Winter Weather, Lehigh
- When
- January 29, 12:00 PM EST to 7:00 PM EST
- Where
- Lehigh forecast zone
- Reported by
- Mesonet
- Coordinates
- 40.613, -75.592 (the zone’s center; the record gives no point)
Winter Weather in Pennsylvania, January 29, 2011
A weak Alberta Clipper low pressure system that moved through Pennsylvania helped drop 1 to 2 inches of snow across the Poconos and parts of the Lehigh Valley during the afternoon and early evening of the 29th. Snow began falling around Noon EST and ended during the early evening.
Where it happened
Every event with a place to put it; 4 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
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.
A weak Alberta Clipper low pressure system that moved through Pennsylvania helped drop 1 to 2 inches of snow across the Poconos and parts of the Lehigh Valley during the afternoon and early evening of the 29th. Snow began falling around Noon EST and ended during the early evening. Untreated roads were slippery. Specific accumulations included 2.0 inches in Slatington (Lehigh County), 1.5 inches in Pocono Summit (Monroe County) and Palmerton (Carbon County), 1.3 inches in Tobyhanna (Monroe County), 0.9 inches in Allentown (Lehigh County) and 0.6 inches in Martins Creek (Northampton County).
The radar
The national radar mosaic for the moment the first event began.
Event by event
4 winter weather. Local standard time, as filed.
Winter Weather, Northampton
- When
- January 29, 12:00 PM EST to 7:00 PM EST
- Where
- Northampton forecast zone
- Reported by
- Mesonet
- Coordinates
- 40.754, -75.307 (the zone’s center; the record gives no point)
Winter Weather, Carbon
- When
- January 29, 12:00 PM EST to 7:00 PM EST
- Where
- Carbon forecast zone
- Reported by
- Mesonet
- Coordinates
- 40.918, -75.709 (the zone’s center; the record gives no point)
Winter Weather, Monroe
- When
- January 29, 12:00 PM EST to 7:00 PM EST
- Where
- Monroe forecast zone
- Reported by
- Mesonet
- 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
- Winter Weather in Wisconsin, January 29 to 30, 2011
- Winter Storm and Heavy Snow in Montana, January 29 to 30, 2011
- Wildfire in Arkansas, January 29 to 30, 2011
- Winter Storm in Montana, January 29 to 30, 2011
- Winter Weather in New Jersey, January 29, 2011
- Lake-Effect Snow and Winter Weather in Michigan, January 29 to 31, 2011
- High Wind in Texas, January 29, 2011
More
Every storm in Pennsylvania in 2011Every state in 2011This day in weather historyWarnings in Pennsylvania, January 2011
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: 269899, 269900, 269901, 269902.