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Tag: heatwave

  • Last seven years warmest on document, sea-level rise highest in 2021: WMO report

    The final seven years have been the warmest on document and world sea-level rise accelerated since 2013, reaching a brand new excessive in 2021, a provisional report launched by the World Meteorological Organisation has acknowledged. The report has attributed the document sea-level rise to warming up and acidification of ocean waters.
    The provisional report titled ‘State of Global Climate 2021’, which was launched in Geneva on Sunday because the COP26 convention started in Glasgow, combines inputs from a number of United Nations businesses, nationwide meteorological and hydrological companies, and scientific specialists.
    During COP26, the WMO will launch the Water and Climate Coalition to coordinate water and local weather motion, and the Systematic Observations Financing Facility to enhance climate observations and forecasts that are important to local weather change adaptation.

    “The provisional WMO ‘State of the Global Climate 2021’ report draws from the latest scientific evidence to show how our planet is changing before our eyes. From the ocean depths to mountain tops, from melting glaciers to relentless extreme weather events, ecosystems and communities around the globe are being devastated. COP26 must be a turning point for people and the planet. Scientists are clear on the facts. Now leaders need to be just as clear in their actions,” stated United Nations Secretary-General António Guterres.
    WMO Secretary-General Professor Petteri Taalas stated, “For the first time on record, it rained—rather than snowed—at the peak of the Greenland ice sheet. Canadian glaciers suffered rapid melting. A heatwave in Canada and adjacent parts of the USA pushed temperatures to nearly 50°C in a village in British Columbia. California’s Death Valley recorded a temperature of 54.4 °C during one of the multiple heatwaves in the southwestern USA, whilst many parts of the Mediterranean experienced record temperatures. The exceptional heat was often accompanied by devastating fires.”

    According to the WMO report, greenhouse gasoline concentrations reached new highs in 2020. Levels of carbon dioxide had been 413.2 components per million, methane at 1889 components per billion (ppb) and nitrous oxide at 333.2 ppb. These ranges respectively had been 149 per cent, 262 per cent and 123 per cent greater than pre-industrial ranges. The enhance has continued in 2021.
    The world imply temperature for 2021 (based mostly on information from January to September) was about 1.09°C above the common in the course of the 1850-1900 interval. Moreover, 2016 was the warmest yr on document in keeping with many of the datasets surveyed.
    The report acknowledged that 90% of the amassed warmth within the Earth system is saved within the ocean, which is measured via ocean warmth content material. “The upper 2,000 meters depth of the ocean continued to warm in 2019 reaching a new record high,” says the report, including that many of the oceans skilled a minimum of one sturdy marine heatwave in 2021.
    “The ocean absorbs around 23% of the annual emissions of anthropogenic CO2 to the atmosphere and so is becoming more acidic. Open ocean surface pH has declined globally over the last 40 years and is now the lowest it has been for at least 26,000 years. Current rates of pH change are unprecedented since at least that time. As the pH of the ocean decreases, its capacity to absorb CO2 from the atmosphere also declines,” the report acknowledged.
    WMO has additionally stated that the worldwide imply sea-level rise was 2.1 mm per yr between 1993 and 2002, nevertheless it jumped to 4.4 mm per yr between 2013 and 2021, principally as a result of accelerated lack of ice mass from glaciers and ice sheets. The Arctic-wide sea-ice extent was at a document low within the first half of July, 2021.
    The report has additionally acknowledged that mass loss from North American glaciers accelerated over the past twenty years, almost doubling for the interval 2015-2019 as in comparison with 2000-2004. Referring to the distinctive heatwaves and wildfires in North America in addition to floods in western Europe, the report acknowledged, “…it was found that the heavy rainfall had been made more likely by climate change.”

    “Extreme weather during the 2020/2021 La Niña altered rainfall seasons contributing to disruptions to livelihoods and agricultural campaigns across the world. Extreme weather events during the 2021 rainfall season have compounded existing shocks. Consecutive droughts across large parts of Africa, Asia, and Latin America have coincided with severe storms, cyclones and hurricanes, significantly affecting livelihoods and the ability to recover from recurrent weather shocks,” the report acknowledged.
    It added, “Extreme weather events and conditions, often exacerbated by climate change, have had major and diverse impacts on population displacement and on the vulnerability of people already displaced throughout the year. From Afghanistan to Central America, droughts, flooding and other extreme weather events are hitting those least equipped to recover and adapt.”

