thanks nh22…i actually got a chance to go up and walk the property, which happened to be at 900-1000'. Watched the fog roll in just under the property may be a few hundred feet. Im thinking about sealed greenhouses w c02? supplemental lighting? obviously I won't beat the fog every time, but the prop owner said if it does reach the property line it usually burns off quick. Still, a week of foggy conditions in oct could reek havoc on a crop.