City vs city
Gretna vs Omaha, NE
Omaha currently scores 2 points higher overall than Gretna, with the largest gap in tornado.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Gretna: 44/100 · Omaha: 46/100
Omaha is 2 points higher.
Flood
Gretna: 44/100 · Omaha: 25/100
Gretna is 19 points higher.
Gretna: FEMA NFHL flood zones: 6 features intersect this tile.
Omaha: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Gretna: 19/100 · Omaha: 19/100
No gap.
Gretna: Wind exposure derived from ingested design wind / climatology tiles.
Omaha: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gretna: 45/100 · Omaha: 50/100
Omaha is 5 points higher.
Gretna: Lightning exposure derived from ingested climatology tiles.
Omaha: Lightning exposure derived from ingested climatology tiles.
Tornado
Gretna: 31/100 · Omaha: 54/100
Omaha is 23 points higher.
Gretna: Tornado risk derived from NOAA SPC historical reports.
Omaha: Tornado risk derived from NOAA SPC historical reports.
Hail
Gretna: 100/100 · Omaha: 100/100
No gap.
Gretna: Hail risk derived from NOAA SPC historical reports.
Omaha: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gretna: Unavailable · Omaha: Unavailable
A score difference cannot be calculated without both sources.
Gretna: Storm surge model is not available for this location yet.
Omaha: Storm surge model is not available for this location yet.
Wildfire
Gretna: 49/100 · Omaha: 50/100
Omaha is 1 points higher.
Gretna: Wildfire exposure derived from ingested fire potential tiles.
Omaha: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Gretna: 19/100 · Omaha: 23/100
Omaha is 4 points higher.
Gretna: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Omaha: Air quality signal derived from the latest EPA AirNow combined AQI grid.