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Extreme heat events are becoming more common, and communities are learning to adapt

Extreme heat events are becoming more common, and communities are learning to adapt

People who attended the Hinterland Music Festival this summer spent a day outside watching performances in 106-degree heat.

With climate change, extreme weather events are becoming increasingly common, and extreme heat is part of the package. Some people are coming up with creative — and sometimes expensive — ways to cope. IPR’s Lindsey Moon revisits the Hinterland music festival to find out about one of those.

We’ll also find out what extreme heat does to our bodies and what we can do to protect ourselves, plus the connection between climate change and public health and why extreme heat disproportionately affects some communities more than others.


  • Joe Sciarrotta| co-owner of Hawkeye Medical Services
  • Michell Sciarrotta| co-owner of Hawkeye Medical Services
  • Mackenzie Udelhoven | nurse
  • Hans House | MD, MACM, FACEP, Professor, Department of Emergency Medicine
  • Lina Tucker Reinders| Executive Director Iowa Public Health Association
  • Tam Marcus | Linn County Sustainability Director

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Organizers cancel fireworks shows, festivals, sports events over drought, heat

Organizers cancel fireworks shows, festivals, sports events over drought, heat

Events around the Netherlands are being cancelled or modified due to the ongoing drought and the recent high temperatures. An official national heat wave is expected to be declared this weekend, which happens after five consecutive days of temperatures above 30 degrees Celsius measured in De Bilt, Utrecht.

The thermometer should read 30 degrees in far Noord-Holland, 31 degrees in Friesland and Groningen, 32 degrees in Utrecht and the eastern region, and 33 degrees in the south. Despite overnight temperatures falling as low as 17 degrees, it should rise back above 30 degrees across the country on Sunday.

A fireworks show that was to be held on Saturday evening in Leersum, Utrecht was canceled because of the fire hazard. “Unfortunately, by order of the Utrecht Security Region, the fireworks cannot continue. It is not safe due to the drought,” the organizers said.

The fireworks show is part of the annual Bloemencorso Leersum, which has been held since 1952. The fireworks were to be staged from a park in Leersum. Due to the fire hazard caused by the fireworks, the municipality just mowed the entire park.

“Unfortunately, mowing the flowery field was not necessary,” said the municipality of Heuvelrug, which also includes Leersum, in a message posted on Twitter on Friday.

The Halve Marathon Vlieland, which was to be held on Sunday, has also been cancelled. The organization made the decision in consultation with the Friesland Security Region and the municipality of Vlieland. It would have been the first time the half marathon was organized since before the coronavirus pandemic, but the organization said it would have been irresponsible to put the runners and volunteers on the course given the heat. “The persistent heat in combination with an easterly wind will cause temperatures to become too high, especially on the shell paths in the dunes area,” the Halve Marathon Vlieland website said.

The Harvest Festival in Oldebroek, Gelderland, was also cancelled on Saturday. The party includes inspections of cows, horses and sheep, but the associations that are involved have withdrawn due to the heat. Practitioners of old crafts also cancelled.

The Bemmelse Paarden Dagen, a horse event in Bemmel, Gelderland, will continue on Monday and Tuesday, at least for the time being. The pony market on Monday has been shortened. At that market, which has taken place since 1958, animals are sold with a traditional handshake between traders and buyers.

The 255th shooting competition organized by the Roman Catholic shooting association of southern Limburg (RKZLSB) was to take place in Mechelen, in Limburg. That event was also postponed due to the heat. It will instead take place next Sunday. “After all, the personal health of all participants and all visitors should have priority and is the reason for this decision,” said the municipality of Gulpen-Wittem.

A horse-riding competition set for Saturday and Sunday was canceled in Ysselsteyn in northern Limburg, and the BraDeLierloop running competition planned for Saturday in De Lier, Zuid-Holland, was also canceled.

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Business can no longer ignore extreme heat events. It’s becoming a danger to the bottom line

Business can no longer ignore extreme heat events. It's becoming a danger to the bottom line
heat thermometer
Credit: Pixabay/CC0 Public Domain

When record-breaking heat waves cause train tracks to bend, airport runways to buckle, and roads to melt, as happened in the United Kingdom last month, it is likely that business performance will suffer.

The problem is not going away, either. Businesses will need to better manage extreme heat risk. But are investors sufficiently informed on the economic toll caused by the increasing frequency of extreme weather?

