Utah ARPS Data Analysis System (ADAS)

Personnel: S. Lazarus and C. Ciliberti

Develop local analysis at high temporal (1 h) and spatial resolution (2 km)

Provide near real-time high resolution data over the complex terrain of northwest Utah

Based on the Oklahoma ADAS (ARPS Data Analysis System) developed by the Center for Analysis and Prediction of Storms (CAPS)

Incorporation of large-scale and local data:

• Rapid Update Cycle Version 2 (RUC2) analysis used to initialize ADAS
• Utah Mesonet available at 15 minute intervals
• NWS rawinsonde provides upper air data at 0 and 12 GMT
• NWS WSR-88D velocity and reflectivity data obtained at 5-10 minute intervals (NIDS products)
• Visible and IR Satellite imagery used to specifiy cloud water

Summer 1998: Use ADAS to initialize the Advanced Regional Prediction System (ARPS) to provide high resolution forecasts of mesoscale events

On-line Information: ADAS

References:

• Lazarus, S., C. Ciliberti, and J. Horel, 1998: Application of a local analysis system in highly variable terrain. 16th Weather and Forecasting Conference. Phoenix, AZ.