SPC Activity Chart

Current Severe Weather Map Analysis







SPC Activity Chart, showing a 1 hour radar loop, the current Day1 convective outlook, and all active watches.
Updated every 15 minutes.
Click to see text
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.


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