AHPS
  Advanced Hydrologic Prediction Services
AI
  API adjusted by wet/dry curves
API
  Antecedent Precipitation Index
AWIPS
  Advanced Weather Interactive Processing System
CFS
  cubic feet per second
CS
  Calibration System
DEM
  Digital Elevation Model
DWOPER
  Dynamic Wave Operations
ESP
  Ensemble Stream Prediction
ESPADP
  ESP Analysis and Display
ET
  Mean Areal Evapotranspiration
GUI
  Graphical User Interface
HSD
  Hydrologic Services Division
ICP
  Interactive Calibration Program
IFP
  Interactive Forecast Program
MAP
  Mean Areal Precipitation
MAT
  Mean Areal Temperature
MCP
  Manual Calibration Program
NOAA
  National Oceanic and Atmospheric Administration
NWS
  National Weather Service
NWSRFS
  National Weather Service River Forecast System
OFS
  NWSRFS Operational Forecast System
OHD
  Office of Hydrologic Development
OPT
  Automatic Parameter Optimizer
QPF
  Quantitative Precipitation Forecast
RFC
  River Forecast Center
SMA
  Soil Moisture Accounting
WFO
  Weather Forecast Office