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		| By Sylvester - 10/2/2018 9:25:46 PM 
 Hi,
 Every so often SkyDemon paints a CTA from sea level to FL140, extending about 15 mile radius. Tonight it appeared as notamed from 2100-2110. I can't work out where it's coming from, as it's not listed in the normal notams. Is it spurious?
 Thanks in advance. PS. I have a screen shot of today's appearance.
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		| By Tim Dawson - 10/8/2018 11:27:30 AM 
 All NOTAMs are basically big circles of influence. You have to read the NOTAM text to find out what is going on. They have created a circle in this case which contains the pieces of airspace affected by it.
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