At the start of this thread, May is only 6-days away which means the start of severe weather season is right around the corner!!! April has proven to be a rather typical spring month here in New England with some rather warm days, some rather chilly days, days with rain, and even some snow. As we head towards the month of May, there are some conflicting signals within the long-range guidance. If one just looks at an averaged 500mb pattern you can draw conclusions, but at the end of the day those conclusions will probably not be accurate. The conflicting signals likely correlate to the fact that the pattern across North America will continue to remain volatile and perhaps dominated by a series of ridges/troughs propagating through the country. One of the biggest factors may be how the pattern is configured around the Arctic (most notable the NAO/AO). Typically, these indices start having less influence on the pattern as you move through spring, but they can certainly shape the pattern and play big factors through May. And unfortunately, there are conflicting signals on the evolution of these indices moving through May. Let's just hope that whatever happens, we can get into some patterns which usher in big heat, high humidity, EML's, and lots of convection!!