Dangerous heat continues to grip much of the nation, including the central Plains, Midwest, South and mid-Atlantic with more than a thousand records tied or set so far this week.
Temperatures will soar well into the 90s and past the century mark across these regions, while severe thunderstorms fire along the northern rim of heat.
Heat exhaustion and heat stroke are threats that people should take caution against by staying indoors in the air conditioning as much as possible and drinking plenty of water. Children and pets should never be left inside a car, for any amount of time in this heat.
The heat will not only take a toll on people and pets, but also some roads have already been buckling.
Underneath the area of high pressure promoting the heat, the air will become stagnant across much of the country. Poor air quality will cause concerns for the elderly and people with respiratory problems.
St. Louis, Kansas City, Chicago and Nashville still lie in the heart of the dangerous heat wave this week, as the heat challenges long-standing record highs. With high humidity factored in for cities like Kansas City and St. Louis, AccuWeather RealFeel® temperatures will soar to very dangerous levels of 110-115 degrees.
Minneapolis, Chicago, Milwaukee and Detroit are among the cities that tied or set new record highs on July Fourth, soaring above 100 degrees.
The mercury has soared to 100-degrees or higher for seven days in a row in St. Louis through July Fourth. If it hits 100 degrees through Friday, as expected, then it will be the second longest streak of 100-degree temperatures since 1936.
Highs are forecast to soar into the 90s in Detroit into the weekend. If the city manages to hit 90 degrees and higher through Saturday, as forecast, then the city will fall one day short of the longest streak of 90-degree temperatures ever recorded. The longest stretch of consecutive days at 90 degrees or higher for Detroit was 11 days set back in 1953.
Meanwhile, highs will continue to ramp up farther east across the mid-Atlantic through the rest of the week.
Philadelphia climbed back into the mid-90s on Independence Day with the renewed heat surge. Higher humidity will continue to make it feel more like 100 degrees during the afternoon through the end of the week.
No end of the heat is in sight for Washington, D.C., with highs expected to reach in the mid-90s straight through the rest of the week and weekend. Again, it will feel more like 100 degrees. At night, lows should be in the 70s, but high humidity will not allow for much relief from the brutal daytime heat.
The nation's capital has already recorded seven days in a row with a high of 90 degrees or higher through Wednesday. The peak of the current heat was a high of 104 degrees on Saturday.
Thousands of customers have no power or air conditioning from Indiana to Virginia, following last week's storms.
Dangerous Heat Persists
See how far away severe thunderstorms are as we monitor the severe weather with these radar images.
Heavy rain returning to the northern Plains will generate a renewed flood threat for the Red River.
Mount Saint Helens has erupted several times since the destructive 1980 eruption, and likely will again in the future.
Seven homes have been red tagged, meaning do not occupy, and six others are under a voluntary evacuation order.
Though recovery continues from Superstorm Sandy, residents and homeowners on the Atlantic coast should prepare for another active season in 2013.
While there is a threat for a shower in spots in Baltimore, Md., today, it will not be a washout like the day of the Kentucky Derby.
Ft. Lauderdale, (1973)
DC-9 crashes in a heavy thunderstorm, injuring three people.
Racine, WI (1883)
Tornado kills 25 people and causes $2 million damage.
Philadelphia, PA (2001)
24th straight day without measurable rain.