Extreme weather warnings were issued across the U.S. as Southern California faced temperatures 15 to 25 degrees above normal, anticipated to rise further next week. Flooding in Hawaii, multiple 100-degree days in the Southwest, and plunging temperatures from a polar vortex in the Midwest and East are expected this weekend. Meteorologist Mark Chennard noted that these shifts could lead to unpredictable temperature changes nationwide.
While Southern California may cool slightly on Saturday, intense heat is forecasted to return due to heat domes over the Southwest, with temperatures in Phoenix projected to reach as high as 107 degrees. This unprecedented early warmth, according to the National Weather Service, is set to challenge long-standing records.
In contrast, the polar vortex is expected to cause temperatures near zero in cities like Minneapolis and single digits in Chicago, with significant snow accumulation projected in the Midwest. The upcoming heatwave in Southern California could mark one of the strongest recorded in March, with advisories in place urging residents to stay hydrated and protect vulnerable populations from heat-related illnesses.
Despite potential cooling on Saturday, stronger heat is predicted to return Sunday, with a prolonged heatwave following next week. The Bureau of Meteorology warns of heat stress, particularly among those unaccustomed to such conditions, with increased risks of grass fires due to the dry heat. Long-term forecasts indicate a lack of rain, raising concerns for the fire season ahead.
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