Riley Laychuk's Manitoba forecast for Thursday, July 3, 2025
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Yahoo
an hour ago
- Yahoo
Big heat coming to western US following Independence Day weekend
Heat is poised to build over much of the western United States next week and may challenge the highest temperatures of the season so far, along with boosting an already volatile wildfire risk, AccuWeather meteorologists caution. The heat will arise following typical summer conditions for much of the West for the Independence Day weekend. "At its peak during the first full week of July, some places will be 15 degrees above average, and isolated spots could be as much as 20 degrees Fahrenheit above the historical average," AccuWeather Senior Meteorologist Heather Zehr said. "This could be an extended stretch of heat away from the Pacific coast." July typically brings the highest temperatures of the year on average to the interior West, so when forecasts call for readings of 15-20 degrees above that level, it is significant, even for the middle of summer. Once the heat wave begins to build and the strength of the weather setup is realized, high temperature adjustments to the forecast are likely. Temperatures could rival season-high marks set during late May and June. The hottest it's been in Phoenix, Arizona, and Palm Springs, California, is 117, while Las Vegas has reached 110, with Salt Lake City hitting 104 and Fresno and Sacramento, California, touching 102. "A large area of high pressure will start to build over northwestern Mexico and the interior Southwest through this weekend," Zehr explained. "The high pressure area will cut off tropical moisture that has been bringing rounds of drenching thunderstorms and dust storms recently to the interior West. As the high strengthens early next week, it will also expand to the north and west, reaching interior portions of the Northwest as well as California." The heat wave is not likely to eclipse season highs along the immediate coast of California. Downtown Los Angeles reached 99 on May 10. San Francisco peaked at 81 in early May. However, as Zehr pointed out, some heat will surge into the Northwest, and temperatures will climb in coastal areas of Washington and northern Oregon next week where highs of 96 in Portland, Oregon, and 90 in Seattle, so far this season, could be the app? Unlock AccuWeather Alerts™ with Premium+ Wildfires already causing trouble in the West Existing drought conditions and dry vegetation have already been contributing factors to an active wildfire season. One of the most recent fires broke out in the mountains of San Luis Obispo County, California. In a matter of hours, the Madre Fire grew rapidly in size to 35,000 acres as of Thursday morning and has already become the state's largest wildfire of 2025 so far. In prior decades, wildfires occurred predominantly during the late summer and autumn seasons. However, with vast areas of drought and episodes of strong winds becoming more routine, wildfires are becoming a year-round problem in the West. Wildfires have been especially troublesome over the southern Canadian Prairies this spring and summer. Northwest breezes have occasionally sent a considerable amount of smoke from those fires into the central and eastern United States. People are urged to exercise extreme caution with campfires, fireworks and power equipment. "The building heat into next week will further dry out the vegetation and raise the risk of wildfire ignition next week and beyond," Zehr said. "We are not seeing any mechanism to bring widespread rainfall to areas from the Great Basin to the Pacific coast, which is not surprising." The North American monsoon became active in recent days, and that was the main cause of the surge in showers and thunderstorms over the interior Southwest this week. However, with drier air working in and shunting the plume of moisture off to the east, downpours will be limited at best over the southern Rockies next week. A small amount of moisture left in the atmosphere could trigger spotty, but mainly dry, thunderstorm activity over the interior Southwest this weekend to next week. Dry thunderstorms still produce lightning strikes, which could spark new wildfires. Fortunately, light winds appear to be in store, which should limit the risk of rapidly spreading fires, except for freak local conditions. Taking extended, ill-advised hikes over the interior West can be hazardous. In addition to the ever-present risk of snakes and other wildlife, the midsummer sun and heat can be highly unforgiving. And, on a number of days during the mid- to late summer, afternoon thunderstorms can bring the risk of sudden lightning strikes and flash flooding over the rugged terrain. Want next-level safety, ad-free? Unlock advanced, hyperlocal severe weather alerts when you subscribe to Premium+ on the AccuWeather app. AccuWeather Alerts™ are prompted by our expert meteorologists who monitor and analyze dangerous weather risks 24/7 to keep you and your family safer.
