Viso, Andretti top Indy 500 speed chart Friday

Scott Dixon, of New Zealand, prepares to practice as storm clouds move in that delayed practice for the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 17, 2013. (AP Photo/AJ Mast) (The Associated Press)

E.J. Viso, of Venezuela, sits in his car during a break in practice for the Indianapolis 500 auto race at the Indianapolis Motor Speedway in Indianapolis, Friday, May 17, 2013. (AP Photo/Darron Cummings) (The Associated Press)

INDIANAPOLIS – E.J. Viso posted the fastest lap at Friday's practice for the Indianapolis 500, reaching 229.537 mph before lightning, heavy rain and wind shut things down.

Practice was called off about 2 1/2 hours early as water stood on the straightaway and in pit road.

Marco Andretti, who posted some of the fastest speeds all week, was second-fastest Friday at 228.754 mph. Indy 500 rookie Carlos Munoz, also a regular at the top of the speed charts during the first days of practice, was third-fastest at 228.250, Will Power was fourth at 228.401 and J.R. Hildebrand was fifth at 227.549.

The last day of practice is Saturday morning with Pole Day qualifying in afternoon.