Weather Underground Forecast for Thursday, September 06, 2012.
Unsettled weather activity will continue across the Midwest and East on Thursday as a long cold front extending form the Great Lakes into the Southern Plains pushes eastward through the day. This disturbance will kick up chances of showers and thunderstorms in areas along and ahead of the boundary into the Eastern Seaboard. As this disturbance progresses to the east, severe thunderstorm development will become possible in the Central and Southern Plains with damaging wind and hail during the afternoon and evening.
To the south, an area of low pressure in the north-central Gulf of Mexico is expected to drop southwestward at 5 to 10 mph during the next couple of days. This system has a medium chance, 40 percent, of becoming a tropical cyclone as it progresses and environmental conditions become marginally conducive for development. Elsewhere in the South, hot and humid conditions will continue in the Deep South as daytime highs reach into the triple digits and heat index values reach up to 110 degrees.
In the West, scattered afternoon and evening thunderstorms will persist in the Intermountain West due to lingering monsoonal moisture, while fire weather conditions persist from parts of the Northwest into the western Nebraska panhandle. Temperatures in the Lower 48 states Wednesday have ranged from a morning low of 26 degrees at Stanley, Idaho to a high of 104 degrees at Breckenridge, Texas