It is becoming clearer that extreme heat can have devastating and costly effects. People are dying, energy grids are struggling to cope, transport is disrupted, and severe drought is straining agriculture and water reserves.

While the frequency of these events is increasing, more worrisome is that heat intensity is also increasing. Clearly, businesses are not immune to the need to adapt, though their silence might make you think otherwise.

Rising temperatures affect everything

Keeping cool, transporting goods, and scheduling flights as runways melted were just some of the challenges people and businesses have faced during the current European summer.

As it became apparent that our workplaces and infrastructure might not be able to cope with extreme heat, we also saw unions call for workers to stay home. But could workers take the day off? The U.K.’s Health and Safety Executive stated: “There is no maximum temperature for workplaces, but all workers are entitled to an environment where risks to their health and safety are properly controlled.”

Are these rules sufficient in this new normal? Some EU countries already have upper limits, but many do not. The Washington Post reported U.S. federal action might be coming due to concerns over extreme heat for workers. Mitigation of these factors will no doubt be costly.

While highlight the toll on workers and businesses, there is little empirical evidence on the financial hit to business. Here is where our research comes into play: how much of an impact does extreme heat have on business profitability?

Heat hitting the bottom line

We focused on the European Union and the U.K. because the region has a diversity of climate and weather extremes. They are a major economic force, with strong policies on decarbonizing their economies, but also rely on coal, gas, and oil for many sectors.

When it’s hot, these countries are forced to burn more fossil fuel to cool overheated populations, contrary to the need and desire to do the opposite.

With detailed records on heat events at a local level, we connected weather data to a large sample of private and public companies in the EU and the U.K. We focused on two critical aspects of a firm’s around a heat spell (at least three consecutive days of excessive heat): the effect on and the impact on sales. We also examined firms’ stock performance.

We found that businesses do suffer financially, and the effects are wide ranging.

For the average business in our sample, these impacts translate into an annualized loss of sales of about 0.63% and a profit margin decrease of approximately 0.16% for a one degree increase in temperature above a critical level of about 25C.

Aggregated for all firms in our sample, U.K. and EU businesses lose almost US$614 million (NZ$975 million) in annual sales for every additional degree of excessive temperature.

Impact bigger than the data shows

We also found the intensity of a heat wave is more important than its duration.

This financial effect might sound small, but remember, this is an average effect across the EU and the U.K. The localized effect is much larger for some firms, especially those in more southern latitudes.

The stock market response to extreme heat is also muted, perhaps for the same reason. We find on average dropped by about 22 basis points in response to a heat spell.

These average annualized effects include businesses’ efforts to recoup lost sales during heat spells. They also include businesses in certain sectors and regions that appear to benefit from critically high heat spell temperatures, such as power companies and firms in northern European countries.

While we show a systematic and robust result, our evidence probably further underestimates the total effects of heat waves. That’s because businesses disclose very little about those effects due to lax disclosure rules and stock exchange regulations relating to extreme weather.

Financial data part of climate change

Without a doubt, better disclosure will help untangle these effects.

Ideally, financial data needs to be segmented by climate risk and dimensions so investors are better able to price the risk. Regulators need to pay attention here. Investors must be able to price material risk from extreme weather.

A good example is New Zealand, which is about to mandate climate risk disclosures with reporting periods starting in 2023. Such mandates recognize that poor disclosure of climate risk is endemic, and we don’t have the luxury of time.

For those businesses negatively affected, disclosing the number and cost of lost hours and the location of the damage would be helpful. However, it is not yet clear if climate disclosure standards effectively capture these risks, as companies have significant discretion about what to disclose.

It is not necessarily all about cost—some sectors might even benefit. While power companies, for example, might report increased sales from increased energy consumption, they are also constrained by the grid and the increased cost of production.

And our evidence suggests there is little overall benefit to the energy sector. This doesn’t rule out some windfall profits, so we need to understand more about both the positive and negative effects on each industry.

Finally, this July saw temperatures in the United Kingdom soar to 20C above normal. Can businesses cope? Next time you feel the , pause to ask if this is also hitting the bottom line of your workplace or investment portfolio.

How well can weather experts predict unprecedented heat waves?

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Heat event covers Windsor-Essex for the next few days

Heat event covers Windsor-Essex for the next few days

Heat warnings are in effect for most of Ontario Tuesday including Windsor-Essex.

