Some typical and unusual events of solar-terrestrial physics in January-June 1999

We have singled out the fifteen most significant events in January-June 199 9, identified their solar sources, and classified them. Active filaments we re involved in all events, and low-latitude coronal holes were involved in most of them. We consider the structure and dynamics of hole-filament-strea mer interplanetary magnetoplasma flows at 1 AU and their relationship to th e configuration and dynamics of the solar sources. The flows are sequences of quasi-stationary, nonstationary, and posteruptive stages of the solar-wi nd stream. The nonstationary stage has been first shown to be attributable to the combined effect of sudden filament activation (ejection) and a chang e in coronal-hole configuration. The fast stream from a coronal hole was fo und to be "loaded" with slow dense filament plasma; we interpret the almost complete "disappearance" of the solar wind both in terms of rapid plasma e jection outside the heliosphere and in terms of the disappearance of the sl ow- and fast-solar-wind sources.