I believe Rex blocks have a long detailed and studied history of causing fits for models. Throw in that we've had for the last few years patterns that seem to get "stuck" for much longer time periods than climo says, upper lows being notoriously fickle, and driving convection as main precipitation mode and you get models that in long term default more and more on climo when pattern is unknown, thus leading to this situation. They did nail the cloudy "rainy weather for days part". I think them drawing a big circle over the northeast and Mid-Atlantic with a caption saying "cloudy, dreary, wet, rainfall between .50" and 6" next 3 days, we will let you know which camp you are in as convection fires each day" wouldn't go over to well. Sent from my SM-G970U using Tapatalk