The multi-day event is expected to last until Sunday with daytime high temperatures of 31 to 33 C with humidex values near 40.

Overnight lows near 21 degrees Celsius will provide little relief from the heat.

Tuesday: Clear early this morning then a mix of sun and cloud with 40 per cent chance of showers this afternoon. Risk of a thunderstorm this afternoon. High 32. Humidex 41. UV index 10 or very high.

Tuesday Night: Partly cloudy with 40 per cent chance of showers early this evening. Otherwise clear. Risk of a thunderstorm early this evening. Low 23.

Wednesday: A mix of sun and cloud. 70 per cent chance of showers late in the afternoon with risk of a thunderstorm. High 32. Humidex 41. UV index 10 or very high.

Thursday: A mix of sun and cloud. High 33.

Friday: A mix of sun and cloud. High 33.

Saturday: A mix of sun and cloud. High 31.

Sunday: Cloudy with 60 per cent chance of showers. High 29.

Monday: A mix of sun and cloud with 30 per cent chance of showers. High 30.

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Oak Bay plans to keep residents cool when extreme heat hits – Saanich News

Oak Bay plans to keep residents cool when extreme heat hits – Saanich News

Planning for future extreme heat emergencies includes short-term planning and long-term preparation in Oak Bay. Fire Chief Frank Macdonald outlined the district’s approach to council during its July 11 meeting.

More than 700 people in B.C. died last year due to extreme heat events, according to the provincial health authority, with 21 of them on southern Vancouver Island.

In response to those events, Oak Bay Emergency Services staff has been preparing for extreme summer heat events, working to reduce risks to the health and safety of residents.

Over the one-week heat wave, temperatures rose to a peak of over 40 C in many parts of the province. But different regions were impacted disproportionately, Macdonald told council. Island Health and BC Emergency Health Services (BCEHS) in the Capital Region didn’t report the impact other areas saw. For example, Oak Bay Fire Department was not overwhelmed by medical calls to help BCEHS like their counterparts in Vancouver. There the fire department was, at one point, fully tied up in medical calls amid significant ambulance delays, leaving no resources available for fire response.

While the impacts were less severe, Macdonald noted weather scientists predict hotter summers and extreme heat events should be expected.

Heat events are classified as top-down events, meaning local emergency programs follow the lead of the province. Under the BC Heat Alert and Response System launched in June, a dedicated provincial heat committee will issue either warnings or emergency alerts, depending on different temperature thresholds. If a region is expected to see two or more consecutive days with daytime highs and nighttime lows above what is considered normal, a warning will be issued. If temperatures are expected to continue to increase day over day for three or more days, an extreme heat emergency will be declared and Alert Ready may be used. That emergency alert system should be familiar to residents as Amber Alerts and tsunami warnings on television, radio and cellphones.

Local protocols created by the Oak Bay Emergency Program include education, partnerships, communication, block watch, the Greater Victoria Public Library, Oak Bay Volunteers Services and other local governments. The partnerships focus on education, checking in on vulnerable residents during an event, and providing a place to cool for those who need.

In the event of an extreme heat event the air-conditioned common areas of Oak Bay Recreation Centre, Monterey centre and the Oak Bay branch of the Greater Victoria Public Library, serve as unmanned cooling centres. Neighbouring municipalities confirm their cooling centres will be open to Oak Bay residents living in the area.

OBEP plans to share information through a new preparedness guide, presentations at Monterey centre, displays during the monthly night market and both traditional and social media.

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Excessive heat delays, cancels outdoor events in North Texas due to safety

Excessive heat delays, cancels outdoor events in North Texas due to safety

The near-record temperatures across North Texas are forcing the organizers of some outdoor events to either delay or outright cancel the events because of safety concerns.

Scorching temperatures across the metroplex prompted the National Weather Service to issue an excessive heat warning Thursday continuing at least through Saturday.

With highs over 105 and heat indexes over 110, the extreme heat is a top concern for those in charge of putting on various outdoor events this weekend.

Megan Gordon with the city of Irving says she decided to delay the start of Friday’s outdoor movie night at Heritage Park out of concern for the safety of attendees.

“As the event planner, I thought about it three days ago. But we always try our best to accommodate rather than cancel,” she said. “The event was originally planned for 6:30 p.m. As soon as we saw that heat advisory coming our way, we said let’s push it back when the sun sets a little bit so move it to 8 p.m.”

