Weather Alerts For Fort Smith, AR

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT FRIDAY # DETAILS -------------------- WHAT Heat index values from 105 to 110 each afternoon and overnight lows from the mid 70s to lower 80s expected. WHERE All of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. WHEN Until 8 PM CDT Friday. IMPACTS Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. ISSUED AT Tuesday, August 11, 2026 at 11:47 PM CDT ISSUED BY National Weather Service Tulsa OK HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. # AREAS AFFECTED -------------------- Central Le Flore, Delaware, McIntosh, Northern Le Flore, Washington OK, Adair, Benton, Carroll, Central and Southern Franklin, Central and Southern Sequoyah, Cherokee, Choctaw, Craig, Creek, Haskell, Latimer, Madison, Mayes, Muskogee, North and Central Sebastian, Northeast Osage, Northern Crawford, Northern Franklin, Northern Sequoyah, Nowata, Okfuskee, Okmulgee, Ottawa, Pawnee, Pittsburg, Pushmataha, Rogers, Southeast Osage, Southern Crawford, Southern Le Flore, Southern Sebastian, Tulsa, Wagoner, Washington AR, Western Osage Including the cities of Bentonville, Miami, Jay, Marble City, Wilburton, Clayton, Tulsa, Mansfield, Hartford, Spiro, Poteau, Berryville, Hugo, Nowata, Jethro, Huntington, Talihina, Hominy, Grove, Cecil, Okemah, Pawhuska, Pawnee, Fayetteville, Rogers, Arkoma, Van Buren, Okmulgee, Watalula, Paradise, Wagoner, Tahlequah, Muskogee, Lonelm, Checotah, Pryor, Barnes, Eureka Springs, Sallisaw, Sapulpa, Vinita, Patterson, Huntsville, Antlers, Stigler, Mountainburg, Fort Smith, Liberty, McAlester, Shidler, Claremore, Stilwell, Bartlesville, Ozark, Springdale, Panama, Cravens, Charleston, Fairfax, and Pocola