Advances in High Resolution Regional Advances in High Resolution Regional

Weather ModelingWeather ModelingMike LeutholdMike Leuthold

University of ArizonaUniversity of Arizona

Department of Atmospheric SciencesDepartment of Atmospheric Sciences

Quick Overview of the Regional Weather Quick Overview of the Regional Weather

Research and Forecasting ModelResearch and Forecasting Model

● Run at Arizona since 2003Run at Arizona since 2003

● Used for Monsoon Used for Monsoon

forecasts since 2005forecasts since 2005

● Runs at 1.8KM horizontal Runs at 1.8KM horizontal

resolutionresolution

● Continuously updating to Continuously updating to

improve forecastsimprove forecasts

FlagstaffFlagstaff

Tucson

Phoenix

Summer Case StudiesSummer Case Studies

High and Low Temperature PredictionsHigh and Low Temperature Predictions

Summer Case StudiesSummer Case Studies

July 6 2007 MicroburstsJuly 6 2007 Microbursts

Summer Case StudiesSummer Case Studies

27 July-2 Aug Heavy Rain Event27 July-2 Aug Heavy Rain Event

Summer Case StudiesSummer Case Studies

27 July-2 Aug Heavy Rain Event27 July-2 Aug Heavy Rain Event