Discuss Items
•Examine 10 Year Statistics (Storm Data, WES Cases, WFO Buf website)
•Lake Effect Impacts (Transportation, Economy)
•Discuss Two Events (Hybrid/Traditional)
–Hybrid Arctic/Warm Front Enhancing multi lake effect snow band from Lake Ontario
–Traditional (well organized/quasi-stationary single band on sw flw/interacts with arctic boundary)
•Roles of Low-Level Boundaries in moving band downwind of Lake Ontario
•Useful Forecasting Parameters (snowfall rates/amounts/duration)
•    -Shear, Instability, Lift, Moisture
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Hybrid-moderate to high shear >30 degrees of shear, limited pre-event snow band, but when arctic boundary interacts with lake moisture band intensities and produces short duration/heavy snow squalls (near zero vis) Quick moving and snowfall generally under warning criteria.

Traditional- well established quasi stationary for several hours, single lake effect snow band on 260 flow with strong cloud layer winds 40 knots to advect snow squalls 200-300km downwind of lake Ontario into our forecast area. Interacts with surface boundary to produce significant snowfall rates and near zero vis. Several locations usually receive warning criteria snowfall from SLV to Northern Green Mtns. SW orientation of the ausable river valley helps to funnel lake effect band toward PLB with that area receiving advisory criteria snowfall. Elsewhere, Champlain Valley locations usually receive less than advisory criteria snowfall