September 6, 2026

Heat is the active weather across this region, and it covers four of the five states.

The National Weather Service office in Norman has a heat advisory until 7 PM Central Sunday for a broad band of Oklahoma including Oklahoma City, Norman, Enid, Stillwater, Lawton, Ardmore, and Durant, along with Blaine, Caddo, and Kiowa counties and the adjacent north Texas counties of Wilbarger and Wichita. The Fort Worth office has one until 8 PM Central for the Dallas and Fort Worth metropolitan counties: Montague, Cooke, Grayson, Wise, Denton, Collin, Tarrant, Dallas, Rockwall, Kaufman, Van Zandt, Rains, Johnson, Ellis, Henderson, and Navarro.

The Shreveport office has a heat advisory until 4:30 PM Central covering southwest Arkansas, including Sevier, Howard, Little River, Hempstead, Nevada, Miller, Lafayette, Columbia, and Union counties, and northwest Louisiana, including Caddo, Bossier, Webster, Claiborne, Lincoln, Union, Bienville, Jackson, and Ouachita parishes. The Jackson office has one until 6 AM Central covering southeast Arkansas and northeast Louisiana, including Ashley, Chicot, Morehouse, West Carroll, East Carroll, Richland, Madison, Franklin, Catahoula, Tensas, and Concordia.

A heat advisory is issued when the combination of heat and humidity is expected to reach a level that makes heat illness likely for people who are exposed to it for a while, particularly those working or exercising outdoors. It sits a step below an extreme heat warning. The difference that matters to a household is not the label but the duration: a Sunday advisory that expires in the evening is a different thing from a multi-day warning, and the response scales accordingly.

New Mexico carries no active alerts this morning. Neither does the southern half of Texas nor south Louisiana.

The Ross fire in Texas is the largest incident in the Southern geographic area and the one worth naming. It stands at 90,400 acres and 38 percent contained, with 157 structures threatened, in the National Interagency Fire Center report dated September 5 at 7:30 AM Mountain time. That is the figure from yesterday morning and it is roughly a day behind this brief.

Also in the Southern area: the Railroad South fire in Oklahoma at 515 acres and 40 percent contained with one residence threatened, the Alexander Trail fire in Oklahoma at 1,600 acres and 70 percent contained, the Crumb Creek fire in Oklahoma at 260 acres and 85 percent contained, the Wright fire in Oklahoma now fully contained, and the West Glover fire in Arkansas at 499 acres and 75 percent contained.

In New Mexico, the Frijoles fire is at 15,483 acres and 77 percent contained, the Whiskey fire at 393 acres and 30 percent contained, the Mogote Ridge fire at 112 acres and 70 percent contained, and the Sunset fire at 145 acres and 80 percent contained.

The national wildfire preparedness level is 4 of 5, with year to date totals of 53,030 fires and 8,307,707 acres.

No grid emergencies or open federal disaster declarations are reported for the five states this morning.

Heat is the health item across four states today. The Centers for Disease Control and Prevention's guidance, reviewed July 20, 2026, is to stay cool, stay hydrated, and know the symptoms.

Two specifics from that guidance are worth carrying into a day like this one. Use fans only when indoor temperatures are below 90 degrees Fahrenheit, because above that a fan can raise body temperature rather than lower it. And check on family, friends, and neighbors, particularly people who live alone or have chronic medical problems. The groups the agency names as higher risk are people over 65, infants and young children, people with heart disease, people with asthma, pregnant women, and anyone working or exercising outdoors.

The symptoms it lists are muscle cramping, unusually heavy sweating, shortness of breath, dizziness, headache, weakness, and nausea. If you cannot cool your home below 90 degrees, the agency's suggestion is to find a location that is air conditioned, and it names dialing 2-1-1 or contacting your local health department or emergency management agency as ways to locate one.

The agency also makes a point that is easy to miss: many medicines cause dehydration or overheating, and some need to be kept out of hot places. That is a conversation with a pharmacist rather than a reason to change anything on your own.

No air quality alerts or boil-water advisories are active. The Health Alert Network archive could not be read this run, so this brief makes no claim about national health advisories in either direction.

Two things are worth watching here over the next week, and they are connected.

The first is drought. The United States Drought Monitor map valid September 1 and released September 3 describes deteriorating conditions in Texas, particularly in deep south Texas and the southwest, and a flash drought developing from Texas through Oklahoma and into Kansas. Flash drought is the term for drying that happens over weeks rather than seasons, usually driven by heat and wind rather than by a long rainfall deficit. It is why fire danger in this region can climb faster than a rainfall chart would suggest.

The second is the fire behavior that follows from it. The Ross fire at 90,400 acres and 38 percent containment is not a fire that is winding down, and the heat over Oklahoma and north Texas is the same heat that is drying the fuel. For households in the counties near an active fire, the useful posture is knowing your evacuation route before you are asked to use it, keeping vehicle fuel above half, and having the household documents and prescriptions in one place that can be picked up in a single trip.

The wider version of that applies across the region even where no fire is burning. Defensible space is the work of a weekend rather than an afternoon: clearing dead vegetation and leaf litter within about five feet of the house, moving firewood stacks away from walls, and cleaning the gutters, which is where embers land and find fuel.

The heat itself should ease. The advisories expire Sunday evening, and the region has been in a pattern of heat arriving in blocks rather than settling in. September blocks are shorter than August blocks, which is the seasonal direction even when the individual day does not feel like it.