Hello, I am using the Rational Method Analysis of the Hydraulic Toolbox. Under the IDF curves I see that NOAA Atlas 2 Data is an option, but not NOAA Atlas 14. The paragraph below can be found on page 31 of the Desktop Refernce Guide. Any idea when NOAA Atlas 14 data will be made available in the Hydraulic Toolbox? Thank you, Josh The Rational Method Calculator allows the input of precipitation information from a variety of sources. Hydro-35 for the Eastern United States, NOAA Atlas 2 for the Western United States, and user defined precipitation values from other sources such as NOAA Atlas 14 (various regions of the United States).