Environmental Risk Report for Grand Isle County, Vermont
Comprehensive environmental hazard assessment
Coordinates: 44.7969°N, 73.2949°W • FIPS: 50013
Risk Assessment for Grand Isle County, Vermont
About Grand Isle County, Vermont
Grand Isle County is a county in VT known for its humid continental climate with cold winters and warm summers.
Grand Isle County's environmental risk profile includes coastal and inland flooding from nor'easters and tropical remnants, severe winter storms with heavy snow and ice accumulation, and the potential for river flooding during spring snowmelt. The region's aging infrastructure can amplify the impact of these natural hazard events.
Notable historical events affecting this area include the 2011 Tropical Storm Irene (6 deaths, 500+ miles of roads damaged, 6 covered bridges destroyed). These events underscore the importance of environmental risk awareness and preparedness for residents and property owners.
Notable Historical Events in Vermont
Understanding Risk Factors for Grand Isle County
🌊 Flood Risk
Flood risk in Grand Isle County is assessed using FEMA flood zone data, historical flood events, and proximity to water bodies. Areas near rivers, coastlines, and low-lying regions typically face elevated flood potential. Local topography and drainage infrastructure play a significant role in determining neighborhood-level risk.
❄️ Winter Storm Risk
Grand Isle County experiences severe winter weather including blizzards, ice storms, and dangerously low wind chills. Heavy snowfall can collapse roofs, ice accumulation can bring down power lines, and freeze-thaw cycles damage roads and infrastructure. Winter storm preparedness is essential for residents.
💨 Air Quality
Air quality monitoring in Grand Isle County draws from EPA AirNow sensors measuring particulate matter (PM2.5), ozone levels, and other pollutants that affect respiratory health. Seasonal variations and agricultural or industrial activity can influence local air quality.
🔥 Wildfire Risk
Wildfire risk evaluation considers vegetation density, climate conditions, historical fire data, and terrain characteristics in Grand Isle County. Seasonal weather patterns and local land management practices influence the area's fire vulnerability.
Other County Risk Reports in Vermont
Compare environmental risk scores across Vermont counties — flood, earthquake, wildfire and more