Cyclone Harold, its strength ranked in the highest category of five, passed over Fiji's south at about midday, levelling homes and snapping communications links in the archipelago, which has adopted curbs on movement to rein in the virus.
Sydney's dams have seen water levels spike dramatically though many inland areas, that are facing severe water shortages, missed out on the flows.
A powerful snowstorm hit the US Midwest, blocking roads and causing hundreds of flight cancellations that threatened travel plans for many people who intended to fly or drive to Thanksgiving feasts this week.
In recent years, smog has become a problem for some cities in Pakistan and neighboring India due to industrial and transport pollution and the practice by farmers to burn stubble crop.
Heavy rains have killed at least 100 people in India's Uttar Pradesh and Bihar states triggering floods and forcing people to flee. With more rain predicted, weather experts say September could end as the wettest in more than a hundred years.
Australia's Bureau of Meteorology (BOM) says the drought is being driven, in part, by warmer sea-surface temperatures impacting rainfall patterns. Air temperatures have also warmed over the past century, increasing the ferocity of droughts and fires.
Heavy rains in parts of four Indian states – Kerala, Karnataka, Maharashtra and Gujarat – have forced more than 1.2 million people to leave their homes, mostly for government-run relief camps.
Countries experience hot temperatures across continental Europe as meteorologists blamed a blast of torrid air from the Sahara for the unusually early summer heatwave.
The deaths occurred in three districts of the impoverished northern state, where temperatures have hovered around 45 degrees Celsius in recent days, senior health official Vijay Kumar told AFP.
After several quiet years, tornadoes have erupted in the US over the last two weeks as a volatile mix of warm, moist air from the southeast and persistent cold from the Rockies clashed and stalled over the Midwest.
The three deaths and several injuries were recorded in and around Golden City, Missouri, where a tornado touched down on Wednesday. The casualties bring the week's weather-related death toll to at least seven.
A team of Turkish researchers established the observation station in Antarctica, which will provide meteorological data such as wind speed, pressure and global solar radiation for two years.
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