More for South Dakota: Highest flood risk cities · South Dakota live outlook
Current risk outlook
Flooding and heavy rain risk for Sioux Falls, SD.
Live conditions updated just now. Refreshes every 5–40 minutes.
This view focuses on street flooding, ponding in low-lying areas, and how heavy rain tends to behave around this city.
Live risk outlook
LOWLow
Next 6–24 hours: Today: Low (10/100) · Rain 0% · 0.0 in · Max wind 10 to 15 mph.
No active local alerts at this moment.
Sources: NOAA, NWS, SPC, NHC, FEMA, USGS.
Historical risk score
Long-term baseline derived from historical hazard activity.
52
/ 100
For typical homes located in Sioux Falls, SD.
Baseline context
FEMA NFHL flood zones: 17 features intersect this tile.
Compare other local risks
See how Sioux Falls scores across each hazard model.
City snapshot
All hazards combined
Wind risk
Roof stress and gust-driven damage
Lightning risk
Thunderstorm and strike exposure
Wildfire risk
Fuels, dryness, and fire potential
Tornado risk
Historic tornado corridor exposure
Hail risk
Hail frequency and roof impact potential
Local hazard map
Sioux Falls, SD
Click a tile to update scores. These layers are for awareness and are not a replacement for official NWS / NHC warnings.
Live flood alerts & official forecast (NWS)
Forecast office: FSD · radar KFSD
Active alerts near Sioux Falls
No active NWS alerts at this point right now.
Protect your home before the next storm
Turn today’s risk into a checklist for your home.
Flood intelligence snapshot
FEMA flood zones (NFHL)
Dominant zone: AE (52% of features)
SFHA share: 52% (feature-weighted)
NFHL features in tile: 93
Tile risk label: Elevated
Source: FEMA NFHL (MapServer).
Nearest river gauge (USGS)
BIG SIOUX R AT NORTH CLIFF AVE AT SIOUX FALLS,SD (06482020)
Stage: 5.82 ft
Discharge: -999,999 ft3/s
Observed: local time
Distance from Sioux Falls: 2 mi
Source: USGS NWIS (instant values).
Soil saturation (model)
Soil moisture: 13% volumetric
Last 24h rain: 0.00 in
Updated: local time
Source: Open-Meteo soil model (proxy).
Protect your home before the next storm
Turn today's flood exposure into a checklist for drains, valuables, and coverage in Sioux Falls, SD.
5-day flood & rain outlook
Today
LOWRain chance: 0% · 0.0 in
Max wind: 10 to 15 mph
Risk score: 10/100
Tomorrow
LOWRain chance: 0% · 0.0 in
Max wind: 10 to 20 mph
Risk score: 10/100
Sat
LOWRain chance: 37% · 0.0 in
Max wind: 10 to 15 mph
Risk score: 25/100
Sun
LOWRain chance: 29%
Max wind: 5 to 10 mph
Risk score: 22/100
Mon
LOWRain chance: 13%
Max wind: 10 to 15 mph
Risk score: 15/100
Outlook blends NWS forecast, WPC QPF totals, and Excessive Rainfall Outlook categories.
Historical flooding exposure
Local flood data facts
Data from FEMA NFHL, USGS gauges, and Open-Meteo soil moisture.
Historical flooding exposure in Sioux Falls
- Lowest-lying streets and drainage chokepoints tend to flood first during heavy rain.
- Long-duration rainfall can raise ponding risk even without a named storm.
- Local elevation and canal/river networks can amplify or reduce flood impacts.
Flood & storm risk FAQs for Sioux Falls
Does Sioux Falls flood often?
Flooding risk depends on elevation, drainage, and rainfall intensity. This model summarizes localized flood patterns from public datasets.
What causes street flooding without a storm surge?
Short bursts of heavy rain can overwhelm drains; longer events can saturate soils and keep water standing even after rain ends.