Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns

Canadian wildfire smoke will push into the Midwest, worsening air quality. A frontal system brings severe storms from the Northern Plains to the Mid‑Atlantic the next few days. Heavy Gulf Coast rain is possible as we closely monitor tropical development, while monsoonal storms persist in the Southwest with heavy rainfall. Hazardous heat expands from the Plains into the Lower Mississippi Valley. Read More >

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Last Map Update: Sun, Jul 19, 2026 at 10:10:48 am CDT

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Heat Advisory

Extreme Heat Watch

Hazardous Weather Outlook

Heat Advisory Today

Dangerous Heat Monday & Tuesday

Heat Index Forecast

Forecast Summary

A Heat Advisory is in effect for much of northeast and east central Oklahoma and west-central Arkansas from 1 PM until 8 PM this evening for heat indices of 105 to 110 degrees. The heat will further intensify and become more widespread across eastern Oklahoma and western Arkansas on Monday and especially on Tuesday. Stay inside air conditioned buildings, if possible, drink plenty of fluids if outdoors for prolonged periods of time, and wear lightweight, loose-fitting, and light-colored clothing, and take frequent breaks if working outside over the next few days.

Heat will intensify Monday and especially on Tuesday as upper level high pressure strengthens. Afternoon heat indices of 100-110 F, locally higher will occur on Monday. Even hotter heat indices will occur on Tuesday, with afternoon values reaching between 105-112 F, locally higher. Heat precautions should be taken for any extended time outdoors.

Heat is expected to intensify the next few days. Afternoon heat indices of 100-110 F, locally higher through Tuesday, are expected. Heat precautions should still be taken for any extended time outdoors.

Low storm chances will occur again today. Dangerous heat develops today through Tuesday, possibly beyond.

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Severe Thunderstorms; Excessive Rainfall; Dangerous Heat; Air Quality Concerns

NWS Forecast Office Tulsa, OK