Heat Wave and Storm Alerts Across the US

A weeklong heat wave has affected large parts of the US, with authorities reporting at least 25 potential fatalities. The situation remains critical for 40 million people facing heat alerts from the East Coast to the Southeast and Southwest.

Record High Temperatures

The Fourth of July saw temperatures reaching new heights in cities such as Washington, D.C., Baltimore, Raleigh, Norfolk, and Atlantic City. In Washington, D.C., a young visitor took precautions against the sun during the celebrations.

Heat alerts on Sunday continued into the evening. Cities like Philadelphia, Washington, Baltimore, Raleigh, Charleston, and Jacksonville experienced heat index values of 100 to 105 degrees, a measure indicating how hot it feels to the human body.

Forecasts suggest temperatures will decrease across the East Coast this week, with expectations of highs from the 70s to low 90s. In Washington, D.C., visitors tried to cool off with cold water during the celebrations on the National Mall.

Extreme Heat in the Southwest

In the Southwest, Arizona and California, including cities like Phoenix and Tucson, face extreme heat watches from Tuesday to Thursday. Daytime temperatures might soar to 114 degrees, posing a severe risk.

In New Jersey, 22 people across 10 counties are reportedly among the dead. Other fatalities occurred in Mississippi’s Hinds County and Illinois’ Cook County. New York City has seen over 378 emergency room visits for heat-related issues.

Storms Cause Damage

“Saturday’s storms brought over 540 damaging wind gusts across the US,” reported the National Weather Service’s Storm Prediction Center.

Strong gusts were recorded at 92 mph in Norman, Oklahoma, and 87 mph in Suffolk County, New York. Storm alerts on Sunday covered parts of the Plains, Southeast, and mid-Atlantic, potentially affecting 25 million people.

This includes areas like Philadelphia, Washington, Baltimore, and Arlington, where wind gusts could surpass 70 mph, with hail risks present. Nationwide tornado risks remain low. During July Fourth, high winds in Washington, D.C., blew dust into the air.

Storm and Flood Risks

Non-severe storms may still cause lightning and travel disruptions, affecting airports in Dallas, Nashville, Chicago, Cincinnati, Charlotte, Atlanta, New York, Philadelphia, and Washington. Flood alerts are in effect for 34 million people from Delaware to Connecticut through Monday, although severe weather risks have decreased.

Slow-moving storms with heavy moisture may trigger localized flash floods, especially in the mid-Atlantic. Rainfall rates of 2 inches per hour could lead to urban flash flooding in places like Philadelphia, New York, and Hartford, with a potential total of 2 to 8 inches of rain expected.