Weather Alerts For Brownsville, TX

# HEADLINE -------------------- HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM CDT THIS EVENING # DETAILS -------------------- WHAT Heat index values up to 114 expected. WHERE Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo, and Starr Counties. WHEN From noon today to 7 PM CDT this evening. IMPACTS Hot temperatures and high humidity may cause heat illnesses. ISSUED AT Friday, September 11, 2026 at 12:11 AM CDT ISSUED BY National Weather Service Brownsville TX HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- 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 exercise and strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Heat related illnesses increase significantly during extreme heat and high humidity events. # AREAS AFFECTED -------------------- Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo, Starr Including the cities of Sarita, Harlingen, Mission, McAllen, Pharr, Port Mansfield, Edinburg, Raymondville, Port Isabel, Brownsville, Laguna Vista, Weslaco, Falfurrias, San Manuel, Roma, and Rio Grande City

# HEADLINE -------------------- FOR PEAK HEAT INDICES BETWEEN 108F AND 111F DEGREES FRIDAY AFTERNOON # SUMMARY -------------------- The combination of hot temperatures and elevated humidity levels will produce heat index values between 108 and 111 degrees for several hours Friday afternoon into Friday evening. A few locations may briefly experience heat index values above 111 degrees. If you plan to spend time outside, drink plenty of water, wear light weight and light colored clothing and take frequent breaks from the heat. Young children and pets should never be left unattended in vehicles. # DETAILS -------------------- ISSUED AT Thursday, September 10, 2026 at 9:19 PM CDT ISSUED BY National Weather Service Brownsville TX HEADER Special Weather Statement # AREAS AFFECTED -------------------- Coastal Willacy, Inland Willacy, Brooks, Coastal Cameron, Coastal Kenedy, Inland Cameron, Inland Kenedy, Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr, Zapata Including the cities of Zapata, Hebbronville, Falfurrias, Sarita, Rio Grande City, Roma, McAllen, Edinburg, Pharr, Mission, Weslaco, Raymondville, Brownsville, Harlingen, San Manuel, Port Mansfield, Port Isabel, and Laguna Vista

Pollen Index: 9.9 Pollen Level: high Predominant Pollen: Ragweed, Chenopods and Elm. Based on past pollen counts and expected weather conditions, pollen levels for Saturday will be higher than they were today and extend further into the very high range. This higher level is caused in part by rising temperatures, strong winds and lower relative humidity.