This system
has a history of producing scattered showers and thunderstorms, but severe weather has not developed along this front. However, as the system moves further east, it is expected to pull in additional moisture and energy from the Atlantic Ocean and Gulf of Mexico. Thus, if severe weather develops, it will most likely be along the Gulf and Mid-Atlantic states.
Another hot and humid day is expected, with the South reaching into the 90s, while the North will remain in the 60s and 70s.
Behind this system, in the Upper Midwest and northern Plains, a strong flow from the north is expected to pull cool air in from Canada. Highs were forecast to remain in the 50s and 60s, with overnight lows dipping to near-freezing in the extreme north.
In the central Plains, a mild trough of low pressure was forecast to dip southeastward throughout the day. This system was expected to bring a few patchy clouds with additional showers. The West Coast was forecast to continue experiencing hot, dry and sunny conditions, as a large ridge of high pressure was building over the region. A mild trough was expected to move through the Pacific Northwest, but was not likely to bring any precipitation.
Temperatures in the Lower 48 states Friday ranged from a low of 23 degrees at Pinedale, Wyo., to a high of 107 degrees at Death Valley, Calif.
