PERTH, Australia, April 25 -- Bluefin-21 is currently completing mission 13 in the underwater search area and has now completed approximately 95 percent of the focused underwater search area with nothing found, the Joint Agency Coordination Center (JACC) confirmed in the latest update on Friday.

The focused underwater search area is defined as a circle of 10 km radius around the second Towed Pinger Locator detection which occurred on April 8.

In addition, eight military aircraft and 10 ships are planned to assist in Friday's search for missing Malaysia Airlines flight MH370.

Isolated showers is expected on Friday, with south easterly winds up to 25 knots, sea swells of two to three meters and visibility of one kilometer in thunderstorms and three kilometers in rain, according to weather forecast.

The Australian Maritime Safety Authority on Friday has planned a visual search area totaling approximately 49,240 square kilometers. The center of the search area lies approximately 1,584 kilometers north west of Perth.