rahel solomon in for christine romans. a stormy and hot independence eve day eve, is in store for millions of people across the country. severe storms are expected to spread from mississippi to massachusetts, with wind gusts, hail and tornadoes possible in some areas. the streets of chicago flooded on sunday after record rainfall. meantime, more than 30 million people across the west coast, mid-atlantic and the carolinas will be under heat alerts today. and the severe weather could also mean another frustrating day at airports. nearly 7500 flights were delayed, more than 600 were cancelled across the u.s. on sunday. and since saturday, there have been almost 1,000 cancellations. so, a lot to get to, let s bring in right now, cnn meteorologist allison chinchar. allison, good morning. what areas are you watching specifically? good morning, rahel. two separate areas of western. the first one kind of slides up and down most of the east coast and a secondary position for the mid
and a secondary position for the midwest and high plains. now, when we talk about where the storms are now, we do have active storms pushing through areas of the northeast. if you had a flight in or around boston it may or may not be delayed as showers make its way through upstate new york, portions of pennsylvania also looking at showers and thunderstorms this morning. once we get into the afternoon and especially into the evening hours after the heating of the day to help fire up the storms, the main focus is from mississippi to massachusetts, d.c., philadelphia, atlantic. that second system out to the midwest, minneapolis looking at potential for large hail and winds and also, yes, cannot rule out tornadoes. a lot more begins to fire up this afternoon and especially into the evening hours but not just the northeast. even across the southeast. and the other mississippi valley also looking for pop-up showers and thunderstorms.