Typically, crowds can get up to 350. It was much smaller Friday.

Mom Sheniece Perkins admits she had second thoughts when she arrived.

“It’s for the kids, so I got to suck it up. They run around in the heat all of the time,” she said.

But families in Carrollton aren’t so lucky. The city announced Friday that this week’s Christmas in July event downtown would be canceled with no plans to reschedule.

“It’s probably a bummer for whatever kids were looking forward to it,” he said. “I wasn’t planning on coming, but I think it’s kind of sad for the community, but I can understand why. Safety.”

RELATED: Summer heatwave will test Texas power grid’s capacity, experts say

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Boston Area Fourth of July Events Begin in Searing Heat Friday

Boston Area Fourth of July Events Begin in Searing Heat Friday

There are so many things to do this weekend to celebrate Independence Day in the Boston area, but the weekend kicks off with temperatures soaring into the 90s Friday.

At Christopher Columbus Park, there will be a concert and fireworks display Friday evening as a part of Boston Harborfest. The Fourth of July Festival celebrating Boston’s harbor and history kicks off Friday with events at Downtown Crossing, including the turn-around sail of the USS Constitution.

Meanwhile, Friday night and Saturday is Boston JerkFest, with incredible Caribbean food at the Harvard Athletic Complex. And of course, the crown jewel of Boston’s Fourth of July celebrations is the Boston Pops Fireworks Spectacular on Monday at the Esplanade.

Thursday was expected to be one of the busiest travel days on the road for the Fourth of July weekend. Triple A Northeast predicts drivers in the Boston area could experience up to 3x the usual traffic on some roadways both Thursday and Friday.

But the weather is going to be hot with temperatures in the 90’s Friday, and the weekend in the 80’s and humid. The NBC10 Boston weather team issued a First Alert Friday for the searing temperatures.

For those attending any of these outdoor events, experts say to want to watch for signs of heat stroke. If you’re not sweating, you have dry, hot, red skin, pinpoint pupils, dizziness or a headache, vomiting or fainting, you should seek medical care.

Click here for a full list of where to watch fireworks on the Fourth of July.

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A year after deadly B.C. heat dome, experts say events may alter ecology forever |

A year after deadly B.C. heat dome, experts say events may alter ecology forever  |

A year after the heat dome event that killed billions of plants and animals in British Columbia, scientists say ecosystems are recovering, but could be transformed forever if such events become more frequent.

Cold-water marine species could be replaced by warm-water organisms, triggering cascading effects through the environment, said Christopher Harley, a zoology professor at the University of British Columbia.

“If we had another heat wave this summer, it would be a problem,” he said. “An ecosystem might be able to handle a big heat wave once every few decades — there’s enough time for recovery — but if it starts hitting every four or five years, the species that we’re used to just can no longer persist.”

Click to play video: 'Lessons learned from last year’s heat dome'

Lessons learned from last year’s heat dome

Lessons learned from last year’s heat dome

Dozens of temperature records were set during the heat dome. The high-pressure system settled over Western Canada, acting as a lid to trap a layer of hot air that got progressively hotter for about a week. Three successive Canadian records were set in the town of Lytton, where the temperature topped out at 49.6 C on June 30, the day before a fire destroyed most of the village.

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The heat caused more than 600 human deaths, the BC Coroners Service reported. It also led to mass mortalities of marine life, reduced crop yields and contributed to wildfires, which later caused devastating landslides last fall.

Read more:

Trial by fire: What a village in B.C. is teaching the world about climate adaptation

Diane Srivastava, director of the Canadian Institute for Ecology and Evolution, organized a group of scientists now working to understand the heat dome’s impact on species and ecosystems. She said some were “immediate and obvious” but several years of data is required to “get a full picture of the longer-term effects.”

Harley, a member of the group, said the heat wave caught researchers off guard and they are now “scrambling to understand” what it will mean for the oceanic ecosystem.

“I’m a bit embarrassed to say we don’t know (the ecological consequences) because it hadn’t occurred to us to ask what would happen if it got hot enough to kill billions of marine animals,” he said. “That heat dome was so far outside of what anyone expected.”

