A weak wave (brown line) moving over the northern and central mountains has caused some light showers and the occasional rumble of thunder but a lull is expected once this wave moves out of the area in the next few hours. Convection is expected again today but the Rockies and higher plateaus are favored for the best coverage. Some of the storms will drift into the valleys by this afternoon and evening. Friday will be relatively calm but by Saturday activity will pick up again.   (Please visit http://weather.gov/gjt for more information.)