Tropical storm Norma formed off the west coast of Mexico just after the page of the calendar turned to September in 1970. By September 3rd it had reached minimal tropical storm force then was pulled inland after moving briefly up through the gulf of California. Its impacts were minimal in Mexico and many though the worst was over. It lost its circulation, but not it’s moisture. Heavy tropical moisture deep through the atmosphere came streaming northward into Arizona. The result was what is known as The Great Labor Day Storm of 1970.Severe flooding hit Arizona on September 4, 1970 that extended into the 5th.

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