Upper level disturbances will bring increased chances of showers and thunderstorms to northern and western parts of the area Tuesday night and Wednesday, and to mainly the northwest half of the area Wednesday night into Thursday morning. A strong cold front will move south across the area Thursday afternoon and Thursday night. Showers and thunderstorms will be likely with the approach and arrival of the front, and rainfall could be heavy. After passage of this front, showers and a few storms may linger into Friday morning. Behind this cold front, temperatures will be much cooler Friday and Saturday, and the area is expected to have gusty north winds on Friday.