OSHKOSH, Wis. (AP) _ A skydiving death in Winnebago County this summer is being blamed on weather conditions and communication problems.

The case was referred to prosecutors but no criminal charges were filed.

Fifty-five-year-old jump instructor Paul Olsen of Belleville and his client jumped from a plane July 9 as a storm approached. The owner of Skydive Adventure Inc. told authorities he radioed Olsen's pilot multiple times telling him to abort the jump. But the pilot says he didn't receive a communication until Olsen and the client had already jumped.

The two were blown off course and landed in Lake Butte des Morts (BYOO'-deh-mor). The client swam to shore but Olsen drowned.

Prosecutor Christian Gossett says the death could have been prevented but no one person was to blame.