Many All-Time March Record High Temps To Be Shattered Thursday Into Sunday!
March 11, 2026. Dusty Sunrise - Hobbs, NM. A massive dome of mid and high-level high pressure is forecast to set up over southern California and Arizona today through the weekend. Heights, or a measure of atmospheric pressure aloft, are forecast to be near record levels with this abnormally and unusually strong high-pressure dome. Sinking air beneath this dome of high pressure will be compressed and warmed. Lee side troughing along and east of New Mexico's central mountain chain will also cause compressional heating. Dry downslopping southwesterly winds will add to the mix. A historic heatwave is forecast to break out over the southern half of Arizona, southern Nevada, and the southern and southwestern areas of California, from Thursday into Sunday. Daily record high temperatures and some all-time March record high temperatures are forecast to be broken. Forecast highs range from near 100 to near 110. New Mexico will not escape this insane heatwave, and many daily and even some Ma...