Moderate to thick fog may occur at places over the river basins and the southern part and light to moderate fog elsewhere across the country from late night till Sunday morning. Weather may remain dry with temporary partly cloudy skies over the country, according to Bangladesh Meteorological Department’s (BMD) bulletin. Night and day temperatures may rise slightly. Read more: Moderate to thick fog likely across the country over 24 hours The lowest temperature in the country was recorded at 12.2 degrees Celsius in Srimangal in 24 hours till 6 am today. The highest temperature was recorded at 31 degrees Celsius in Sitakunda during this time. Trough of low lies over India’s Bihar state and adjoining areas. Seasonal low lies over the South Bay.

Earth’s fever persisted last year, not quite spiking to a record high but still in the top five or six warmest on record, government agencies reported Thursday. But expect record-shattering hot years soon, likely in the next couple years because of “relentless” climate change from the burning of coal, oil and gas, U.S. government scientists said. Despite a La Nina, a cooling of the equatorial Pacific that slightly reduces global average temperatures, the U.S. National Oceanic and Atmospheric Administration calculates 2022’s global average temperature was 58.55 degrees (14.76 degrees Celsius), ranking sixth hottest on record. NOAA doesn’t include the polar regions because of data concerns, but soon will. If the Arctic -- which is warming three to four times faster than the rest of the world -- and Antarctic are factored in, NOAA said it would be fifth warmest. NASA, which has long factored the Arctic in its global calculations, said 2022 is essentially tied for fifth warmest with 2015. Four other scientific agencies or science groups around the world put the year as either fifth or sixth hottest. NOAA and NASA records go back to 1880. NASA Administrator Bill Nelson said global temperature is “pretty alarming ... What we’re seeing is our warming climate, it’s warning all of us. Forest fires are intensifying. Hurricanes are getting stronger. Droughts are wreaking havoc. Sea levels are rising. Extreme weather patterns threaten our well-being across this planet." Read more: UK saw hottest-ever year in 2022 as Europe's climate warms Berkeley Earth, a nonprofit group of independent scientists, said it was the fifth warmest on record and noted that for 28 countries it was the hottest year on record, including China, the United Kingdom, Spain, France, Germany and New Zealand. Another group, whose satellite-based calculations tend to run cooler than other science teams, said it was the seventh hottest year. Last year was slightly toastier than 2021, but overall the science teams say the big issue is that the last eight years, from 2015 on, have been a step above the higher temperatures the globe had been going through. All eight years are more than 1.8 degrees (1 degree Celsius) warmer than pre-industrial times, NOAA and NASA said. Last year was 2 degrees (1.1 degrees Celsius) warmer than the mid-19th century, NASA said. “The last eight years have clearly been warmer than the years before,” said NOAA analysis branch chief Russ Vose. In a human body an extra 2 degrees Fahrenheit is considered a fever, but University of Oklahoma meteorology professor Renee McPherson, who wasn’t part of any of the study teams, said the global warmth is actually worse than the equivalent of a planetary fever because fevers can be treated to go down quickly. “You can’t take a pill for it so the fixes aren’t easy,” McPherson said. “It’s more what you consider a chronic illness like cancer.” Like a fever, “every tenth of a degree matters and things break down and that’s what we’re seeing,” Climate Central Chief Meteorologist Bernadette Woods Placky. The likelihood of the world shooting past the 1.5 degrees Celsius (2.7 degrees Fahrenheit) warming threshold that the world adopted in 2015 is increasing with every year, said the World Meteorological Organization. The United Nations weather agency said the last 10 years average 1.14 degrees Celsius warmer than pre-industrial times. Vose said there's a 50-50 chance of hitting 1.5 degrees Celsius temporarily in the 2020s. Vose and NASA Goddard Institute of Space Studies Director Gavin Schmidt both said there are hints of an acceleration of warming but the data isn’t quite solid enough to be sure. But the overall trend of warming is rock solid, they said. “Since the mid-1970s you’ve seen this relentless increase in temperature and that’s totally robust to all the different methodologies,” Schmidt said. The La Nina, a natural process that alters weather worldwide, is in its third straight year. Schmidt calculated that last year the La Nina cooled the overall temperature by about a tenth of a degree (.06 degrees Celsius) and that last year was the hottest La Nina year on record. Read more: Hot nights: US in July sets new record for overnight warmth “The La Nina years of today aren’t the La Nina years of yesterday,” said North Carolina state climatologist Kathie Dello. “Historically, we could rely on La Nina turning down the global thermostat. Now, heat-trapping gases are keeping the temperature cranked up, and handing us another top-10 warmest year on record." With La Nina likely dissipating and a possible El Nino on the way — which adds to warming — Schmidt said this year will likely be warmer than 2022. And next year, he said, watch out if there’s an El Nino. “That would suggest that 2024 would be the record warmest year by quite a large amount,” Schmidt said in an interview with The Associated Press. Scientists say about 90% of the heat trapped by greenhouse gases goes into the upper 6,561 feet of the ocean (2000 meters), and figures released Wednesday show 2022 was another record year for ocean heat. “There’s a real good connection between the patterns of ocean warming, the stratification, and then the weather that we experience in our daily lives on land," including stronger hurricanes and rising seas, said study co-author John Abraham of the University of St. Thomas. In the United States, global warming first grabbed headlines when Schmidt’s predecessor, climate scientist James Hansen, testified about worsening warming in 1988. That year would go on to be the record warmest at the time. Now, 1988 is the 28th hottest year on record. The last year that the Earth was cooler than the 20th century average was 1976, according to NOAA. But scientists say average temperatures aren’t what really affects people. What hits and hurts people are how the warming makes extreme weather events, such as heat waves, floods, droughts and storms worse or more frequent or both, they said. “These trends should concern everyone,” said Cornell University climate scientist Natalie Mahowald, who wasn’t part of the study teams. WMO Secretary-General Petteri Taalas said in 2022 those extremes “undermined health, food, energy and water security and infrastructure. Large areas of Pakistan were flooded, with major economic losses and human casualties. Record breaking heat waves have been observed in China, Europe, North and South America. The long-lasting drought in the Horn of Africa threatens a humanitarian catastrophe.”

