Updated from 11:43 a.m. EDT

Shares of Sports Authority ( TSA) were among the NYSE's losers Thursday after the company warned that its second-quarter earnings would fall short of expectations.

The sporting goods retailer now expects to earn 41 cents to 48 cents a share vs. previous guidance of 70 cents a share . It also expects to post a same-store sales decline of 4% to 5%. Previously, it said that same-store sales would be unchanged. The company cited unusually cool and wet weather in its key markets and a slowdown in its fitness-equipment business for the earnings shortfall. Shares of Sports Authority traded down $5.08, or 16.7%, to $25.37.

Steven Madden ( SHOO) tripped after warning that second-quarter earnings and sales would fall short of expectations. The shoe designer now expects to earn 25 cents to 28 cents a share on sales of $85 million to $86 million. Analysts had expected it to earn 34 cents a share. The company said the shoe market has "remained challenging" and several divisions faced "even greater pressure than expected." Looking ahead, the company expects to report full-year earnings of $1 to $1.03. Analysts had expected it to earn $1.36 a share. Shares of Steven Madden traded down $1.60, or 8.6%, to $17.08.

Shares of West Marine ( WMAR) fell after it reported in-line second-quarter earnings and sales but warned that third-quarter results would fall short of expectations. The boating supplies retailer reported a second-quarter profit of $1.17 a share on sales of $252.6 million. Looking ahead, the company said that customers "appear to have tightened their wallets recently," which will lead to a third-quarter earnings and sales shortfall. West Marine now expects to earn 43 cents to 44 cents a share on sales of $195 million to $197 million. Analysts had expected it to earn 49 cents a share on sales of $203.9 million. Shares of West Marine traded down 73 cents, or 3.5%, to $20.13.

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