | Very Low |
| Lightning | 95 | Relatively High |
| Strong Wind | 31 | Relatively Low |
| Tsunami | — | Insufficient Data |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 83.9 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Brown County risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Brown County:
More on Brown County:
Frequently asked questions
What natural hazards is Green Bay, WI at risk of?
Green Bay is rated Relatively Moderate for overall natural hazard risk by FEMA's National Risk Index — near the middle compared to other US counties. The highest-rated hazards for Brown County, where Green Bay is located, are cold wave, hail, and lightning.
What is Green Bay's biggest natural hazard risk?
Cold Wave is the highest-rated hazard for Brown County, where Green Bay is located, scoring 98.1 out of 100 on FEMA's National Risk Index (rated "Relatively High").
Is Green Bay a high-risk area for natural disasters?
Somewhat — Green Bay carries near the middle compared to other US counties for overall natural hazard risk, per FEMA's National Risk Index rating of "Relatively Moderate" for Brown County.
Has Green Bay had tornadoes, hail, or flooding?
NOAA has recorded 12 tornado, 76 hail, 29 inland flooding events within 25 miles of Green Bay since 2016.