Yahoo
an hour ago
- Yahoo
Calgary Stampede, Osheaga and more: A doctor's tips on heat safety, hydration and substance control for summer festivals in Canada
Between the Calgary Stampede, Ottawa Bluesfest and Osheaga in Montreal, festival season across Canada has officially kicked off. While many Canadians last year faced scorching hot temperatures that reached highs of 40 degrees Celsius, this year currently seems to be a bit cooler, with only a couple parts of the country under heat warnings. As of July 4, Environment Canada has issued heat warnings for southeastern Manitoba, parts of western Ontario and most of southern Ontario, including the Greater Toronto Area. In these areas, Canadians can expect to see daytime high temperatures in the low 30s, with some parts feeling up to 40 degrees with humidity. The rest of the country might not be under a heat warning, which should allow for a comfortable start to this year's Calgary Stampede, running from July 4 to 13. But since it's summer, Canadians should still anticipate more heat later this month and in August. As the season runs its course, it's probably a good idea to think about staying safe and hydrated if you plan to have fun under the sun. This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis or treatment. Contact a qualified medical professional before engaging in any physical activity, or making any changes to your diet, medication or lifestyle. While dramatically high summer temperatures might be a cause for concern, does that mean you should be skipping these outdoor celebrations altogether? Not necessarily, but it's a good idea to be cautious about what your body can handle and what you should do to prevent heat-related health problems. "People are preoccupied with what's happening and they don't want to leave, or there are crowded conditions and it's difficult to move around, and the heat can be intense," Dr. Mike Howlett, president of the Canadian Association of Emergency Physicians, told Yahoo Canada about summer festivals in 2024. "So, a couple of things are at issue." The Dalhousie University associate professor said for one, people need to be aware of their hydration and they should drink fluids as they spend time outside during these festivals. Additionally, festivalgoers should be concerned about heat exposure, especially as temperatures rise in Canada due to climate change. "While hydration is important, also the amount of heat exposure and the warming up of your body temperature past what it can manage is another issue," he noted. "They're related, but not identical." One way Howlett suggested people avoid any possible health problems during summer festivals is by taking frequent breaks, particularly from "hostile" environments: "If you're finding it extensively hot and and humid, then finding shade, finding cool areas as well as having enough fluids to drink and the ability to cool off a little bit is important." Moreover, Howlett recognized summer festivals are often events where people consume alcohol or drugs, but he warned people to stay safe while using such substances. For instance, intoxicants can sometimes make it easier for issues like heat exhaustion, heat stroke and dehydration to happen. Older adults and younger children should also take higher precautions, since they likely don't have as much resilience to dehydration and heat than other people. Additionally, Howlett urged people who have underlying medical problems, such as diabetes, heart or lung disease, kidney problems or other health issues, should also be more careful about taking breaks and being hydrated. Finally, he recommended people wear loose-fitting light clothing, use hats and apply sunscreen if they're planning on spending time at an outdoors festival: "It's better to make a plan where you're going to take breaks out of the sun, where you're going to have lots of fluids, use hats and if you have medical problems, be more careful and avoid substances that are intoxicants that lower your ability to pay attention to what's happening." Glen Kenny, a University of Ottawa professor and director of the Human and Environmental Physiology Research Unit, previously told Yahoo Canada that heat is a "silent killer." Howlett reiterated that sentiment, noting heat-related health problems can easily "sneak up on people." Howlett added that heat stroke is basically an extreme version of heat exhaustion, where "your body has totally lost its ability to control its core temperature." In that case, your temperature will rise dramatically, leading to serious ailments like coma or seizures. "For every 10 minutes that you're not treated, it increases your death rate," he warned. "So, it's extremely important not to get to that state in the first place. Before that happens, you want to pay attention to things like if you're excessively tired and really worn out and fatigued more than usual for yourself, if you're starting to