A pair of low pressure systems, one that moved from the Northern Plains into western Pennsylvania before dissipating and a second one that developed near Wilmington North Carolina the morning of the 20th produced a steady snow across Eastern Pennsylvania with the heaviest snow in the southeast part of the state. This was the first widespread accumulation of the winter season. It was also the latest measurable inch in East Stroudsburg since the winter of 1965-66. Snow overspread the region during the predawn hours on the 20th and ended from west to east that evening.  Most accumulations were between 2 and 5 inches. The snow led to numerous accidents, some of them serious. At 4 p.m. EST a Ford Explorer slid into a curb on the Park Avenue Bridge in Stroudsburg (Monroe County). The vehicle went into the air, struck a guardrail and knocked a large chunk of concrete onto Interstate 80. The driver and two children were injured, but no problems occurred on Interstate 80 itself. In Berks County, Pennsylvania State Route 501 was closed twice because of accidents in Bethel Township.  The intersection of Pennsylvania State Routes 662 and 73 in Oley Township was closed because of numerous accidents. In Chester County, one man suffered a heart attack and died after being involved in an auto accident. U.S. Route 30 in East Whiteland Township and Pennsylvania State Route 100 in Upper Uwchlan Township were closed because of accidents and icy conditions. Thursday's (the 20th) rush hour traffic crawled on both Interstates 95 and 76 in and around Philadelphia with numerous fender benders. Most schools were closed in Berks, Chester and Delaware Counties. Many others had early dismissals. The Philadelphia International Airport had dozens of canceled flights, many involving other northeast destinations. Accumulations across the region (going southeast to northwest) included: in Philadelphia 2.5 inches at both the Franklin Institute and the Philadelphia International Airport; in Delaware County 5 inches in Springtown and 3.5 inches in Newtown Square; in Chester County 5 inches in Honey Brook and Valley Forge and 3.8 inches in Glenmoore; in Montgomery County 4 inches in Willow Grove and 3.5 inches in Palm; in Bucks County 4 inches in Perkasie, Springtown and Southampton and 3.5 inches in Doylestown; in Berks County 5.5 inches in Robesonia, 3 inches at the Blue Marsh Lake and 2.4 inches in Hamburg; in Lehigh County 4 inches in Breinigsville and 1.5 inches at the Lehigh Valley International Airport; in Northampton County 1.7 inches in Bath; in Carbon County 3.8 inches in Lehighton and in Monroe County 3 inches in Long Pond, 2 inches in Tobyhanna and 1.9 inches in East Stroudsburg.

Heavy Snow in DELAWARE, PENNSYLVANIA
From 20-JAN-00 05:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in BERKS, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in BUCKS, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in CARBON, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in CHESTER, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in LEHIGH, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in MONROE, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in MONTGOMERY, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in NORTHAMPTON, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER

Heavy Snow in PHILADELPHIA, PENNSYLVANIA
From 20-JAN-00 04:00:00 to 20-JAN-00 23:00:00 (EST)
Reported by: TRAINED SPOTTER