Tulsa, Oklahoma – Oklahomans face increasing heat stress risk Wednesday as soaring humidity and temperature levels combine with direct sun exposure to create dangerous conditions, especially for those working outdoors.
According to the National Weather Service in Tulsa, maximum wet-bulb globe temperatures — a measure that factors in humidity, wind, sun angle, and cloud cover — are peaking across central and eastern Oklahoma, including Tulsa, McAlester, and Fort Smith. Values in many areas are triggering the “elevated” category, meaning those exposed to direct sunlight may require frequent breaks and hydration to avoid heat illness.
Communities such as Bartlesville, Muskogee, and Fayetteville are also experiencing near-critical levels on the heat stress index, especially during peak afternoon hours. Workers in construction, agriculture, or other outdoor settings are advised to take extra precautions, including wearing light clothing, drinking water regularly, and rotating out of the sun when possible.
The heat will persist into the evening, with little relief expected until a slight temperature dip late Thursday. Officials may issue further advisories if humidity remains elevated.
