A survey of four years' records of Florissant Wood‐Anderson seismographs reveals that the very small, regular, group microseisms of period very near to 0.3 sec occur in storms of quite variable duration, from less than one hour to over 40 hours. By a consideration of gross hourly occurrences, times of storm beginning and ending and of maximum trace displacements, as well as an investigation of many individual cases, a distinct correlation in time is shown to exist between these short‐period microseisms at Florissant and increased short‐period microbarographic activity recorded by the Macelwane instrument at the same station. From only the six‐hourly surface synoptic maps, it appears that the great majority of the 155 arbitrarily chosen microseismic storms may be associated either with the approach or passage at the station of a cold frontal type discontinuity or both, or with local, non‐frontal convective activity. These relationships, in agreement with findings for the correlated microbarographic oscillations, suggest that local atmospheric turbulence may be a prime factor in the generation of these short period microseisms. Although this microseismic activity usually persists longer in the post‐ than in the pre‐cold frontal period, a study of these microseisms may be useful in predicting cold front passages over land. A few case histories are presented to reveal certain details of the synoptic study, particularity the sequence of microseismic activity during frontal passages. There is some indication that these correlated short‐period microseisms and atmospheric micro‐oscillations are truly recorded vibrations of the ground and of the barometric pressure, respectively. That is to say it appears that the recorded oscillations are not the result of atmospheric micro‐oscillations operating directly on the seismometers or microseisms affecting the microbarographs. It seems also indicated that these ground and atmospheric vibrations are not related as cause and effect at some distance from the recording points. However, they may well proceed from a common source. This study suggests that, with more precise information, combined analyses of these microseisms and micro‐oscillations may be useful in elucidating the local turbulent nature of the atmosphere.