Description of Storm Precipitation Analysis System
The Storm Precipitation Analysis System (SPAS) is a state-of-the-science hydrometeorological tool used to characterize the magnitude, temporal and spatial details of precipitation events. Over the past ten years, SPAS have been proven t0 be the most reliable and accurate tool available to analyze precipitation events. The results have been used and accepted in all PMP studies since 2002, in forensic cases in courts of law, and has been peer reviewed in HyrdoReview (Parzybok and Tomlinson 2006). SPAS has been used to analyze over 250 extreme precipitation events (see map below) for PMP derivation, runoff model calibration/validation, storm reconstructions for legal cases. SPAS has unique capabilities, increased accuracy over all other radar-based precipitation products, and unmatched reliability. SPAS is the industry’s best gauge-adjusted and radar-calibrated rainfall system. Incorporating sophisticated quality control algorithms, SPAS utilizes real-time rain gauge observations, the industry’s highest resolution NEXRAD radar data from Weather Decision Technologies (WDT) and a climatological “basemap” approach to produce gridded rainfall at a spatial resolution of 1/3rd-square mile and a temporal resolution of 5-minutes (with radar). In addition, unlike the National Weather Service products, it is the only precipitation analysis system which can analyze storm in terrain blocked areas and when radar outages occur.
SPAS Information
SPAS Program Description
SPAS Real-Time Precipitation Fact Sheet SPAS Real-Time Comparison Chart Against NWS SPAS Comparisons vs NWS Products
SPAS vs NWS MPE runoff comparison
SPAS vs NWS MPE total storm isohyetal SPAS vs NWS MPE stage 4-Pompton Lakes example SPAS Spatial and Temporal comparisons SPAS Real-Time
SPAS is available in real-time with similar output and forecasting capabilities. Contact us to learn how this can help you with your reservoir management and energy production decisions as well as basin monitoring for flood control.
SPAS Real-Time description SPAS Real-Time examples SPAS Storm List-Updated Monthly
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   SPAS Storm Analysis Locations-click here for interactive map
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