On Thursday, August 6, the National Weather Service's Weather Prediction Center warned that a sprawling dome of high pressure across the Great Basin and the Four Corners will push dangerously hot weather into the Southwest, Intermountain West, Rockies, and central and southern Plains through the weekend. Highs will surge well into the 90s and 100s, with widespread Major to locally Extreme HeatRisk and numerous daily temperature records possible Friday through Sunday. For people with gout, this heat wave carries a specific concern: heavy sweating drives fluid loss, and dehydration can concentrate uric acid in the blood, a change that may increase flare risk. Here is what to know and a practical weekend hydration plan.
A heat dome that now covers new territory
The Weather Prediction Center described the setup on Thursday as a sprawling dome of high pressure amplifying across the Great Basin and the Four Corners through Saturday. From there the heat spreads east and north, into the Southwest, the Intermountain West, the Rockies, and the central and southern Plains. Highs will surge well into the 90s and into the 100s, with widespread Major to locally Extreme HeatRisk and numerous daily temperature records likely from Friday through Sunday.
What makes this stretch different from earlier heat events this summer is geography. Much of the region under the dome now — parts of the Plains and Midwest — is not used to days like these. People who live with intense heat have routines: shaded houses, early errands, air conditioning. When the heat arrives in places less practiced at managing it, the risk of heat stress climbs faster, and so does the fluid loss that comes with simply being outside.
Forecasters are also watching the nights. Record or near-record minimum temperatures are possible across the southwestern and south-central United States, which means little overnight relief and a body that never fully recovers from each day's heat load. For gout, the overnight piece matters too, but the daytime fluid balance is where the weekend is won or lost.
Why heat and dehydration matter for gout
Uric acid travels through the bloodstream in solution. When blood volume falls — which is what heavy sweating and light drinking produce — the same amount of uric acid is carried in less fluid, so its concentration rises. The hyperuricemia literature repeatedly emphasizes that uric acid balance depends on both what goes in (purines) and how efficiently the body clears urate. Kaneko and colleagues' work on the purine content of common foods, published in Biological and Pharmaceutical Bulletin, is a standard reference here; heat stress complicates the clearance side, because reduced circulating volume can mean less efficient kidney handling of urate.
Dehydration is not the only heat-adjacent risk. Hot evenings push many people toward alcohol as a "cool down," and alcohol is a poor trade for gout: it is a diuretic, it increases urate production, and it decreases urate excretion. In the prospective cohort by Choi and colleagues in the Lancet, beer and liquor were each associated with a higher risk of gout attacks. The 2020 American College of Rheumatology guideline likewise advises limiting alcohol, particularly during flares.
Sugar-sweetened drinks are the other reflexive choice on a hot day. They feel like rehydration, but Choi and Curhan's 2008 BMJ cohort found sugar-sweetened beverages were associated with an increased risk of gout — largely through fructose. Neither alcohol nor sweetened drinks earns a place in a gout-friendly heat plan.
A practical weekend hydration plan
Start with water and sip steadily. In extreme heat, thirst is a lagging signal — by the time you feel thirsty, you are already behind. Keep water accessible, drink at regular intervals, and rehydrate after any stretch outside. A simple informal gauge many clinicians mention is urine color: generally light, straw-like urine suggests you are on track, while dark urine says drink more.
Consider low-fat milk as a hydration beverage with a gout-specific plus. Dairy has a long, consistent association with lower gout risk in cohort work by Choi and colleagues in the New England Journal of Medicine, and low-fat dairy in particular has shown urate-lowering associations in some analyses. A glass of low-fat milk alongside meals adds fluid, protein, and calcium. You can search "milk" in the FoodCanEat database to compare dairy options.
For electrolytes, choose food before sports drinks. Potassium and magnesium are abundant in whole plant foods — avocado, banana, broccoli, and leafy greens — and these foods are water-rich, so they double as hydration. The FoodCanEat food pages let you look up individual items, but the pattern is simple: half your plate plants, plenty of water.
Plan alcohol-free evenings while the dome persists. If the day has been hot, alcohol is the beverage most likely to worsen both dehydration and urate balance. The alcohol and gout guide covers the specifics; the heat-wave version is simple — skip it or keep it minimal, and pair any drink with water.
Let meals carry some of the fluid load. Water-rich fruits and vegetables, broths, and lighter proteins contribute water across the day, and smaller, more frequent meals are easier to manage than one heavy dinner. A big plate of concentrated protein and salty processed food does little for fluid balance on a 100-degree day.
Check on the people most at risk
The dome is expanding into regions where vulnerable people may be less prepared, and older adults with gout deserve a check-in. Thirst sensation, kidney function, and heat regulation all weaken with age, and many older adults take medications that affect fluid balance. A short call — have you drunk anything today, is the house cool, do you need water — can make the difference between a manageable weekend and a hospital visit.
This is also the weekend to be conservative with plans. Exercise in the coolest hours, keep outdoor sessions short, and take dizziness, confusion, or reduced urination seriously. Heat illness is not a gout problem, but the dehydration that accompanies it is — and both deserve the same respect.
Frequently Asked Questions
Can dehydration really contribute to a gout flare?
Yes, in a mechanical sense. Uric acid is carried in the blood, and when sweating depletes circulating volume, uric acid becomes more concentrated even without any change in diet. Heat stress also reduces kidney blood flow, which can slow urate excretion. Researchers and clinicians commonly list dehydration among flare triggers, and many gout patients report flares after days of heavy sweating with little fluid intake. Staying hydrated does not guarantee flare-free weekends — flares have many inputs — but it removes one controllable contributor.
What should I drink during a heat wave if I have gout?
Water should be the default, sipped steadily through the day rather than gulped all at once. Low-fat milk is a reasonable secondary option that adds protein and calcium and has been associated with lower urate levels in some studies. Tea and coffee, consumed without heavy sugar, are usually acceptable in moderation. What to avoid as thirst quenchers: alcohol, especially beer, and sugar-sweetened beverages, both of which are associated with higher gout risk.
Is it okay to have an evening beer when it's hot?
It is the worst possible thirst quencher for someone with gout. Alcohol is dehydrating, and in the Choi 2004 Lancet study, each additional beer per day was associated with a substantial increase in gout risk — beer's purine load compounds the effect. The 2020 ACR guideline likewise recommends limiting alcohol, particularly during flare-ups. On a heat-wave weekend, substitute sparkling water, iced tea, or a low-fat milk smoothie and save the beer for a cooler day — if your healthcare team agrees it is safe at all.
References: Choi HK, Atkinson K, Karlson EW, et al. Alcohol intake and risk of incident gout in men: a prospective study. Lancet. 2004;363:1277-1281. | Choi HK, Curhan G. Soft drinks, fructose consumption, and the risk of gout in men: prospective cohort study. BMJ. 2008;336:309-312. | Kaneko K, Aoyagi Y, Fukuuchi T, et al. Total purine and purine base content of common foodstuffs for facilitating nutritional therapy for gout and hyperuricemia. Biol Pharm Bull. 2014;37:709-721. | FitzGerald JD, Dalbeth N, Mikuls T, et al. 2020 American College of Rheumatology Guideline for the Management of Gout. Arthritis Care Res (Hoboken). 2020;72:744-760.