City vs city
San Francisco vs Shasta Lake, CA
Shasta Lake currently scores 3 points higher overall than San Francisco, with the largest gap in wildfire.
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
San Francisco: 25/100 · Shasta Lake: 28/100
Shasta Lake is 3 points higher.
Flood
San Francisco: 26/100 · Shasta Lake: 38/100
Shasta Lake is 12 points higher.
San Francisco: FEMA NFHL flood zones: 4 features intersect this tile.
Shasta Lake: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
San Francisco: 2/100 · Shasta Lake: 4/100
Shasta Lake is 2 points higher.
San Francisco: Wind exposure derived from ingested design wind / climatology tiles.
Shasta Lake: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
San Francisco: 0/100 · Shasta Lake: 6/100
Shasta Lake is 6 points higher.
San Francisco: Lightning exposure derived from ingested climatology tiles.
Shasta Lake: Lightning exposure derived from ingested climatology tiles.
Tornado
San Francisco: 0/100 · Shasta Lake: 0/100
No gap.
San Francisco: Tornado risk derived from NOAA SPC historical reports.
Shasta Lake: Tornado risk derived from NOAA SPC historical reports.
Hail
San Francisco: 18/100 · Shasta Lake: 14/100
San Francisco is 4 points higher.
San Francisco: Hail risk derived from NOAA SPC historical reports.
Shasta Lake: Hail risk derived from NOAA SPC historical reports.
Storm surge
San Francisco: Unavailable · Shasta Lake: Unavailable
A score difference cannot be calculated without both sources.
San Francisco: Storm surge model is not available for this location yet.
Shasta Lake: Storm surge model is not available for this location yet.
Wildfire
San Francisco: 52/100 · Shasta Lake: 82/100
Shasta Lake is 30 points higher.
San Francisco: Wildfire exposure derived from ingested fire potential tiles.
Shasta Lake: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
San Francisco: 25/100 · Shasta Lake: 26/100
Shasta Lake is 1 points higher.
San Francisco: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Shasta Lake: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.