Pennsylvania, 2005

Winter Weather in Pennsylvania, March 11 to 12, 2005

March 11 to 12, 2005 · NWS PHI · 2 events in 2 counties and zones

Periods of light snow fell across the Poconos from just after Midnight EST on the 11th until around sunrise on the 12th. The snow had a difficult time accumulating during the daytime as most of the accumulating snow fell overnight on the 11th.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

Periods of light snow fell across the Poconos from just after Midnight EST on the 11th until around sunrise on the 12th. The snow had a difficult time accumulating during the daytime as most of the accumulating snow fell overnight on the 11th. Accumulations averaged around two inches. Untreated and less traveled roads were treacherous. The snow was caused by an "Alberta type" low pressure system that moved from northern Minnesota on the morning of the 10th east into Lake Erie around sunrise on the 11th. The low moved through the Poconos early in the evening on the 11th and intensified as it moved east reaching just south of Nantucket, Massachusetts around sunrise on the 12th. Heavier snow fell farther to the northeast.

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 Mar 10, 8:30 PM EST, 4 hours 30 minutes earlier.

Area forecast discussion, Mar 10, 8:30 PM EST, 4 hours 30 minutes before
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Hazardous weather outlook, Mar 10, 4:45 AM EST, 20 hours 15 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 winter weather. Local standard time, as filed.

Winter Weather, Carbon

When
March 11, 1:00 AM EST to March 12, 6:00 AM EST
Where
Carbon forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.918, -75.709 (the zone’s center; the record gives no point)

Winter Weather, Monroe

When
March 11, 1:00 AM EST to March 12, 6:00 AM EST
Where
Monroe forecast zone
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.058, -75.339 (the zone’s center; the record gives no point)

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 2005Every state in 2005This day in weather historyWarnings in Pennsylvania, March 2005

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: 5439444, 5439445.