A severe thunderstorm bringing heavy rain and lightning through the area caused Gulfstream Park to cancel its final five races Sunday out of an abundance of caution for horses, horsemen and fans, 1/ST Racing said in a press release on Sunday afternoon.The decision was made following a lengthy weather delay prior to sixth race with steady rain forecast into early evening.Exactas, Trifectas and Superfectas were refunded. The Sunshine meet will resume Friday with a nine-race program.The post Thunderstorms Force Gulfstream To Cancel Rest Of Sunday Card appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.