Low pressure tracked through western Pennsylvania on the night on February 24 into the morning of February 25. A weak secondary area of low pressure developed off the New Jersey coast on the 25th. This complex system brought a period of precipitation to the mid-Atlantic. With the main low tracking west of the region, warmer air rushed in aloft, limiting the potential for snow to fall. However, a strong Canadian high pressure to the north, combined with the developing secondary low, caused cold air to be trapped near the surface. This caused precipitation to fall as a wintry mix across the region, including as several hours of sleet and freezing rain. In some cases, the ice accretion was enough to cause tree and power line damage. The system pulled away from the region by the afternoon of the 25th with warmer and drier weather following behind it.

Winter Weather in MONROE, PENNSYLVANIA
From 25-FEB-22 00:30:00 to 25-FEB-22 11:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Mixed precipitation fell. The Mount Pocono ASOS (KMPO) reported 0.13 inches of ice accretion, and a trained spotter near Mount Pocono also reported 0.9 inches of snow and sleet accumulation.

Winter Weather in CARBON, PENNSYLVANIA
From 25-FEB-22 00:00:00 to 25-FEB-22 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Mixed precipitation fell. While no direct reports were received from the county, observations from surrounding areas suggest around a tenth of an inch of freezing rain and up to an inch of snow and sleet accumulation likely occurred.

Winter Weather in NORTHAMPTON, PENNSYLVANIA
From 25-FEB-22 00:00:00 to 25-FEB-22 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Mixed precipitation fell. A trained spotter in Bath reported 0.60 inches of planar ice accretion, though this may have been too high. A trained spotter in Williams Twp reported 0.30 inches of radial ice accretion. In addition, a trained spotter in Forks Twp reported 0.5 inches of sleet accumulation.

Winter Weather in LEHIGH, PENNSYLVANIA
From 24-FEB-22 23:30:00 to 25-FEB-22 10:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Mixed precipitation fell. A CoCoRaHS observer near Ancient Oaks reported 0.50 inches of ice accretion. The Lehigh Valley International Airport (KABE) ASOS recorded 0.27 inches of ice accretion. A trained spotter in Whitehall Twp reported 0.20 inches of ice accretion and 0.6 inches of snow and sleet accumulation.

Ice Storm in BERKS, PENNSYLVANIA
From 24-FEB-22 23:00:00 to 25-FEB-22 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell. A trained spotter in Mertztown reported 0.50 inches of ice accretion. The Reading Regional Airport (KRDG) ASOS reported 0.26 inches of ice accretion. A few reports of tree and utility damage were received, including wires downed on Morgantown Rd near Furnace Rd.

Ice Storm in UPPER BUCKS, PENNSYLVANIA
From 24-FEB-22 23:30:00 to 25-FEB-22 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell. A trained spotter in East Rockhill Twp reported 0.25 inches of ice accretion, and a number of icing related power outages occurred in the area.

Winter Weather in LOWER BUCKS, PENNSYLVANIA
From 24-FEB-22 23:00:00 to 25-FEB-22 09:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Freezing rain fell. The Doylestown Airport (KDYL) ASOS recorded 0.25 inches of ice accretion. Amounts decreased moving closer to the Delaware River.

Ice Storm in WESTERN MONTGOMERY, PENNSYLVANIA
From 24-FEB-22 23:00:00 to 25-FEB-22 09:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Freezing rain fell. The Pottstown Limerick Airport (KPTW) ASOS recorded 0.33 inches of ice accretion, and several reports of downed trees and wires were received, affecting up to a couple thousand utility customers at its peak.

Winter Weather in EASTERN MONTGOMERY, PENNSYLVANIA
From 24-FEB-22 22:00:00 to 25-FEB-22 09:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell before transitioning to plain rain. A trained spotter in Willow Grove reported 0.06 inches of ice accretion.

Ice Storm in WESTERN CHESTER, PENNSYLVANIA
From 24-FEB-22 22:00:00 to 25-FEB-22 09:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell. A trained spotter in East Nantmeal Twp reported 0.30 inches of radial ice accretion. Numerous reports of downed trees and power lines were received, affecting several thousand customers at its height.

Ice Storm in EASTERN CHESTER, PENNSYLVANIA
From 24-FEB-22 22:00:00 to 25-FEB-22 08:30:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell. A trained spotter near Phoenixville reported 0.13 inches of ice accretion. Higher amounts likely occurred, as a number of downed tree and power outage reports were received from the area.

Winter Weather in PHILADELPHIA, PENNSYLVANIA
From 24-FEB-22 22:00:00 to 25-FEB-22 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Freezing rain fell before transitioning to plain rain. The Philadelphia International Airport (KPHL) ASOS recorded 0.25 inches of ice accretion, though this was likely not representative of overall totals, which were lower due to warm ground effects.

Winter Weather in DELAWARE, PENNSYLVANIA
From 24-FEB-22 21:30:00 to 25-FEB-22 06:00:00 (EST-5)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Freezing rain fell before transitioning to plain rain. A trained spotter in Chadds Ford Twp reported 0.20 inches of ice accretion. Isolated power outages were reported, mainly in far western portions of the county.