Potentially Flooding Rainfall On the Way

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For the past several weeks, the area has been very dry. Some regions of Pennsylvania are even in a severe drought. An upper level low pressure system will sit across the Ohio Valley for over 48 hours, pumping heavy bands of rain into Pennsylvania. The key word: bands. We talk about snowfall banding in Winter, and this situation is somewhat similar.

Wednesday Evening, rainfall bands will begin to lift north into South-central PA. As we head into Wednesday Night and Thursday Morning, moderate rain will push north into the Williamsport Area along with much of the Central PA Mountains and Susquehanna Valley. Heaviest rainfall will remain throughout South-central PA.

Thursday Afternoon and on into Thursday Night, very persistent rainfall bands will focus on the South-Central Mountain Regions such as Chambersburg, Bedford, Somerset, and the surrounding region. Some locations could pick up as much as 3-4″ of rain in an 18 hour period between Thursday Afternoon and Friday Morning.

Rain will begin to clear out of the state Friday Afternoon, however areas of light to moderate rain are still likely especially across Western Pennsylvania.

Here is our Rainfall Forecast.


As mentioned, highest rainfall amounts will be in Central Pennsylvania. With that said, 1-3″ of rainfall is still likely for much of Eastern and Western PA.

Here is our Flooding Risk Map.


South-central Pennsylvania is most at risk to see moderate flooding. Locations in heavy and persistent rainfall bands will be at risk of flash flooding.

For future updates on this event and others to come, make sure you have our page liked on Facebook >>>PA Weather Action on Facebook! Furthermore, go ahead and share this forecast if you live in or have family in the impacted areas! Stay safe everyone!

Hello, my name is Josh Adams. This year I am a junior in high school in South Central PA. I have had a passion for weather since I was five or six years old, watching the Weather Channel when the average kid my age was watching cartoons. At age 11, I discovered that there is a significant amount of weather info online from knowledgeable meteorologists to weather models and everything in between. I had the privilege to take part in a group that held informational weather discussions nearly everyday. I gained a significant amount of knowledge in several months back in 2012, constantly studying meteorology for hours each and just about every day. I created Northeast Weather Action in early 2013, just after the previous winter had ended. Things were pretty slow to start, however the winter of 2013-2014 greatly helped grow the page. Several of my forecasts verified nicely across the area. I met Chris during that winter in a facebook group, and we talked often about anticipated weather events. Just before the start of the 2014-2015 Winter, I added Chris to Northeast Weather Action (now Pennsylvania Weather Action), and once again we hit several key forecasts. Chris and I are looking forward to giving you the most up to date and reliable forecasts!

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