Click to play video: 'Rebuilding Lytton for a much hotter, more dangerous future'

Rebuilding Lytton for a much hotter, more dangerous future

Rebuilding Lytton for a much hotter, more dangerous future

Scientists initially estimated more than a billion marine animals died along the Pacific coast. Harley, who has studied shorelines on the West Coast since 1995, said this was an underestimation.

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“Easily many billions of animals died,” he said. “It was a perfect storm of a few different things. It was obviously much, much hotter than usual and those high temperatures coincided with very low tides.”

Species with mobility had a higher survival rate than those that anchor to rocks in shallow waters, he explained.

“Mussels aren’t back yet and some of the common seaweeds are not, but baby barnacles are having the time of their lives. They’re all over the place and the first step in recovery is (when) they come in,” he said. “The foundation has now been laid.”

Read more:

‘Helplessness’ in Lytton, B.C. says mayor, as residents question findings on devastating wildfire

Adam Ford, an assistant professor and Canada Research Chair in Wildlife Restoration Ecology at the University of British Columbia, said the large mammals he studies were far less impacted by the heat than oceanic life.

“We’ve got a couple of years of data under our belt and there wasn’t a bump in mortality or anything during that time.”

He said this is because large mammals are homeothermic, meaning they can regulate their body temperatures, and were able to move to cooler areas to avoid direct heat.

Karen Hodges, a professor of conservation ecology at the University of British Columbia, said most mobile animals and those that burrow into the soil likely fared better during the wildfires that followed the heat dome than those unable to flee quickly. She said it’s difficult to estimate total deaths because it would require “many assumptions about animal densities” before the fires.

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How fast an area’s ecosystem recovers depends on environmental aspects like soil moisture, but hinges on fire management practices and climate change response, Hodges said.

“The answer to what comes back becomes a question of what humans do to these landscapes in the next decade, two decades if you want to be generous, because we could either set up the conditions for low levels of frequent, small fires or we could set up conditions that enable repeats of these massive fires,” she said. “It’s a pivotal time.”

Read more:

Wildfire that destroyed Lytton, B.C. not linked to train activity: report

Ford echoed the call for better wildfire practices to mitigate the impacts of intense heat.

“We already know that climate change and poor management practices, like fire suppression, for the last 50 to 70 years has really degraded the health of our forests. So you put those two things together, we’ve got a recipe for catastrophic failures that trickled through all sorts of areas of society, including biodiversity,” he said.

“We need to figure out how we put fire back on the landscape in an amount and intensity that restores habitat for wildlife and people.”

Wildland fires are a natural part of the forest ecosystem and important for maintaining the health and diversity of the forest, Natural Resources Canada says on its website.

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“Prescribed fires offer a valuable resource management tool for enhancing ecological conditions and eliminating excessive fuel buildup,” the website says.

For decades, scientists in B.C. have been calling for the use of low-severity fires to “maintain” forest health by creating fire breaks. Hodges said fire suppression efforts made to protect communities eliminated many of those natural breaks, allowing fires to spread more easily.

She said the provincial report following B.C.’s historic 2003 wildfires, which forced the evacuation of over 45,000 people from the province’s interior, was a turning point.

“That report is full of advice about letting some fires burn, about FireSmart communities and about prescribed fire and all sorts of things that the province basically didn’t do, but that advice has been in government hands since at least that report,” she said.

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Hodges said large fires can also compound climate change-related weather events, like the catastrophic floods that took place in B.C. last fall. She said fires that kill thousands of trees affect soil composition and can make it hydrophobic, meaning it repels water. Then, when heavy rains occur, water isn’t absorbed into the soil, causing landslides.

“Things like this are way more common after these big, hot lethal fires than after the small run-of-the-mill fires we’ve had in our history,” she said.

Read more:

Okanagan, Shuswap boaters asked to slow down, lessen wakes as water levels remain high

The Ministry of Forests said in a statement that it uses prescribed burning as “one of several fuel management tools and techniques to help reduce the intensity of naturally occurring wildfires while returning an integral process to the ecosystem.”

Rachel White, the lead author of a report on the widespread ecological impacts of the 2021 heat wave, currently under peer review, said the lack of synthesized data has been a major barrier for scientists.

“We’re going to have more frequent and hotter heat waves, and this is going to have an impact on all of the ecology. In order to monitor that, we need data,” she said.

“We need that data in order to actually understand what the impacts are and, once we know how systems are responding now, that gives us more information to say how they’ll respond in the future if the climate continues to warm through human actions.”

