An Interactive Web Tool for Extreme Precipitation Analysis & Monitoring David Nelson Asst. State Conservation Engineer USDA – Natural Resources Conservation Service
Northeast Regional Climate Center (NRCC), Cornell University Arthur DeGaetano Dan Zarrow
Updates rainfall analysis Rainfall Frequency Atlas of the US, TP-40, National Weather Bureau, 1961 (≈ 20 years of record, 1938 – 1958 ) Also: NWS HYDRO-35, 1977: 5- to 60- Minute Precipitation Frequency for the Eastern and Central United States. Technical Paper 49, Two- to Ten- Day Precipitation for Return Periods of 2 to 100 years. New study includes rainfall events through 2008 NOAA’s National Weather Service Atlas 14 updates not yet available for New England and New York
County TP-40 (inches) NRCC (inches) Percent Change Barnstable % Berkshire2.9 0% Bristol % Dukes % Essex % Franklin % Hampden % Hampshire % Middlesex3.1 1% Plymouth3.4 -1% Worcester %
County TP-40 Rainfall (inches) NRCC Rainfall (inches) Percent Change Barnstable % Berkshire % Bristol % Dukes % Essex % Franklin % Hampden % Hampshire % Middlesex % Plymouth % Worcester %
Updates rainfall analysis Provides interactive web tool for easy access
Updates rainfall analysis Provides interactive web tool for easy access Offers real-time monitoring of rain events
Updates rainfall analysis Provides interactive web tool for easy access Offers real-time monitoring of rain events Provides a method to update the analysis in the future