Initial jobless claims rose 15,000 last week to a seasonally adjusted 382,000–the highest since July. But the Labor Department advises “that several states have reported increases in initial claims (approximately 9,000 in total) for the week ending September 8, 2012 , as a result of Tropical Storm Issac.” Does that mean that last week’s rise is temporarily skewed with storm-related noise? Possibly, although only time will tell. Meantime, one reason for thinking positively: the unadjusted claims data on a year-over-year basis is still falling by 10% as of last week, a rate that’s in line with recent history. That’s a sign that it’s premature to read too much into last week’s seasonally adjusted jump.