What We Do

AWA has completed more than 30 Probable Maximum Precipitation studies since 1996.  In addition, we have completed more than 250 SPAS storm analyses which are used in PMP development, model calibration/validation, forensic cases, and numerous other applications.  Each topic below provides more detailed information on the services AWA provides.  Please contact us if you would like more information on how we can help you.

AWA Services and Areas of Expertise

• Probable Maximum PrecipitationMore than 30 site-specific, statewide, and regional PMP analyses completed over the last 15 years. Our studies have been accepted by state and Federal regulators.


• HydrometerologyOur SPAS storm analyses are used in hydrologic model calibration and validation. The precipitation data is provided at 1/3rd-square mile spatial resolution, temporal resolution as low as 5-minute but generally at hourly intervals, and can be provided in almost any file or GIS format.


• Storm Analysis-gridded precipitationThe Storm Precipitation Analysis System (SPAS) has been used to analyze over 250 storm events since 2002. The results have been used in PMP development, model calibration/validation, forensic testimony, and numerous other applications.


• Forensic MeteorologyAWA has provided weather and climate analysis, expert testimony, and other meteorological information for numerous cases adjudicated in the courts of law.


• Weather ModificationAWA has been an innovator in cloud seeding using LASER technologies and continues to research and advance this technology.


• Climate MappingAWA has applied sophisticated statistical (R-package) and geographical (GRASS-GIS) methods for the derivation and interpolation of climate variables. Spatially mapped climate variables include: Precipitation, Air Temperature, Wind Speed, Dew Point Temperature, Snow Depth and Density.


• Precipitation and Climate Frequency AnalysisAWA has completed numerous precipitation frequency analysis ranging from a single station to the entire state of Wyoming. In addition, frequency analysis have been completed on other meteorological variables, such as wind and dew points.


• GIS/Spatial AnalysisAWA has been a leader by incorporating the most advanced uses of GIS technologies to analyze rainfall, development and implement PMP values, and provide information to clients for PMF development, snow melt modeling, and hydrologic calibration and validation.