Tulsa, Oklahoma – Highs across eastern Oklahoma and west-central Arkansas could push into the upper 80s and low 90s by Tuesday afternoon, bringing the first significant heat stress of the season and the potential for heat index values exceeding 95 degrees.
According to the National Weather Service in Tulsa, the early heat event will build through the afternoon, particularly impacting communities along the Arkansas River Valley, including Tulsa, Fort Smith, and McAlester. Areas shaded in purple on the latest outlook map show a 50-70% chance of dangerous heat index levels by mid-afternoon.
Residents are urged to monitor conditions and take precautions against heat-related illnesses. Officials recommend wearing loose-fitting, light-colored clothing, staying hydrated, and taking breaks in shaded or air-conditioned areas. Those working outdoors—especially in agriculture or construction—should take extra care.
This early-season heat follows an unusually mild spring, making the abrupt rise in temperatures more dangerous, especially for vulnerable populations. The heat is expected to peak today but could return later this week as high pressure builds.
Stay tuned for updated advisories, and check in with local weather services as conditions may shift quickly.
