Heat Advisory Extended to 7 PM for South Texas Counties
The National Weather Service Brownsville TX has pushed the end of its heat advisory back to 7 PM CDT, extending the window beyond its original close.
4 reports on this incident · first at Sep 11, 2026, 1:17 a.m. ET
Earlier reports
Sep 11, 2026, 1:22 a.m. ET
Heat Advisory Upgraded to Warning for South Texas Counties
The National Weather Service Brownsville TX has upgraded its heat advisory to a heat warning for parts of South Texas, according to the agency's warning record. The warning takes effect at noon CDT on September 11, 2026, and expires at 7 PM CDT that evening.
The warning covers Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo, and Starr Counties — 10 zones in all, the record states. Cities listed in the warning area include Sarita, Harlingen, Mission, McAllen, Pharr, Port Mansfield, Edinburg, Raymondville, Port Isabel, Brownsville, Laguna Vista, Weslaco, Falfurrias, San Manuel, Roma, and Rio Grande City.
Heat index values up to 114 are expected, according to the warning record. Hot temperatures and high humidity may cause heat illnesses, the agency said.
The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. It also recommends taking extra precautions when outside, wearing lightweight and loose fitting clothing, and limiting exercise and strenuous activities to early morning or evening. The agency said people should take action when they see symptoms of heat exhaustion and heat stroke, noting that heat related illnesses increase significantly during extreme heat and high humidity events.
Sep 11, 2026, 1:22 a.m. ET
Weather Service Warns Heat Advisory Conditions May Cause Heat Illnesses in South Texas
The National Weather Service Brownsville TX says hot temperatures and high humidity may cause heat illnesses under the Heat Advisory it has issued for South Texas, according to the advisory. The office states that heat-related illnesses increase significantly during extreme heat and high humidity events.
The advisory is in effect from noon to 7 PM CDT on Friday, September 11, 2026, with heat index values up to 114 expected, according to the Weather Service. It covers Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo and Starr Counties — ten zones in all, the advisory states.
The Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. It says people should take extra precautions when outside, wear lightweight and loose fitting clothing, and try to limit exercise and strenuous activities to early morning or evening. The office also advises taking action when symptoms of heat exhaustion and heat stroke appear.
The advisory lists Sarita, Harlingen, Mission, McAllen, Pharr, Port Mansfield, Edinburg, Raymondville, Port Isabel, Brownsville, Laguna Vista, Weslaco, Falfurrias, San Manuel, Roma and Rio Grande City among the communities covered. It was issued at 12:11 AM CDT on September 11, 2026, according to the Weather Service.
Sep 11, 2026, 1:17 a.m. ETFirst report
Heat Advisory to Take Effect at Noon in South Texas, Heat Index Up to 114 Expected
The National Weather Service Brownsville TX has issued a Heat Advisory for ten counties in South Texas, according to the agency's advisory record. The advisory begins at noon CDT on September 11, 2026, and remains in effect until 7 PM CDT that evening, with heat index values up to 114 expected.
The advisory covers Brooks, Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo, and Starr Counties. Cities listed in the advisory include Sarita, Harlingen, Mission, McAllen, Pharr, Port Mansfield, Edinburg, Raymondville, Port Isabel, Brownsville, Laguna Vista, Weslaco, Falfurrias, San Manuel, Roma, and Rio Grande City.
The National Weather Service warns that hot temperatures and high humidity may cause heat illnesses. The agency advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking up on relatives and neighbors. It also recommends taking extra precautions when outside, wearing lightweight and loose fitting clothing, and limiting exercise and strenuous activities to early morning or evening. The agency says to take action when seeing symptoms of heat exhaustion and heat stroke, noting that heat related illnesses increase significantly during extreme heat and high humidity events.
The advisory was issued at 12:11 AM CDT on September 11, 2026.
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