U.S. Medium-range Forecast: Wetter Upper Midwest/Mid-south States but Great plains still very warm.

Charts of the day: SSTA patterns off each coast influence climate. Discussion: Since 2013, the “warm blob” has persistent in the northeast Pacific Ocean. Currently, the “warm blob” is displaced offshore and the attendant upper-level high-pressure ridge has a tendency to (also) be offshore. This high-pressure ridge position enables an upper trough to locate on…