Webb County
Texas — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 89th
Webb County faces medium composite natural disaster risk (NRI Risk Index score 89.2, 89th national percentile), driven primarily by heat wave and cold wave exposure. Expected annual loss across all 18 hazard types is $46M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Heat Wave | High | 10.26 / yr | $7M |
| Cold Wave | High | 1.26 / yr | $8M |
| Riverine Flood | Medium | 2.64 / yr | $25M |
| Hail | Medium | 0.66 / yr | $984K |
| Hurricane | Medium | 0.06 / yr | $2M |
| Winter Weather | Medium | 0.68 / yr | $109K |
| Tornado | Medium | 0.23 / yr | $2M |
| Ice Storm | Medium | 0.08 / yr | $106K |
| Wildfire | Low | 0.00 / yr | $66K |
| Landslide | Very Low | 0.32 / yr | $1K |
| Lightning | Low | 35.81 / yr | $168K |
| Strong Wind | Medium | 0.29 / yr | $379K |
| Earthquake | Very Low | 0.00 / yr | $117K |
| Drought | Low | 103.61 / yr | $33K |
| Avalanche | Very Low | 0.00 / yr | $0 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
| Volcanic Activity | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Webb County?
Webb County has a composite FEMA National Risk Index score of 89.2 out of 100, placing it in the Medium category and the 89th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Webb County?
The three highest-rated hazards are Heat Wave (High, $7M EAL), Cold Wave (High, $8M EAL), Riverine Flood (Medium, $25M EAL). These account for most of the county's expected annual losses.
How does Webb County compare to other Texas counties?
Webb County ranks #25 of 254 Texas counties for overall natural disaster risk, with a medium rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. Webb County's $46M EAL is a statistical average, not a guarantee for any specific year or address.