After weeks of heavy rain and flooding in the Pacific Northwest, California is again under flood watches this week. Northern California received 50-75mm (2-3 inches) of rain over the weekend. More heavy rain and mountain snow will continue through Friday due to several atmospheric rivers. Rainfall totals may exceed 50mm (2 inches) broadly, with some areas seeing 200-300mm (8-12 inches), especially in northwest California and the northern Sierra Nevada slopes. Los Angeles could get 100-150mm (4-6 inches) between Christmas Eve and Christmas Day. This may be one of the wettest Christmases ever there. Flooding is likely in rivers and cities, with risks of mudslides and rockslides in mountain areas. Yosemite National Park faces winter storm warnings with 1.8-2.4 meters (6-8 feet) of snow possible by Boxing Day. Travel will be tough due to heavy snow and strong winds. Zimbabwe is expecting heavy rain, lightning, hail, and strong winds from December 21 to 24. The Meteorological Services Department has issued a level 2 weather warning. Some places could see over 50mm of rain in 24 hours. These conditions come from warm, moist air mixing with low-pressure systems in western and northern parts of Zimbabwe. Australia will have wild temperature changes this Christmas. Sydney, now above 40°C, will cool down to about 22°C, which is 5°C below normal. Perth’s temperature will rise, reaching 40°C around Christmas Day, 10°C above average for this time. These extreme weather patterns add challenge to holiday plans across these regions.