WWUS74 KTSA 301818 NPWTSA Extreme Heat Warning National Weather Service Tulsa OK 118 PM CDT Thu Jul 30 2026 OKZ060>062-066-067-070-071-073-074 /O.CON.KTSA.XH.W.0009.000000T0000Z-260731T0200Z/ Tulsa-Rogers-Mayes-Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg-Haskell ...EXTREME HEAT WARNING IN EFFECT FROM NOON TO 9 PM CDT FRIDAY... ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 111 expected. * WHERE...Muskogee, Mayes, Okmulgee, Rogers, Tulsa, Wagoner, Haskell, McIntosh, and Pittsburg Counties. * WHEN...For the first Extreme Heat Warning, until 9 PM CDT this evening. For the second Extreme Heat Warning, from noon to 9 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1..