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SPC Activity Chart, showing a 1 hour radar loop, the current Day1 convective outlook, and all active watches. Updated every 15 minutes. 
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| What this Map is Illustrating: The first data you will note is a one hour animated loop of all US Radar. The time of each Radar image is shown in the lower left box. All times are GMT; subtract 4 hours for EDT, 5 hours for EST. The current "convective outlook" is displayed by the solid lines. Orange outlines general thunderstorms (non-severe). Green: Slight Risk, Red: Moderate Risk, Purple: High Risk. Any active Watches and Warning are also shown. Blue outline box: Severe Thunderstorm Watch, Red outline box: Tornado Watch. |