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. . . Some minor changes have been made to better accommodate the needs of the National Weather Service (NWS) National Operational Hydrologic Remote Sensing Center (NOHRSC) in Chanhassen, MN. For example, gridded field data an~ being provided on a daily basis (12 Z to 12 Z) rather than for the periods cited in Goal 4. The~;e files are automatically transferred from a Reclamation server to a NOHRSC server using ftp and the Internet. The past 1 and 3 hours products are being made available as are 2 and 6 houlrs products for both SWE and SD. These are updated each hour and posted at a Reclamation web site as will be discussed. However, NOHRSC is not yet ready to deal with NEXRAD prodUlcts of less duration than 24 h. Goal 2. was partially accomplished by this project and partially by a closely related GCIP project, both with additional support from the Bureau of RElclamation (Reclamation) Research and Technology Transfer Program. The first annual report for the latter GCIP project (Super 1998) discusses how Reclamation's Snow Accumulation Algorithm (SAA) was modified to use NEXRAD Information Dissemination System (NIDS) reflectivity data as input. The SAA was developed for the tri-agency NEXRAD Operational Support Facility (Super and Holroyd 1998) using Level II reflectivity data with 0.5 dBZ resolution. With rare excoptions (e.g., a few research universities), Level II data are only available in real-time at the NEXRAD radars and downstream Radar Product Generators (RPG) at NWS Forecast Offices and similar facilities for the other two NEXRAD agencies, the Federal Aviation Administration and thE~ U.S. Air Force. Highly specialized and expensive equipment is needed to extract real-time Level II data for non-standard purposes even at NWS Forecast Offices. Super (1998) demonstrated that use of the lower resolution (4 or 5 dBZ depending upon volume coverage pattern) NIDS reflectivity data, sometimes called "Level III" data, did not significantly degrade SAA performance in Minnesota. The same result would be expected for the entire Northern Great Plains region, and perhaps for NEXRAD-observed snowfalls in general. Reclamation made arrangements to obtain near real-time NIDS data from several radars through the WSI Corporation for the 1998-99 fall/winter/spring period. These data have been routinely received via the Internet since the fall of 1998, usually within a few minutes after radar observations are made. The University Corporation for Atmospheric Research (UCAR) previously developed Unidata Local Data Manager (LDM) software for transfer of many types of meteorological data. This complex package was freely obtained from UCAR and installed on a Reclamation workstation, albeit with some effort. The WSI Corporation provides Internet transfer only via Unidata LDM software. While the Unidata LDM package is much more complex than would be needed for just NIDS data transfer, it has proven to be very reliable since some initial installation problems were solved. The cooperation of UCAR in helping with these problems is appreciated. During the current winter, Reclamation is obtaining NIDS reflectivity measurements for NEXRAD radars located at or near Bismarck and Grand Forks, North Dakota; Aberdeen, South Dakota; and Duluth and Minneapolis, Minnesota. Data are obtained as individual files for each of the 4 lowest antenna tilts of each volume scan. These are then combined into an abbreviated volume scan, usually with 4 tilts. However, some tilts are occasionally not received. The SAA is configured to operate with any volume scan that contains at least thE~ lowest and next-to-Iowest tilts, as these are sufficient for use over the relatively flat terrain of Minnesota and the eastern Dakotas. The SAA attempts to use the lowest tilt beam to as close of every radar as possible while avoiding ground returns. This approach minimizes the problem of scanning well above ground where 2