Observations at 10 minutes intervals began at 17:20 on 4 April. Very light snow began at 19:08. Snow lasted from 19:40 on 4 April to 1:30 on 5 April. Ice pellets started at 1:10 and lasted until 2:20 with a maximum intensity at around 1:30. Rain mixed with snow and ice pellets started at around 1:40. From 2:30 only rain was observed. Rain lasted until 10:50. Observations ended at 11:20 on 5 April. Microphotography was attempted every 10 minutes during solid precipitations, but was not always possible if the precipitation melted too quickly or bounced off the collection pad. When microphotography was not possible, pictures using a microscope attachment on a smartphone were attempted. During this event, five weather balloons were successfully launched (at 23:22 UTC on 4 April and 2:36, 5:14, 8:09, 11:20 UTC on 5 April). One balloon launch was not successful due to a faulty radiosonde.
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