Weather Underground Forecast for Monday, July 15, 2013.
Cool and rainy weather will continue for the Southern Plains on Monday as an upper low treks across the region. This system, combined with moist, favorable environmental conditions, will kick up moderate to heavy rainfall and slow moving thunderstorms, especially in parts of north-central Texas. Excessive rainfall in already well saturated areas of north-central Texas will likely produce another 1 to 3 inches of additional rain with isolated locally higher amounts of up to 5 inches. A Flash Flood Watch has been issued for the region in anticipation of Monday¼'s precipitation.
Meanwhile, to the north, showers and thunderstorms will remain focused along a nearly stationary frontal boundary extending across Nebraska, the Northern Plains and parts of Minnesota.
In the East, deep moisture and waves of energy over the Southeast will support scattered showers and chances of thunderstorms through the the day. Limited showers activity is expected to the north, while hot and humid conditions persist.
Finally, out West, monsoonal moisture streaming across the Four Corners will trigger areas of showers and thunderstorms.
Temperatures in the Lower 48 states Sunday have ranged from a morning low of 34 degrees at Stanley, Idaho to a high of 107 degrees at Needles, Calif.