City vs city
Melissa vs Van Alstyne, TX
Melissa and Van Alstyne are tied on overall score, with the biggest factor difference 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 uses an ingested EPA AirNow snapshot and may not reflect current conditions; 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
Melissa: 47/100 · Van Alstyne: 47/100
No gap.
Flood
Melissa: 34/100 · Van Alstyne: 34/100
No gap.
Melissa: FEMA NFHL flood zones: 9 features intersect this tile.
Van Alstyne: FEMA NFHL flood zones: 2 features intersect this tile.
Wind
Melissa: 14/100 · Van Alstyne: 14/100
No gap.
Melissa: Wind exposure derived from ingested design wind / climatology tiles.
Van Alstyne: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Melissa: 66/100 · Van Alstyne: 64/100
Melissa is 2 points higher.
Melissa: Lightning exposure derived from ingested climatology tiles.
Van Alstyne: Lightning exposure derived from ingested climatology tiles.
Tornado
Melissa: 23/100 · Van Alstyne: 38/100
Van Alstyne is 15 points higher.
Melissa: Tornado risk derived from NOAA SPC historical reports.
Van Alstyne: Tornado risk derived from NOAA SPC historical reports.
Hail
Melissa: 100/100 · Van Alstyne: 100/100
No gap.
Melissa: Hail risk derived from NOAA SPC historical reports.
Van Alstyne: Hail risk derived from NOAA SPC historical reports.
Storm surge
Melissa: Unavailable · Van Alstyne: Unavailable
A score difference cannot be calculated without both sources.
Melissa: Storm surge model is not available for this location yet.
Van Alstyne: Storm surge model is not available for this location yet.
Wildfire
Melissa: 61/100 · Van Alstyne: 54/100
Melissa is 7 points higher.
Melissa: Wildfire exposure derived from ingested fire potential tiles.
Van Alstyne: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Melissa: 28/100 · Van Alstyne: 28/100
No gap.
Melissa: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Van Alstyne: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.