From analysis of statistics of the properties of dense interstellar clouds, we show that a disk star the age of the Sun has probably passed through about 135 clouds of n (H) > or approx. =10/sup 2/ cm/sup -3/ and about 16 clouds with n (H) > or approx. =10/sup 3/ cm/sup -3/. We have evaluated the influence of cloud density and encounter velocity upon the possibilities for reversal of the stellar wind flows into an accretion flow, including the effects of ionization of the accreting material. For most speeds considered, the accretion rate is influenced by the ionizing radiation; however, in no case does it terminate the inflow.