NOAA is predicting 2015 western Lake Erie harmful algal bloom season will be among the most severe in recent years and could become the second worst behind the record-setting 2011 bloom.The bloom will be expected to measure 8.7 on the severity index with a range from 8.1 to potentially as high as 9.5. This is more severe than 2014’s 6.5, and may equal or exceed 2013, which had the second worse bloom this century.