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Thursday March 19, 2026, 3:00 PM: The water vapor satellite shows an unforgiving 594 DM high-pressure axis that has firmly become anchored over Los Angeles, California to Phoenix, Arizona. This historic March heatwave is breaking records not seen over 100 years in Los Angeles and is the earliest 100-degree day for Phoenix, Arizona of the season. This amplified blocking pattern will keep Hawaii in flood territory while the southwestern U.S bakes at least until March 31, 2026, due to how strong the ridging has been this week. Possibly another ridge development next week. Simultaneously, a new low-pressure axis approximately 145 miles due west of Oahu has developed and will bring new rounds of rainfall and possibly flooding concerns. The extremes are fueled by the ongoing warming of the Pacific Ocean, which could be something that could have interesting ramifications in the next few months for both Hawaii, Southern California, the Pacific Northwest, Alaska, and the Midwest. #CAwx #heatwave #flood #hawaii