New York and the I-95 corridor are experiencing scorching temperatures due to a heat wave, and Washington, DC, might reach 100 degrees.

This weekend, a severe heat wave is bringing oppressive heat to a large portion of the US, including the Ohio Valley and the mid-Atlantic. This weekend, a tropical system might form in the southwest Gulf of Mexico. The most recent is this:

Millions of Americans under heat alert: Through the weekend, over 100 million Americans—including many living in the densely crowded I-95 corridor—are under heat alert. There is a heat emergency in place for Washington, DC, where temperatures might reach the upper 90s or perhaps triple digits for the first time since 2016.

• Tropical system development: Following Alberto, a new tropical system may form quickly this weekend. The National Hurricane Centre states that this weekend, a system with a medium likelihood of tropical development may resemble Alberto's path over the southwest Gulf of Mexico and into northeastern Mexico. Even though Alberto is not predicted to be as big as this one, it might still deliver additional rain to South Texas and raise new worries about flooding there and along the Gulf Coast.

• California is experiencing scorching temperatures once again: There are heat advisories in effect for portions of the state's south and centre, including Colusa County, where firefighters are attempting to contain the Sites Fire, which is consuming more than 19,100 acres. Expected highs of 100 to 106 degrees might make combating fires more difficult. The California Department of Forestry and Fire Protection reports that the state is experiencing an active early fire year. Over 89,700 acres have burnt since the year's beginning, up from 5,747 acres in the same period the previous year.

• "Disastrous floods" in Iowa: Governor Kim Reynolds of Iowa declared a state of emergency for 21 counties in the northwest on Saturday and ordered the deployment of all state resources to support Rock Valley and surrounding areas due to "catastrophic flooding." With heavy floodwaters, all homes in Rock Valley north of Highway 18 were being evacuated. Radar indicates that northern Iowa has received more than ten inches of rain, and there is a level 2 of 4 risk of heavy rainfall there on Saturday. Further east is where the strongest rain is predicted. Additionally, nine individuals have been rescued from rising water in adjacent Sioux Falls, South Dakota, in the last 24 hours as a result of severe rainfall, according to Regan Smith, the city's emergency manager.

• Flood threat in the fire zone: Following 0.5 inches of rain in the morning and with more rain predicted into the late afternoon, a flash flood warning was issued for Ruidoso and other New Mexico communities burnt by the South Fork Fire. Due to rain earlier in the week, burned regions erupted into a torrent of mud and water, causing a flash flood situation that required water rescues. Burn scarred ground cannot absorb water as well as other types of ground, hence it floods more readily.

Heat wave to get stronger and last longer this weekend

Through the weekend, further record-breaking high temperatures are anticipated as the heat spreads to new locations and gets stronger in others.The heat index, or how hot it feels, will rise to 100 to 105 degrees across a large region due to extreme heat and humidity, with 110 degrees possibly in the southern mid-Atlantic. Because people won't be able to chill down at night, record nightly low temperatures will raise health concerns. It might reach 100 degrees in the nation's capital for the first time in eight years. DC An extended heat emergency will be in effect over the weekend and into the next week, according to Mayor Muriel Bowser. According to the National Weather Service, the city may see widespread temperatures in the upper 90s or perhaps triple digits.

Wes Moore, the governor of Maryland, declared a state of preparation on Thursday in anticipation of the possibly dangerous heat wave. The National Weather Service has issued an excessive heat watch for most of the region for Saturday, predicting dangerously high temperatures that could feel like 105 to 110 degrees.

The fact that the heat wave is continuing raises severe concerns. Residents of New York City may expect temperatures as high as 90 degrees this weekend and throughout the first part of next week. It would be the longest June stretch the city has ever seen. The National Weather Service has issued a heat advisory for the city for the first time this year.

The state's emergency operations centre opened on Tuesday, according to Governor Kathy Hochul. Its purpose is to exchange resources and monitor circumstances with emergency management personnel in all 62 of the state's counties. Mayor Eric Adams of New York City said earlier this week that cooling centres would be open all across the city. The Pennsylvania Department of Public Health reports that Philadelphia has declared a heat-related health emergency that will last until Sunday at midnight. With temperatures anticipated to feel close to 99 degrees, Philadelphia has issued heat alerts through the weekend.

Heat advisories for New Jersey remain in force until 8 p.m. on Sunday, said the National Weather Service. Around 100 degrees will be felt throughout the state on Saturday and Sunday. The West is experiencing a strong resurgence of heat after a short respite. There are currently heat advisories in effect for parts of Utah, Arizona, and California. Through the weekend, temperatures in Salt Lake City, Las Vegas, Sacramento, and Bakersfield, California, are predicted to rise back up to 10 to 15 degrees above average.