First panel: EIT 195   Å wavelet-enhanced image of the Sun on January 2, 1998, when AR 8124 crossed the southwest limb of the Sun. Second panel: potential field extrapolation on January 2, 1998, in the western hemisphere, showing closed/open fieldlines at the northern/southern edge of the AR, respectively. Third panel: LASCO C2 difference image at 15:09 UT showing the propagating disturbance that originated at 14:30 UT at PA = 259. The black circle indicates the limb of the solar disk. The sun-centered cone shows the CME width and axis at 14:30 UT, as given in the LASCO CME catalog. The four slits of UVCS observations we analyzed are also shown, together with the radial at 225 degrees.