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Predictability of High Impact Weather during the Cool Season over the Eastern U.S: CSTAR Operational Aspects Matthew Sardi and Jeffrey Tongue NOAA/NWS, New York, NY 4 November 2010
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Outline Who/Why WFO Goals Activities to Date: – Training Initiatives – Visualization Software
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Who in NOAA WFO’s – New York – Mt Holly – State College – Pittsburgh NCEP – EMC – HPC – OPC NOAA Earth System Research Laboratory
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Motivation Prediction of mesoscale phenomenon within extratropical storms remains a major challenge.
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Goal for the WFO Improvement in operational forecaster understanding of uncertainty/predictability. Improve communication of uncertainties to users/customers.
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Specifics Upton, NY (KOKX): – Improved understanding of cyclone evolution and precipitation bands – Ensemble Forecast Systems (EFS) application to Aviation Low-level winds Precipitation type Snowfall rate – Mentors to the SBU students 1 SCEP 1 STEP 4 Volunteers
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Specifics (cont) WFO Philadelphia, PA (KPHI): – Storm surge – Coastal flooding State College, PA (KCTP): – Visualization Software – Training – Data management WFO Pittsburgh, PA (KPIT): – Training – Visualization – Graphical Forecast Editor (GFE) Applications
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Specifics (cont) Hydrometeorological Prediction Center (HPC): – Precipitation banding. – Cyclone track verification for the winter weather desk, medium range forecast products, as well as the snowfall and QPF products. – HPC will host visiting forecasters, scientists, and project students. Ocean Prediction Center (OPC): – EFS application to cyclone track and intensity. – East Coast Marine impacts - high winds and waves.
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Specifics (cont) Environmental Modeling Center (EMC): – EFS sensitivities related to the Weather Storms Reconnaissance Program – Impacts of wave packets – Training of forecasters: Impact of targeted observations SREF system – Cyclone verification Environmental System Research Laboratory (ESRL): – EFS sensitivities related to the Weather Reconnaissance Program – Training on the impact of targeted observations on predictability.
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Current CSTAR Training Initiatives Wave Packets Targeted Observations ALPS
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Wave Packets
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Target Observations
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Advanced Linux Prototype System (ALPS) Running on a “non-baseline” AWIPS Workstation. Looks and Feels like D2D Designed for probabilistic forecasting Visualizing Ensemble Data – Weighting Ensemble Members – Generating Probabilistic Grids – Etc
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ALPS
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New Projections
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Statistical Functionality
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A Brief Example The following are all 168 HR (7 Day) Forecasts from last Thursday Valid at 8 AM this Morning – Thursday, Nov 4th
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GEFS Members + ECMWF
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ECMWF
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GEFS Mean
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GEFS Mean + ECMWF = MEAN
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Example Statistics - 850 Temperatures
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850 Temperatures - cont
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How do I get ALPS ? Visit the SBU CSTAR Page: http://dendrite.somas.stonybrook.edu/CSTAR /cstar.html
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ALPS GFE - Future Deployment of Probabilistic Products Aviation Specific Examples – Wind Speed – Wind Direction – Gusts (probability of being reported) No yet Loaded at OKX
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Example Probabilistic Products
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BUFKIT 10 SREF (21 Members) WDTB WRF Ensemble – Resolution: 24 KM – Frequency: 00Z and 12Z – Members: 8 ensemble members (2 3 ) x 2 Initializations NMM/ARW NAM/GFS KF/BMJ
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Boundary Layer Winds - Aviation
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Questions? CSTAR E-Mail List – Send Jeff Waldstreicher an e-mail CSTAR WEB PAGE: – http://dendrite.somas.stonybrook.edu/CSTAR/cstar.html
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