OK, my guess:
none: 6.5 or more
low: 5-6.5
medium: 4-5 (typical big-city suburbia; I think S&T assumes 4.5 for their reporting)
high: 2.5-4
s&^%$d: less than 2.5
give or take half a mag. See http://cleardarksky.com/lp/LAXCAlp.html for impact.
none: 6.5 or more
low: 5-6.5
medium: 4-5 (typical big-city suburbia; I think S&T assumes 4.5 for their reporting)
high: 2.5-4
s&^%$d: less than 2.5
give or take half a mag. See http://cleardarksky.com/lp/LAXCAlp.html for impact.
