More for South Dakota: Highest flood risk cities · South Dakota live outlook
Current risk outlook
Flooding and heavy rain risk for New Underwood, 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 1% · 0.0 in · Max wind 9 to 20 mph.
1 active alert nearby.
Sources: NOAA, NWS, SPC, NHC, FEMA, USGS.
Historical risk score
Long-term baseline derived from historical hazard activity.
54
/ 100
For typical homes located in New Underwood, SD.
Baseline context
FEMA NFHL flood zones: 5 features intersect this tile.
Compare other local risks
See how New Underwood scores across each hazard model.
City snapshot
All hazards combined
Wind risk
Roof stress and gust-driven damage
AQI risk
Current air quality and AQI signal
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 historical hazard map
New Underwood, SD
Click a tile to update scores. These layers show long-term historical baseline risk, not live warnings or short-term forecast risk.
Live flood alerts & official forecast (NWS)
Forecast office: UNR · radar KUDX
Active alerts near New Underwood
Red Flag Warning
Effective local time
Red Flag Warning issued May 11 at 4:17AM MDT until May 11 at 9:00PM MDT by NWS Rapid City SD
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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: X (41% of features)
SFHA share: 59% (feature-weighted)
NFHL features in tile: 22
Tile risk label: Elevated
Source: FEMA NFHL (MapServer).
Nearest river gauge (USGS)
No nearby USGS gauges reporting right now.
Source: USGS NWIS (instant values).
Soil saturation (model)
Soil moisture: 8% 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 New Underwood, SD.
5-day flood & rain outlook
Today
LOWRain chance: 1% · 0.0 in
Max wind: 9 to 20 mph
Risk score: 10/100
Tomorrow
LOWRain chance: 0% · 0.0 in
Max wind: 13 to 22 mph
Risk score: 10/100
Wed
LOWRain chance: 0% · 0.0 in
Max wind: 5 to 23 mph
Risk score: 10/100
Thu
LOWRain chance: 8%
Max wind: 21 to 24 mph
Risk score: 13/100
Fri
LOWRain chance: 6%
Max wind: 13 to 22 mph
Risk score: 12/100
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 New Underwood
- 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 New Underwood
Does New Underwood 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.