Norwich, CT
Local storm history & FEMA National Risk Index data
Norwich 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 Southeastern Connecticut Planning Region, CT. The county's highest-rated hazards are hurricane, inland flooding, and earthquake.
Storm events near Norwich
NOAA-recorded tornado, hail, and flood events within 25 miles of Norwich's center, 2016–2026 — the only hazards NOAA reports with exact coordinates, so these counts are specific to Norwich 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 Southeastern Connecticut Planning Region's FEMA National Risk Index scores, covering Norwich along with the rest of the county, not a Norwich-specific figure.
| Hazard | NRI score | Rating |
|---|---|---|
| Wildfire | 39.4 | Very Low |
| Inland Flooding | 91.8 | Relatively Moderate |
| Coastal Flooding | 71.2 | Relatively Moderate |
| Earthquake | 80.9 | Relatively Low |
| Heat Wave | 71.3 | Relatively Low |
| Tornado | 53.1 | Relatively Low |
| Avalanche | — | Not Applicable |
| Cold Wave | 42.9 | Relatively Low |
| Drought | 32.4 | Relatively Low |
| Hail | 45.2 | Relatively Low |
| Hurricane | 94.7 | Relatively High |
| Ice Storm | 78.2 | Relatively Moderate |
| Landslide | 76.7 | Relatively Low |
| Lightning | 75.5 | Relatively Moderate |
| Strong Wind | 57.3 | Relatively Moderate |
| Tsunami | — | Insufficient Data |
| Volcanic Activity | — | Not Applicable |
| Winter Weather | 76.8 | Relatively Moderate |
Source: FEMA National Risk Index v1.20.0, December 2025. See the methodology page for definitions, or the full Southeastern Connecticut Planning Region risk profile for disaster declarations, social vulnerability, and climate projection data.
Other cities in Southeastern Connecticut Planning Region:
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Frequently asked questions
What natural hazards is Norwich, CT at risk of?
Norwich 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 Southeastern Connecticut Planning Region, where Norwich is located, are hurricane, inland flooding, and earthquake.
What is Norwich's biggest natural hazard risk?
Hurricane is the highest-rated hazard for Southeastern Connecticut Planning Region, where Norwich is located, scoring 94.7 out of 100 on FEMA's National Risk Index (rated "Relatively High").
Is Norwich a high-risk area for natural disasters?
Somewhat — Norwich 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 Southeastern Connecticut Planning Region.
Has Norwich had tornadoes, hail, or flooding?
NOAA has recorded 12 tornado, 35 hail, 79 inland flooding events within 25 miles of Norwich since 2016.