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Radcon 2,3,4 show the direction that the NORM background radiation is going, if the levels are show up on the map, then the NORM background radiation is rising in the 3 month sliding scale. If the Radcon 1 ( green) shows up then the radiation has leveled off or decreasing like in Japan.
In fact, it appears that CPM levels are rising throughout the West coast now, even though RADCON 5′s are not being issued. Are RADCON 5′s ONLY issued when a 3 month high is reached? It seems that extremely high levels of radiation are consistently being reached on the West Coast now WITHOUT RADCON 5 alert being issued.