get dizzy and lightheaded." According to the Canadian Red Cross, heat-related health problems arise when someone is dehydrated — and they can happen to anyone who stays in the heat or under the sun for too long. There are key differences between heat exhaustion and heat stroke that everyone should recognize. Signs and symptoms of heat exhaustion and heat stroke Heat exhaustion Heat stroke Skin Moist, warm Dry, hot Physical Headache, weakness, exhaustion, nausea, vomiting, fainting Seizures, coma, severe headache Mental Anxiety, dizziness Altered behaviour, irritable, aggressive, bizarre Breathing Normal Rapid, shallow "If those things are happening, you should not go back out until it's settled over, which is not an hour or two," Howlett said. "It's like two or three days before you should go back out again." Moreover, the Canadian Red Cross indicated you should immediately call 9-1-1 if someone has heat exhaustion if they're nauseous, vomiting, fainting, dizzy and have anxiety. If they have heat stroke and present any of the listed symptoms, call emergency services. While alcohol is a fluid, you don't want to make the mistake that it's keeping you hydrated: "Anything with alcohol in it will tend to dehydrate you," Howlett shared. While consuming alcohol, the body releases an antidiuretic hormone called vasopressin, according to Cleveland Clinic. This hormone works with your kidneys to help balance your body's fluids. However, alcohol is also a diuretic, which means it increases your need to urinate and, in turn, lose fluid. The best way to counteract this is to stay on top of how much water you're drinking. While a common recommendation is to drink around eight glasses of water a day, the actual required amount of water someone should drink daily depends on the person. While drinking alcohol, Cleveland Clinic dietitian Julia Zumpano suggested drinking eight to 12 ounces of water for every alcoholic beverage you consume. That will help slow your alcohol intake and mitigate the effects of the next morning's hangover. When it comes to drugs, there are some that simply don't mix well with the sun. Howlett shared substances like ecstasy, cocaine or others within the amphetamines group can cause their own heat-related health problems. For one, he said it's possible they can cause a heat-related injury even without being in a hot environment. Moreover, they can make people become more active than they usually are, causing their body temperature to increase. Other substances that might alter your cognition could present other issues. For instance, some might make you more drowsy or less oriented than usual, possibly causing you to fall asleep or remain under the sun for longer than you normally would. While recreational drugs might be one concern, there are some medications that might also impact someone's sensitivity to heat. According to New Brunswick Public Health, there are several medications you should modify how you take if you're spending time outside in the heat: Common medications including some antihistamines (like Benadryl), over-the-counter sleeping pills and anti-diarrhea pills Psychiatric drugs like chlorpromazine, thioridazine, perphenazine, fluphenazine and more Anti-parkinson drugs like benztropine, biperiden, ethopropazine and more Anti-depressants like amitriptyline, doxepine, clomipramine and more There's no doubt summer festivals are exciting events that draw thousands of people in, but there are certain risks festivalgoers must be aware of before they head out in the sun for the day. During Osheaga 2023 at Montreal's Parc Jean-Drapeau, paramedics responded to a dozen cases, four of which required hospitalization, according to the Canadian Press. Howlett noted even though someone might be young and healthy, they shouldn't automatically believe they're immune to heat-related health problems. Still, he said festivals with prolonged days or multi-day events likely aren't the best places to bring young children or seniors. Either way, he urged people to practice "common sense things" like not leaving your children in unshaded areas for long amounts of time and instead take precautions when heading outside. "Dehydration, heat exhaustion, progressing to more serious states, it's a real thing. It's something you have to pay attention to," Howlett shared. "There's a reason why these major festivals hire ambulance services and paramedics to help. ... It's a big potential risk."


Washington Post
4 hours ago
- Washington Post
A short-lived tropical storm could soon form near the Southeast
A disturbance located about 100 miles offshore of the northeast Florida Coast could become a short-lived tropical depression or storm over the holiday weekend. Heavy rains and rip currents will be possible for parts of Florida, Georgia and the coastal Carolinas, and the storm could even get a name. The National Hurricane Center has the odds of development at 60 percent.