13:31 UT E Limb Very faint and diffuse front that quickly fades. 23:54 UT EN East Bright loop front with structured interior. Faint extensions to N and S. GOES recorded a C2.3 X-ray flare on NOAA AR 10878 (~N16E90) between 23:23 - 23:52 UT with peak emission at 23:36 UT.
08:30 UT EN East Ragged loop front. It fades throughout C3. 12:54 UT W Limb Diffuse, ragged, and expanding loop front. Very faint in C3. It fades throughout C3. 16:54 UT EN East Bright loop front. Faint extensions to N and S. Gusty outflow afterward. GOES recorded another C2.3 S-ray flare on NOAA AR 10878 (~N16E81) between 16:15 - 16:45 UT with peak emission at 16:31 UT. 22:06 UT EN East Very faint and diffuse front that quickly fades.
01:31 - 03:54 UT LASCO Data Gap. 03:54 UT EN East Bright and ragged loop front already under development after data gap (LE almost at the end of the C2 FOV). Very faint extensions seem to cover the C2 occulting disk by 06:06 UT. Difficult to say if those extension are really associated to the bright loop front. GOES recorded a C5.3 X-ray flare on NOAA AR 10878 (~N16E74) between 01:33 - 02:07 UT with peak emission at 01:57 UT. EIT 195 images show evidence of a CME on and behind the limb on ENE during the data gap. 10:34 UT EN East Extremely faint and diffuse brightening starts to be discernible on ENE, apparently covering the C2 occulting disk by 11:54 UT (elliptical shape, i.e., elongated toward E and W). Barely discernible in C3. GOES recorded a C1.8 X-ray flare on NOAA AR 10876 (S10E08) between 09:13 - 09:37 UT with peak emission at 09:32 UT. EIT 195 images show a brightening between 09:24 and 09:48 UT concentrated in the W part of the AR. Some dimming around FC N and E of AR. 17:54 UT S West Extremely faint and slightly expanding loop front. It fades thoughout C3. 22:06 UT W Limb Faint and diffuse loop front followed by a narrow front a little bit to S at 00:06 UT (on 05/01).
04:06 UT WS West Narrow ragged front. Last C2 image available by the time of writing: 12:06 UT