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🟡 Moderate
Heat Advisory
Tillman; Stephens; Carter; Johnston; Atoka; Marshall; Bryan
Heat Advisory issued June 18 at 1:27AM CDT until June 18 at 8:00PM CDT by NWS Norman OK
Alert Description
* WHAT...Heat index values up to 107 expected. * WHERE...Atoka, Bryan, Johnston, Marshall, Carter, Stephens, and Tillman Counties. * WHEN...From 1 PM this afternoon to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Safety Instructions
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Time Information
Effective
Jun 18, 2026, 6:00 PM
Expires
Jun 18, 2026, 8:30 PM
Issued
Jun 18, 2026, 6:27 AM
Alert Details
Severity
Moderate
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Norman OK
National Weather Service