Lifestyle footwear firm Skechers USA Inc today issued a statement saying it expects third quarter revenues to be lower than forecast, as weak domestic retail sales and a soft back-to-school season take their toll on its August results.  The company now estimates reporting third quarter diluted earnings per share in the range of $0.30 - $0.35, compared to $0.30 in the third quarter of the prior year and versus the current third quarter First Call consensus estimate of $0.41. Revenues are likely to be in the range of $245-255 million, compared to $287.9 million in the third quarter of last year.