Transcript for East Coast braces for record-high temperatures
the extreme weather across the country. The east coast bracing for record high temperatures today and flash flooding hitting the midwest overnight. Ginger has the very latest. Good morning to you, ginger. Good morning to you, Michael. Stunning numbers coming in as far as that heat. After dozens of cities marked their hottest September on record, yesterday, 18 state has record highs. 52 cities tied or broke their hottest October temperatures on record. Including Cleveland and Atlanta. Today that will settle in on the east coast. Some of the numbers because Philadelphia could go to 94. Seeing their hottest temperature in nearly 80 years. 98, Richmond. Unbelievable numbers here but you know between there and the record lows that are happening in Montana they're going to be storms. Up to four inches of flash flooding in Milwaukee from Texas and Oklahoma all the way up to Michigan and now I am honored to bring you a brand-new tool that we have here at ABC news, this is augmented reality where we get to focus on one state, pop it right out of the ground and showcase what's happening there because this is where the dangerous weather is possible today. So let me start you out. See the streamlines, red lines represent wind at the surface and the cold up above that includes a lot of mid-michigan, lancing and when you have a warm front as of yesterday the warm air is rising. If we take the camera we can move anywhere. This is the cool part. You see where that warm air was rising creates thunderstorms that don't move much. Well now that front has become stationary and what's going to happen it's going to see training where the thunderstorms just roll over. You could easily have two to four inches of rain falling in a very quick period and that's when it becomes dangerous or deadly and what this tool will help us show to you. Guys. Wow. Wow. Really cool. Yeah. Are you stunned? I know now you all will love weather as much as I do. I wonder what else you can do with it. You can get into the nooks and crannies of a mountain range and showcase where the fire is, where it could move next and talk about lake-effect snow, how it begins and how it ends. It will be powerful and a big thanks to the graphic team. That doesn't just pop out of the ground. It take as a lot of people. Always takes a village. Thank you.
This transcript has been automatically generated and may not be 100% accurate.