It is known that polar mesospheric clouds (PMCs) are modulated by traveling planetary waves and migrating tides. However, the role of nonmigrating tides is unknown. In this paper, we study the local time and longitudinal variability in PMC parameters from AIM/CIPS observations and 0-D modeled ice driven by NOGAPS-ALPHA temperature and water vapor. We used the differences between the CIPS ascending and descending nodes at 75°N, and mapped the 0-D model results to the CIPS times and locations. Agreement between CIPS and the 0-D model results on individual days in the 2009 northern PMC season (June, July and August) is reasonable for most days, but can be notably poor for others. We speculate that the differences are caused by multi-day variability such as 2-day or 5-day waves. Monthly averages indicate fairly robust longitudinal variability, confirming the existence of non-migrating tides. Different variables, such as ice water content (IWC) and vertically maximum ice mass density (m_ice) for the 0-D model results, and IWC and albedo for CIPS, are used. The results are highly consistent between different PMC variables, suggesting that the analysis is not sensitive to the variables chosen. A tidal analysis of the NOGAPS-ALPHA temperature and 0-D model IWC shows that both diurnal and semidiurnal nonmigrating tides could have contributed to the longitudinal variability in the observed CIPS ascending and descending IWC differences.