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Final week of April starts with rain in Maine

A slow-moving storm will bring plenty of rain to the state to start the week.
Credit: jason nappi
Credit: jason nappi

MAINE, Maine — The weather pattern to start the week is featuring a blocking pattern. Think of it like a storm riding smoothly on the weather highway (jet stream) until it hits traffic on I-95 in Maine and slows to a crawl. That's what will happen early this week as low pressure develops over southern New England and slows down over Maine.

Credit: jason nappi

Rain will begin in New Hampshire early Sunday morning and spread into Maine after daybreak. 

Credit: jason nappi

The rain will be heavy at times for southern Maine in the mid to late morning on Sunday, but it will be dry for central, northern, and Downeast Maine.

Credit: jason nappi

A strong easterly breeze will keep temps in the 40s for southern Maine, while it will be warmer with sunshine over eastern parts of the state before the rain arrives.

Credit: jason nappi

Low pressure moving over southern New England will be very slow to make any progress north. Due to the placement of the low, our wind will come off the ocean. 

Credit: jason nappi

The persistent rain will lead to minor flooding in small streams. Up to 2 inches or more of rainfall is expected for parts of southern Maine.

Credit: jason nappi

There will only be snow at the highest peaks of Maine and New Hampshire with this storm. 

Credit: jason nappi

Here's a look at how much snow you can expect:

Credit: jason nappi

The storm will start to pull away as the "traffic" on the weather highway (jet stream) lessens by Tuesday. However, there will still be on-and-off showers continuing into the middle of next week. 

Credit: jason nappi

You can post rainfall and snowfall amounts by following me on social media.

-Meteorologist Jason Nappi

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