Pennsylvania, 2007

Winter Weather in Pennsylvania, January 18, 2007

January 18, 2007 · NWS PHI · 1 event in 1 county or zone

An inverted trough developed along the Middle Atlantic coastal waters during the day on the 18th. The convergent flow near this trough helped some light snow to fall across the local Philadelphia during the afternoon of the 18th.

The toll

Deaths
0
Injuries
4
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

An inverted trough developed along the Middle Atlantic coastal waters during the day on the 18th. The convergent flow near this trough helped some light snow to fall across the local Philadelphia during the afternoon of the 18th. It was the first widespread measurable snow of the winter season, even though all places accumulated less than half an inch. Temperatures were right around the freezing mark and the snow caused untreated bridges and overpasses to become slippery. In Bucks County, in Falls Township, twenty-one vehicles were involved in accidents on an icy railroad overpass on Lincoln Highway. Drivers had trouble stopping on the overpass as they started their downhill descent. Several people were injured and one was hospitalized because of a leg injury. There were other minor accidents during the evening commute on bridges and overpasses in lower Bucks County. Accumulations included 0.1 inches at the Philadelphia International Airport.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Jan 18, 11:15 AM EST, 2 hours 45 minutes earlier.

Area forecast discussion, Jan 18, 11:15 AM EST, 2 hours 45 minutes before
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Hazardous weather outlook, Jan 18, 5:35 AM EST, 8 hours 25 minutes before
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Event by event

1 winter weather. Local standard time, as filed.

Winter Weather, Bucks

When
January 18, 2:00 PM EST to 6:00 PM EST
Where
Bucks forecast zone
Injuries
0 direct, 4 indirect
Reported by
Newspaper

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Pennsylvania in 2007Every state in 2007This day in weather historyWarnings in Pennsylvania, January 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 12023.