Posted: Sep 30, 2012 2:33 AM
Updated: Sep 30, 2012 2:33 AM
Weather Underground Forecast for Sunday, September 30, 2012.
Heavy rain continues developing across the South as a low pressure system moves eastward from Texas on Sunday. The system pulls additional moisture in from the Gulf of Mexico, spreading heavy rainfall and strong thunderstorms across eastern Texas and Oklahoma and the Lower Mississippi River Valley. Flooding will remain of concern around this system as rainfall totals will range from 2 to 4 inches, with up to 5 inches possible in isolated areas. Strong winds will persist along this system with gusts from 40 to 50 mph.
Meanwhile in the East, a low pressure system in the Northeast will continue pulling northeastward and into far eastern Canada. Flow around this system will push moisture inland from the Atlantic Ocean, spreading rain showers across Maine, with lighter and more widespread showers reaching into the Northeast. A cold front associated with this system, will continue moving southward down the East Coast. By Sunday, the tail end of the front will slide south of the Carolinas, triggering showers and thunderstorms across the Southeast. Severe storms are not anticipated along this frontal boundary.
Out West, a ridge of high pressure continues building over the West Coast. This will create another warm and sunny day, with hot temperatures anticipated in the inland valleys. Excessive heat warnings have been issued for parts of central California. Fire danger will remain high in these areas as hot and dry conditions continue.
Temperatures in the Lower 48 states Saturday have ranged from a morning low of 28 degrees at Crane Lake, Minn. to a high of 100 degrees at Thermal, Calif.