Humidity increased quite a bit today across Long Island as a southerly breeze took over. Dewpoints climbed through the 60's and are hovering near the 70 degree mark, which is a very uncomfortable level. With the humidity in place and a slow-moving cold front heading our way, scattered thunderstorms will be possible over the next 24 to 36 hours. Most of the storms today have been confined to areas just north and west of Long Island. But as we move through the evening a few storms will be possible.
Heading into tomorrow, scattered storms will be a bit more likely on Long Island as the cold front moves closer. The storms could happen at any time, but will be most likely during the afternoon and evening. Any of the storms could put down a lot of rain in a hurry, so localized flooding will be the biggest concern.