November 3, 1998 MEMORANDUM TO: Record FROM: Dennis A. Keyser -- W/NMC22 Subject: Changes to 3DVAR/OI/SSI-Data Preprocessor (September 21, 1998 Version -- RUC DATACARD UPDATE # 2.2) Implemented 14Z 03 November 1998: GOES layer PW retrieval time window changed from +/- 0.5 hours about cycle time to +/- 1.0 hours.