sentences:  1891 brought the heaviest flooding on record across Arizona (a record broken in 1993), carving lasting changes to the Verde river drainage, bordering Prescott.The Verde, which has in some years been completely dry, gushed with 4,284 cubic meters per second of water on Feb 24, 1891, or about half the size of the Columbia river.Tropical Storm Octave, in 1983, brought 14.5" of rain to parts of Prescott in less than forty-eight hours.