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Harley, the zoology professor, and his team is working to better understand what makes an ecosystem more or less sensitive to heat waves.

“There may be small changes that we can make so ecosystems are more resistant to something like a big heat wave or a big drought,” he said.

Click to play video: 'With better home security, Metro Vancouver thieves turn to new targets outside homes'

With better home security, Metro Vancouver thieves turn to new targets outside homes

With better home security, Metro Vancouver thieves turn to new targets outside homes

Srivastava said the Institute for Ecology and Evolution has been advocating for a provincial biodiversity monitoring network.

“Events like this sort of point out the need to have such a monitoring network for biodiversity already in place, which would allow us to have a long-term monitoring of many populations,” she said. “Instead, what we’re having to do is pull together data from many different sources to try to see the immediate effects and then the long-term effects.”

She said the development of a network is “a recent and ongoing subject of conversation” with provincial and federal governments.

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B.C.’s Environment Ministry confirmed it is working to synthesize ecology research and data on climate change as part of its new Climate Preparedness and Adaptation Strategy.

“Understanding how climatic disruption will affect ecosystems is essential to responding to climate change,” it said in a statement. “The province is supporting the establishment of an Ecosystem Forecast Centre within the Ministry of Forests to build expertise and resources to translate technical climate change projections into forecasts of ecosystem change in B.C.”

© 2022 The Canadian Press

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Quesnel to team up with Williams Lake and 100 Mile on future extreme heat events : My Cariboo Now

Quesnel to team up with Williams Lake and 100 Mile on future extreme heat events : My Cariboo Now

Quesnel City Council has directed staff to submit a joint application to the Union of BC Municipalities Community Emergency Preparedness Fund.

City Manager Byron Johnson said it made sense to work with the City of Williams Lake and the District of 100 Mile House.

“The thought process is if we’re going to get a consultant into help us it makes sense to amalgamate the three communities and do one larger project, although it will be looking at each community specifically, so its not a generic type of a solution.”

Johnson said the money would be used for a variety of things.

“The grant will fund a project which will help us to map extreme heat and understand our community risks more accurately between now and the 2080’s, including mapping areas, population, structures or assets at risk.  It will also complete a risk assessment of the social, economic and environmental impacts of extreme heat events, and create a plan for response and risk reduction for future heat events.”

Councillor Ron Paull questioned why the Cariboo Regional District wasn’t included.

Mayor Bob Simpson responded.

“I believe the kinds of things you are planning for is sheltering in place, how are you dealing with seniors, it’s more of an urban oriented phenomenon.  And the answer for the CRD for example, would be bringing people into the urban centres or a local solution of some kind, so I believe this is more of an urban oriented grant.”

The City of Williams Lake would administer the project if the grant application is successful.

It would be 100 percent funded.

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Summer arrives ahead of B.C.’s first heat event of the season

Summer arrives ahead of B.C.’s first heat event of the season

After a cool and unsettled spring, B.C. will get its first taste of the newly ushered in summer season with a significant warm-up on the weekend. Saturday you’ll notice the warmer temperatures, but Sunday is the first day temperatures spill into the lower 30s across inland sections. However, the forthcoming warmth may have complications for the ongoing flood threat in B.C. For more details, read on.

RELATED: Delay in snowpack melt leads to growing flood fears in B.C.


An offshore flow will allow temperatures to reach the mid-to-upper 20s along the South Coast, possibly reaching the 30-degree mark for downtown Vancouver, and into at least the low-to- mid-30s for some inland locations, including the Fraser and the Okanogan valleys.


Be forewarned, though, as the incoming heat could have some negative ramifications for the ongoing flood threat in the province.

The sudden uptick in temperatures could accelerate the snowmelt, which has been delayed, potentially leading to flooding in parts of the province, similar to what Kelowna saw this month. Numerous flood watches and high streamflow advisories are in place.

Temperatures will remain warm through early next week, but keep it mind, that this heat is nothing like the heat dome of 2021.


In fact, morning temperatures last June were significantly warmer and more humid than our forecast highs next week across the province.

As of now, next Sunday and Monday are a tossup in terms of the warmest day of this heat event, before more of an onshore flow develops by Tuesday, June 28.

Stay tuned to The Weather Network for the latest forecast updates for B.C.