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Blizzard of 1983

Major Snowstorm Requirements Incorporating Heavy Snow Event (HSE) Status in the Philadelphia Metropolitan Area.

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Blizzard of 1983

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  1. Major Snowstorm Requirements Incorporating Heavy Snow Event (HSE) Status in the Philadelphia Metropolitan Area Widespread (Greater Than 50% Coverage) Snowstorm in the Delaware Valley (southeast PA, southern NJ away from the coastal regions, northern DE, and northeast MD) of 10 inches or more in a 24 hour period

  2. Widespread (Greater Than 50% Coverage) Snowstorm in the Delaware Valley of 10 inches or more February 11-12, 2006 Jan 22-23, 2005 Blizzard of 1983

  3. Thank You Very special thanks to two prominent figures in the meteorological business—Glenn “Hurricane” Schwartz and David Tolleris. Without them, this work would NOT be possible. I hold these gentlemen in high esteem and admire their work and expertise immensely. NBC-10 Chief Meteorologist Glenn “Hurricane” Schwartz initiated the idea of a major snowstorm decision tree for the eastern seaboard (checklist) in the 1980’s. Meteorologist David Tolleris expanded on the original prototype and has applied such checklists to his forecasts. The professional feedback I received from them during this research endeavor was greatly appreciated. Their continued support and collaboration in reference to ongoing meteorological issues is priceless and I am extremely grateful for their contributions. Additionally, thanks also to Larry Cosgrove, Dr. John Lee, John Merritt, Paul Knight, Fred Gadomski, John Skrypek, Bill Conlin, Paul Kocin, James T. Moore, Henry Margusity, Don Sutherland, RaleighWx, Norman Wes Junker, SSC, HM, OSU2, NWS-Mount Holly, Rob Guarino, Kathy Orr, James T. Moore, Paul Kocin, Louis Uccellini, HM, Bill Conlin, and Joe Bastardi, for their peer review and feedback.

  4. Storm Checklist • State of the NAO • 50-50 Low • EPO • PNA Index • QBO • Polar Vortex • Character of 500 hPa Trough/Vorticity Maximum • Character of Surface High Pressure/Low Level Cold Air • Character of Surface Low Pressure • 700 hPa Low Strength and Track • 850 hPa Low Strength and Track • Other Factors to Consider: Snowstorm Dynamics (Heavy Banded Snow), Local Climatology (ENSO etc.), Teleconnections, MJO, Southeast Ridge, Ocean Temperatures, Computer Models, Weekend Rule, and Moon Phases

  5. Storm Checklist (Notable Sites) A COMPREHENSIVE WINTER WEATHER FORECAST CHECKLIST METEOROLOGY EDUCATION AND TRAINING SITE (COMET PROGRAM) AN OPERATIONAL INGREDIENTS BAES METHODOLOGY FOR FORECASTING WINTER SEASON MID-LATITUDE PRECIPITATION CLIMATE INDICIES DATA (GOOD SITE FOR CURRENT AND PAST TELECONNECTION DATA) DT SNOW FORECASTING TECHNIQUES

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