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🟡 Moderate
Heat Advisory
Brazoria Islands
Heat Advisory issued June 18 at 9:56AM CDT until June 20 at 10:00PM CDT by NWS Houston/Galveston TX
Alert Description
* WHAT...Heat index values up to 108 expected. * WHERE...Brazoria Islands County. * WHEN...From 8 PM this evening to 10 PM CDT Saturday. * 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. 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.
Time Information
Effective
Jun 19, 2026, 1:00 AM
Expires
Jun 19, 2026, 2:00 AM
Issued
Jun 18, 2026, 2:56 PM
Alert Details
Severity
Moderate
Urgency
Expected
Certainty
Likely
Category
Met
Issued By
NWS Houston/Galveston TX
National Weather Service