What's considered officially “dangerous heat” in coming decades will likely hit much of the world at least three times more often as climate change worsens, according to a new study. In much of Earth's wealthy mid-latitudes, spiking temperatures and humidity that feel like 103 degrees (39.4 degrees Celsius) or higher -- now an occasional summer shock — statistically should happen 20 to 50 times a year by mid-century, said a study Monday in the journal Communications Earth & Environment. By 2100, that brutal heat index may linger for most of the summer for places like the U.S. Southeast, the study's author said. Also read: At least 14 potential heat deaths in Oregon after hot spell And it’s far worse for the sticky tropics. The study said a heat index considered “extremely dangerous” where the feels-like heat index exceeds 124 degrees (51 degrees Celsius) — now something that rarely happens — will likely strike a tropical belt that includes India one to four weeks a year by century's end. “So that’s kind of the scary thing about this,” said study author Lucas Zeppetello, a Harvard climate scientist. “That’s something where potentially billions of people are going to be exposed to extremely dangerous levels of heat very regularly. So something that's gone from virtually never happening before will go to something that is happening every year.” Zeppetello and colleagues used more than 1,000 computer simulations to look at the probabilities of two different levels of high heat -- heat indexes of 103 degrees (39.4 Celsius) and above 124 degrees (51 Celsius), which are dangerous and extremely dangerous thresholds according to the U.S. National Weather Service. They calculated for the years 2050 and 2100 and compared that to how often that heat happened each year across the world from 1979 to 1998. The study found a three- to ten-fold increase in 103-degree heat in the mid-latitudes even in the unlikely best-case scenario of global warming limited to only 3.6 degrees (2 degrees Celsius) since pre-industrial times -- the less stringent of two international goals. There's only a 5% chance for warming to be that low and that infrequent, the study found. What's more likely, according to the study, is that the 103-degree heat will steam the tropics “during most days of each typical year” by 2100. Also read: Europe broils in heat wave that fuels fires in France, Spain Chicago hit that 103 degree heat index level only four times from 1979 to 1998. But the study’s most likely scenario shows Chicago hitting that hot-and-sticky threshold 11 times a year by the end of the century. Heat waves are one of the new four horsemen of apocalyptic climate change, along with sea level rise, water scarcity and changes in the overall ecosystem, said Zeppetello, who did much of the research at University of Washington state during the warming-charged 2021 heat wave that shattered records and killed thousands. “Sadly, the horrific predictions shown in this study are credible,” climate scientist Jennifer Francis of the Woodwell Climate Research Center, who was not part of the study team, said in an email. “The past two summers have provided a window into our steamy future, with lethal heat waves in Europe, China, northwestern North America, India, the south-central U.S., the U.K., central Siberia, and even New England. Already hot places will become uninhabitable as heat indices exceed dangerous thresholds, affecting humans and ecosystems alike. Areas where extreme heat is now rare will also suffer increasingly, as infrastructure and living things are ill-adapted to the crushing heat.” The study focuses on the heat index and that’s smart because it’s not just heat but the combination with humidity that hurts health, said Harvard School of Public Health professor Dr. Renee Salas, who is an emergency room physician. “As the heat index rises, it becomes harder and harder to cool our bodies,” Salas, who wasn’t part of the research team, said in an email. “Heat stroke is a potentially deadly form of heat illness that occurs when body temperatures rise to dangerous levels.” The study is based on mathematical probabilities instead of other climate research that looks at what happens at various carbon pollution levels. Because of that, University of Pennsylvania climate scientist Michael Mann is more skeptical of this research. It also doesn’t take into account landmark U.S. climate legislation that President Joe Biden signed earlier this month or new efforts by Australia, he said. “The obstacles at this point are political and no statistical methods, regardless of how powerful or sophisticated can predict whether we will garner the political will to overcome them,” Mann said in an email. “But there is reason for cautious optimism.”

Weathermen have predicted light to moderate showers for Bangladesh over the next 24 hours. Read: Commuters suffer in gridlock after sudden shower’s relief In its weather bulletin Tuesday, Bangladesh Meteorological Department said, "Light to moderate rain or thunder showers accompanied by temporary gusty wind is likely to occur at most places over Rangpur division; at a few places over Dhaka, Mymensingh & Sylhet divisions and at one or two places over Rajshahi, Khulna, Barishal & Chattogram divisions with moderately heavy to heavy falls at isolated places over northern part of the country,”  The axis of monsoon trough runs through Rajsthan, Hariyana, Uttar Pradesh, Bihar, West Bengal to Assam across northern part of Bangladesh. Read: Rain, thundershowers likely in parts of country One of its associated troughs extends up to the North Bay. Monsoon is fairly active over Bangladesh and weak to moderate over the North Bay, the bulletin said. Day and night temperatures may remain nearly unchanged over the country at 27.8 degrees Celsius.