  • Summer warmth lacking over India as Cyclone Tauktae induced ‘large excess’ rain this May

    THIS MAY has been something however a dry, scorching and arid month over most elements of India.
    In lower than 10 days to show over to June, the nation is but to expertise a warmth wave and, as a substitute, has acquired steady rain up to now.
    Though thunderstorm actions have continued since April over South, West and central India areas, the climate turned extra pronounced in the course of the week between May 13 and 19, coinciding with the crossing of the ‘extremely severe storm’ Tauktae near Diu in Gujarat on May 17.
    “Kerala, Lakshadweep, Karnataka, Goa and Maharashtra came under the influence of the storm and experienced heavy to extremely heavy rain between May 12 and 18,” stated Dr Mrutyunjay Mohapatra, director common, IMD.
    The storm hurtled previous in a parallel method alongside the West coast earlier than it dumped heavy spells over Gujarat. Furthermore, the system superior as a despair and later as a low strain over Rajasthan, Delhi, Uttar Pradesh and Bihar, persevering with to trigger widespread heavy showers.
    Meteorological information of the India Meteorological Department (IMD) present that each most temperature and rainfall data for May had been surpassed at a number of locations, together with Delhi, Mumbai and Pune, and over stations in Gujarat.
    On May 19, Delhi recorded its coolest day in May at 23.8 levels Celsius, in 70 years. Likewise, most temperatures recorded at Pune and Mumbai on May 17 had been 28.1 levels and 26.9 levels Celsius, respectively.
    During May 13 to 19, arid deserts of Kutch, Saurashtra and Rajasthan together with Gujarat recorded most rainfall surplus. Against a traditional of 0.1 mm, Gujarat recorded 46.5 mm making it a ten,000 per cent above regular for per week.
    Recording 991 per cent above regular rain over the last seven days, Rajasthan’s weekly rain stood at 26.2 mm. Likewise, Madhya Pradesh, Maharashtra, Karnataka, Goa and Kerala, too, had been amongst high-surplus rainfall class states final week.
    These areas don’t, usually, obtain any rain and stay largely dry all through the summer time season. Rainfall arrives with monsoon reaching elements of Gujarat and Rajasthan between late June and mid-July. As the rainfall figures are negligible, heavy rainfall will mirror as a excessive surplus, stated an IMD official.
    Finer look into the rainfall recorded at 36 meteorological sub-divisions between May 13 and 19 recommend that 20 of those recorded ‘large excess’ rainfall. Six and 4 sub-divisions reported ‘normal’ and ‘excess’ rain, respectively.
    All this surplus rainfall helped the nation as a complete clock 127 per cent surplus rainfall bringing the general pre-monsoon season (March 1 to May 19 ) to regular.

  • Normal warmth situations over most components of India throughout May: IMD

    Most areas throughout the nation will expertise regular warmth situations throughout May, said the ‘Monthly weather review and outlook for May’ report, issued by the India Meteorological Department (IMD) on Tuesday.
    However, meteorological subdivisions of Konkan and Goa, together with Odisha, are prone to expertise above regular day temperatures this month. Similarly, Jharkhand, Chhattisgarh and Bihar may even face marginally above regular warmth situations throughout the ongoing month, the report famous. Due to thunderstorm actions and presence of moisture, even night-time temperature forecast over Konkan and Goa, Gujarat and Kutch-Saurashtra is prone to stay considerably larger than regular this month.
    Thunderstorms accompanied by heavy rain are forecast over Assam and Meghalaya on May 4, 5 and seven.
    This yr, the Met division had forecast that temperatures throughout summer time over most areas would stay near regular throughout March and May.
    Due to the successive passing of two western disturbance techniques over excessive northern components of the nation, a rise in rainfall exercise is predicted over Uttarakhand beginning Wednesday, with heavy rain seemingly on Thursday.
    Overall, rainfall over northwest India, east and northeast India will stay above regular until May 12, the Met division has said in its newest forecast.

  • Third warmest March in 121 years recorded over India, says IMD

    India recorded its third warmest March in 121 years, the India Meteorological Department (IMD) has said in its month-to-month report for March 2021 launched on Monday.
    The month-to-month most temperature recorded over the nation final month was 32.65 levels Celsius versus a standard of 31.24 levels (reference with 1980-2010), making March 2021 additionally the warmest since 2011 over the nation.
    The minimal and imply temperatures recorded over India final month have been additionally above regular, the IMD talked about in its report.
    “Both the day and night temperatures during the second half of March showcased an increasing trend, especially over parts of central India and Rajasthan. The overall increase in temperatures was observed on a day-to-day basis and was not due to any particular weather,” mentioned R Okay Jenamani, senior scientist on the National Weather Forecasting Centre, New Delhi.
    But what’s worrying is the beneath regular rainfall reported in March, with the nation clocking a deficiency of 45.2 per cent.
    Generally, convective actions start in March and sporadic thunderstorms are reported from most elements of the nation.
    Barring Tamil Nadu, Puducherry, Karaikal, Assam, Meghalaya, Jammu and Kashmir, rainfall exercise over the remaining areas remained beneath regular final month.
    In all, seven western disturbances crossed the intense northern areas of India.
    These eastward propagating wind techniques, originating from the Mediterranean Sea, trigger rain or snowfall alongside its path. Normally, there are 4 such techniques recorded in March.
    “Due to active western disturbances, the western Himalayan regions, mainly over Jammu and Kashmir, received widespread rain and snowfall, in March. Some of these systems also brought hail and thunderstorms over parts of central India,” added Jenamani.
    With these consecutive western disturbances, warmth circumstances over north India, notably Delhi, Punjab and neighbouring areas, remained in test.
    “No heat wave condition emerged till the fag end of the month, till it was reported in west Rajasthan from March 30 to 31,” mentioned an IMD official.