The advances in mesoscale NWP models, such as the Navy's COAMPS, can provide forecasters with useful local scale weather conditions that are not shown or well depicted in global or coarse mesh mesoscale model products. Figures 1, 2, and 3 are shown to demonstrate the additional information that can be gained through use of the finer grid size nested COAMPS forecasts. This sequence of 24 hr cumulative precipitation forecasts for 54,18, and 6km model grid size illustrates the increasing information available on orographically enhanced rainfall amounts and localization of the precipitation maximum. This rainfall event occurred during the 24 hour period of 011100Z to 011200Z. The precipitation maximum occurred on the upslope side of the San Garbiel Mtns north of Los Angeles under a strong southerly flow in advance of a vigorous winter cold front. A leeside rain shadow over the high desert area north of the Mtns is also shown in the 18km forecast. Note that the amount of forecast precipitation increases from 2-4 inches in the 54km forecast to 4-6 inches in the 18 and 6km. Also note that the area of maximum precipitation becomes much more localized in the 6km data as compared to the 54 and 18km depictions.