We have adjusted our rainfall forecast map based on the prevalent western trend with today’s coastal low pressure. Higher amounts of 4-6″ of rain are now likely back into Central PA, and remain likely in Eastern PA. Keep in mind not all of this will fall today, but a solid 2-3″ and locally 4″ will.
Flash Flood Watches have been posted for the Delaware Valley and the Lower Susquehanna Valley, in effect until late tonight:
Sunday Morning will be mainly dry before showers start to work their way into Southern PA. Monday to Thursday will be rain-filled, however there will be breaks in the rain. We are still holding out hope that next weekend will be mainly dry.

UPDATED RAINFALL FORECAST MAP

Area Red: Total rainfall amounts of 4-6″ are expected. Prepare for basement flooding and avoid flooded roadways.

Area Orange: Total rainfall amounts of 3-4″ are expected. Prepare for basement flooding and avoid flooded roadways.

Area Yellow: Total rainfall amounts of 2-3″ are expected. Isolated flash flooding possible.

Area Green: Total rainfall amounts of 1-2″ are expected.

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Last updated on July 21, 2018
Josh has been passionate about weather as long as his memory dates! From watching the Weather Channel at age 7, to making hand-drawn hurricane maps at age 11, starting his first weather site at 13, and founding PWA at 15 and forecasting for the state for the past 9 years, Josh's interest in weather has never dwindled! As difficult as it is, he greatly enjoys forecasting for Pennsylvania due to its countless microclimates. The state is an East Coast severe weather hotspot and nearly always home to the rain/snow line during winter storms!
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