The column quickly warms Tuesday and stays that way through middle of next week as an expansive upper-level ridge builds over the central CONUS. Aloft, 850 mb temperatures soar to +15-18C. Unsurprisingly, dry conditions are likely through much of next week as surface high pressure builds overhead. Bigger story will be the increasing heat starting Tuesday through much of the upcoming week. Ensemble guidance shows somewhat impressively high probabilities for high temps >90F with values between 50 and 60% in the CT and Merrimack River Valleys Tues-Fri.