Christmas Eve and Day 2020 Storm

Here is a summary of the significant storm which impacted Central PA

on Christmas Eve and Christmas Day 2020

(as of 10AM 25 Dec 2020)

A significant storm brought 1" to 4" of rain to most of Pennsylvania on Christmas Eve and Christmas Day 2020 (Thursday and Friday, 24-25 December). The rain was followed immediately by a sharp drop in temperatures and several inches of snow over western PA.

The rain fell onto a deep snow pack over much of the state. The snow had fallen from a storm one week before, dropping up to 2 feet of snow over parts of northeastern PA. The snow held as much as 2 inches of water in it before it started to melt in the middle of the week.

The combination of the heavy rain and melting snow brought flooding to most of Central and Eastern PA, especially the Susquehanna and Delaware River basins. You will find below some of the specifics of the storm, including river gauge traces (hydrographs) for many points/cities.

Rainfall from the storm...

Water held in the snow pack before the rain fell...

River Gauge Traces (Hydrographs) = ROLL OVER TO ZOOM IN

Beech Creek Station		Loyalsockville		Danville		Bloomsburg
Spruce Creek		Milton		Sunbury		Penns Creek
Williamsburg		Lewisburg		Harrisburg		Harper Tavern
Camp Hill		Shermansdale		Marietta		Hershey
Shirleysburg		Hogestown		Lancaster		Middletown

Timeline of events...

Earlier Forecast Information