Thunderstorms producing frequent lightning and areas of moderate to heavy rain will continue through the morning hours with thunderstorms expanding in coverage and becoming more numerous this afternoon and evening as a low pressure trough continues to lift northward through the area, acting on the deep monsoonal moisture in place. Storms are firing on the edge of the dry air moving into southeast Utah and southwest Colorado and expect this to continue as drier air pushes up from the southwest against the deeper moisture. Expect heavy rain, gusty winds and frequent lightning with storms today with possible flash flooding. Localized runoff and mud debris flows in steeper terrain may occur under the stronger cells. Storms will linger through the evening north of I-70 with much activity dissipating after midnight as much drier air encompasses the region. Expecting a downturn in storm activity by Wednesday through the end of the week with enough moisture hanging around f! or afternoon storms mainly over the higher terrain. Temperatures will remain below normal with values edging towards normal values by the end of the week.   (Please visit for more information.)