There is an unusual 20-30% increase in Airborne radioactivity blowing into the Saint Louis area, tied to the Fukushima jetstream moving into the area. We can not say with certainty that the increase is Fukushima related; given the high surface winds, we don't don't discount the possibility that the radiation increase may be from Weldon Spring Ordnance Works Nuclear Superfund Site:
If the increase in radiation is related to Fukushima we would expect elevated readings to soon be reported from other reporting locations.
A screen capture of our Live Indoor and Outdoor Radiation monitors {link}
Weather Conditions at the time:
Sunshine (no rain)
79F
High Winds from the South and West, @ 20-40 mph with Gusts 30-60 mph
Jetstream blowing in from Fukushima

