Open-Meteo weather data · KDE density · Population impact · Radiation decay
Target & Weapon
Click on the map to set the detonation point.
Detonation type
Detonation time
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Timeline
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Current status
Center distance
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Wind speed
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Wind direction
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Spread diameter
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Affected population (est.)
Lethal (>500 R/hr)
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Serious injury
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Radiation sickness
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Evacuation zone
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Total affected
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Evacuation Guide
↑
Primary escape direction
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Fallout front ~50 km
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Fallout front ~100 km
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Min. evacuation distance
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Shelter factor (concrete)
100–200×
Key rules
⚠ Important: This is a simplified educational estimate. Actual safe zones depend on terrain, precipitation, and precise atmospheric conditions. Always follow official emergency services guidance. Do not use for real emergency decisions.
Radiation dose
Lethal
>500 R/hr
Serious injury
100–500
Radiation sickness
10–100
Evacuation zone
1–10
Low risk
<1 R/hr
Note:For educational purposes. 100 particles, Gaussian KDE. ~300 major cities. Rain and altitude winds not included.