; and and inserting a semicolon; (2) in paragraph (3), by striking the period at the end and inserting ; and ; and (3) by adding at the end the following: (4) evaluating and incorporating, as appropriate, innovative observations, including acoustic or infrasonic measurements. . 10. Weather and water research and development planning Section 105(2) of the Weather Research and Forecasting Innovation Act of 2017 ( 15 U.S.C. 8515(2) ) is amended by inserting and flood-event after operational weather . 11. Forecast communication coordinators Section 1762(f)(1) of the Food Security Act of 1985 ( 15 U.S.C. 8521(f)(1) ) is amended, in the second sentence, by striking may and inserting shall . 12. Estimates of precipitation frequency in the United States (a) Definitions In this section: (1) Freely Associated States The term Freely Associated States means the Republic of Palau, the Republic of the Marshall Islands, and the Federated States of Micronesia, which have each entered into a Compact of Free Association with the United States. (2) United States The term United States means the 50 States of the United States, the District of Columbia, the Commonwealth of Puerto Rico, the United States Virgin Islands, Guam, American Samoa, the Commonwealth of the Northern Mariana Islands, and the Freely Associated States. (b) In general The Administrator of the National Oceanic and Atmospheric Administration shall establish a program, to be known as the NOAA Precipitation Frequency Atlas of the United States , to compile, estimate, analyze, and communicate the frequency of precipitation in the United States. (c) Functions The NOAA Precipitation Frequency Atlas of the United States— (1) shall better inform the public and provide information on— (A) temporal and spatial distribution of heavy precipitation; (B) analyses of seasonality in precipitation; and (C) trends in annual maximum series data