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Last update: 21:00, 25 Jul 2026
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Flandreau, South Dakota experiences Great Plains tornado corridor and spring flooding. The Flandreau rain radar delivers real-time NEXRAD data from KFSD (Sioux Falls), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of South Dakota typically approach from southwest, and RainViewer's hyperlocal radar shows their exact position and direction so you can act before conditions change.
A standard forecast covers the broader South Dakota region. RainViewer shows the actual cell over Flandreau right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Flandreau's highest weather risk aligns with April–June (snowmelt+severe season). Great plains tornado corridor and spring flooding drives precipitation events in this region.
Seasonal transitions bring variable conditions — a live radar is more reliable than a forecast during these less predictable windows.
Precipitation probability drops in Flandreau during October–March, allowing outdoor activities to proceed with lower weather risk.
A radar check before leaving gives Flandreau drivers 20+ minutes to adjust timing or avoid flood-prone roads. Real-time NEXRAD is more actionable than a forecast probability for daily commute decisions in South Dakota.
Residents and visitors planning outdoor activities in Flandreau benefit from knowing exactly when rain will arrive from southwest. A live radar replaces forecast uncertainty with a real decision window.
RainViewer aggregates radar data for the United States from the NEXRAD network operated by NOAA's National Weather Service — 160 WSR-88D stations covering the contiguous US, Alaska, Hawaii, and US territories. Data updates every 4–6 minutes as each station completes its scan cycle. RainViewer processes and displays NEXRAD data at up to 250-meter resolution. For Flandreau, South Dakota, the primary NEXRAD source is KFSD (Sioux Falls).
Flandreau can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Great plains tornado corridor and spring flooding means runoff can accumulate quickly in parts of South Dakota. A live radar provides advance warning before conditions develop.
Flandreau's primary rain season runs through April–June (snowmelt+severe season). The driest period is typically October–March.
Yes — RainViewer shows live NEXRAD data for Flandreau at up to 250-meter resolution, updated every 4–6 minutes from KFSD (Sioux Falls). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Flandreau, South Dakota. Set an alert for your specific address — not just a general South Dakota area warning.
Rain can arrive in Flandreau faster than a forecast update — a live radar gives you the window to act.
Forecasts cover South Dakota broadly. RainViewer shows the cell position over Flandreau right now.
Your weather app shows rain likely near Flandreau. RainViewer shows the cell position and minutes to arrival.
Track rain in Flandreau — free Upgrade to Essential for alerts, forecasts, and full radar history
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storms approach Flandreau from southwest
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