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ARROWS. A utomated R eal-time RO ad W eather S ystem. What is ARROWS?. One stop weather info shopping State of the art weather info Tailored to WSDOT needs. ARROWS Development. UW has all the weather info UW has state-of-the-art tools Develop a maintenance tool.
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ARROWS Automated Real-time ROad Weather System
What is ARROWS? • One stop weather info shopping • State of the art weather info • Tailored to WSDOT needs
ARROWS Development • UW has all the weather info • UW has state-of-the-art tools • Develop a maintenance tool
ARROWS Forecast System • “Ensemble-based” NWP • High resolution output • Rapid updates
ARROWS Components • Current Conditions • Observations • Radar and Satellite Access • Forecasts • Computer generated forecasts • Human generated forecasts
ARROWS Successes • Morning pavement temperature forecasts within 2°F of actual • No apparent bias warm or cold • Two “neat” snow hits