Summerlin South, Nevada: natural disaster risk
How exposed Summerlin South is to floods, storms and other hazards, from FEMA and NOAA records for Clark County.
Summerlin South is a community of 31,354 people in Clark County, Nevada. FEMA's National Risk Index rates Clark County very high for natural hazards overall, higher than most of the US. The costliest hazards there are inland flooding, heat wave and earthquake, with about $813 million in expected losses a year across the county. The weather service has logged 908 storm reports in the county since 1959, including 13 tornadoes and 398 floods. About 0.2% of homes in the county carry federal flood insurance.
Risk figures are for Clark County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Summerlin South
Full Clark County report ›- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Check that cooling works before summer.
- Know where the nearest cooling center is.
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $362M | |
| Heat wave | $295M | |
| Earthquake | $124M | |
| Wildfire | $24M | |
| Hail | $4M | |
| Avalanche | $913K | |
| Lightning | $891K | |
| Strong wind | $804K | |
| Winter weather | $89K | |
| Landslide | $70K | |
| Tornado | $51K | |
| Drought | $1K |
Homes in Summerlin South
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Strongest tornadoes in Clark County
More cities in Clark County
Other cities in Nevada
All ›Common questions about Summerlin South
Is Summerlin South safe from natural disasters?
Summerlin South is in Clark County, which FEMA's National Risk Index rates very high overall, higher than most of the US. The biggest hazards are inland flooding, heat wave, earthquake. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Summerlin South?
By expected yearly losses in Clark County, the top hazards are inland flooding (Very High), heat wave (Very High), earthquake (High). Clark County has been part of 12 federal disaster or emergency declarations for natural events.
Does Summerlin South get tornadoes?
Yes. NOAA records list 13 tornadoes in Clark County since 1950; the strongest was an F1 tornado on September 17, 1989. FEMA rates tornado risk in the county very low.
Do I need flood insurance in Summerlin South?
Standard home insurance does not cover floods. In Clark County, about 0.2% of homes have federal flood insurance, and FEMA rates inland flooding risk very high. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.