Unexpected Strong Winds Caused Unplanned Launch From Casino Event The Elk Grove, Calif., Police Department said a hot air balloon made an unplanned launch from Sky River Casino due to unexpected strong winds. The balloon then struck a tree, the side of the casino and a power line before eventually descending and coming to rest in a field southeast of Grant Line Road. The pilot was the sole occupant and was not injured. In footage obtained by local media outlet KCRA, the hot air balloon could be seen in the air before striking a tree and then slamming into the side of the casino. The hot air balloon then traveled over the top of the casino before gaining height. The balloon remained in the air for around 20 minutes.