• Chennai records heaviest 24-hour January rain since 1915, India

    An average of 123 mm (5 inches) of rain fell in Chennai, India, on Tuesday, January 5, 2021, becoming the city's highest rainfall in a single day for the month of January since 1915. The heavy downpour resulted in inundation in many parts of the area. While the…

  • Sudden Stratospheric Warming (SSW) event started over the weekend

    A Sudden Stratospheric Warming event started over the weekend in association with a significant weakening or reversal of westerly winds circulating around the North Pole — between 10 and 50 km (6 – 31 miles) above the ground — the stratospheric polar vortex. …

  • Very rare January tornadoes touch down in California

    The National Weather Service (NWS) confirmed that two tornadoes touched down in Tehama County, California on Monday, January 4, 2021. In the NWS Sacramento forecast area there were 39 tornadoes reported from 2010 – 2020. This works out to about 4 tornadoes a year,…