The United States is facing a significant heat wave, with temperatures soaring across the country. The National Weather Service (NWS) has issued warnings about potentially hazardous conditions, with alerts stretching from the Plains to the Midwest and South.
The heat wave is impacting more than 20 cities, with extreme heat warnings and advisories predicting heat index values as high as 110 degrees in parts of Texas. Multiple states, including Missouri, Kansas, Iowa, Arkansas, and Tennessee, can expect temperatures exceeding 100 degrees.
The NWS emphasizes the increased risk of heat-related illnesses during these extreme conditions. They advise staying hydrated, limiting outdoor activities, and seeking air-conditioned spaces, especially during afternoon and evening hours.
The heat wave is expected to move across the central U.S. through midweek, reaching the East Coast by Friday. It will peak before easing over the weekend. The NWS warns that early-season heat waves can pose greater risks for heat-related illnesses, marking this event as the most significant heat of the summer.
Daily high temperature records might be broken this week, particularly across portions of the Upper Midwest and Great Lakes region on Wednesday. By Thursday and Friday, highs are expected to be 10 to 20 degrees above normal in areas like Michigan and the East and Northeast.
High temperatures are concentrated in the Northern Plains and upper Northeast, with North Dakota and South Dakota reaching into the 90s, and Kansas experiencing low 100s. Eastern states like Maine, New York, Vermont, and Massachusetts anticipate temperatures in the mid- to high-80s.
On Wednesday, high temperatures will ease in the Northern Plains but remain high in the Southern Plains, including Texas, Oklahoma, and Kansas. Michigan will see oppressive temperatures in the upper-80s or low-90s, while Maine and Vermont will stay warm.
California will also face rising temperatures, with central regions reaching mid- to upper-90s, and Southern California experiencing mid-100s.
By Thursday, California’s temperatures will be particularly high, with coastal areas in the upper 60s and 70s, and inland areas in the 100s. Michigan will remain hot, as will several East Coast states, including Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, New York, Connecticut, Delaware, and Virginia.
The South and Midwest will experience temperatures in the 90s.
Friday will bring relief to the central U.S., with temperatures falling to the low 80s in several states. However, the West will remain hot, especially in California, and Oregon will face temperatures in the upper-80s and mid-90s. The East Coast will continue with highs in the 90s to 100s, stretching from Florida to Connecticut. Northern states like Maine, Massachusetts, and New Hampshire will see highs in the 80s.
Heat Illness Symptoms
Watch for signs of heat-related illness, including heavy sweating, fatigue, dizziness, and headaches, along with nausea, muscle cramps, and excessive thirst. These symptoms often indicate heat exhaustion. The body struggles to cool itself and symptoms may include cool, pale, or clammy skin.
Severe symptoms suggest heat stroke, a life-threatening condition. Look for confusion, slurred speech, or loss of consciousness, coupled with high body temperature and hot skin that may not sweat much. These symptoms require immediate emergency attention.
Temperature Outlook
High temperatures across many states will persist at least until Friday, with the central U.S. seeing some relief. The West and Pacific Northwest will continue to experience rising temperatures into the weekend and early next week. However, below-average temperatures are expected in the central U.S. and Upper Midwest between June 14 and June 18.