Powerful fall storm to bring strong wind and heavy rain to the Midcoast

Power outages are likely
By Chief Meteorologist Tyler Southard | Oct 29, 2017
A visible satellite image of the large storm forming along the east coast Sunday.

A strong fall storm will bring powerful winds and heavy rain to the Midcoast and Northeast United States Sunday night and through Monday.


A rapidly intensifying area of low pressure that has phased with the short lived Tropical Storm Philippe will move north through the Hudson River Valley Sunday night and Monday morning then continue to move north into Quebec Monday afternoon. This low will pull a cold front through the region during the mid day hours on Monday creating a shift in winds as colder and drier air move in along gusty winds. The secondary low pressure of Philippe will move through the western Gulf of Maine early Monday morning and will contain the strongest winds which could reach hurricane force wind gusts for the Maine coast. High pressure will return to the region Tuesday and during the middle of the week with colder and calmer conditions.


Rain will begin during the early night Sunday as well as the breezier winds with both picking up in intensity after midnight. The core of the strongest winds will begin across the Midcoast around Midnight and continue until the mid morning hours, peaking around sunrise. During this period, sustained winds will hold out of the southeast between 20 to 40mph with gusts ranging from 40 to 60mph. The highest wind speeds will be seen closer to the coast and higher elevations. Stronger gusts of 60 to 75mph may be observed offshore and along the immediate coastline, and higher elevations above 1,000 feet. Again, the strongest winds will peak around sunrise between 5am and 8am.


Wind will calm some after the passing of a cold front during the mid to late morning hours as winds shift to the south, southwest, and eventually west through the remainder of the day, sustained between 15 to 25mph with occasional higher gusts. This will transfer in cooler and drier air with a marked change in conditions through Monday.


Rains will started off scattered early Sunday night and pick up in intensity after Midnight and into the early morning hours of Monday with embedded thunderstorms creating additional commotion. These storms will create the heaviest downpours. Showers will become light to moderate by mid morning and continue into Monday afternoon before ending during the late afternoon and evening. Rainfall totals will range between 1/2" and 1.5" with locally higher amounts especially in the mountains.


Marine conditions will be very dangerous through Monday with sea heights of 6 to 11 feet for Penobscot Bay and 17 to 25 feet for the northern Gulf of Maine. Seas by Tuesday morning will still be high offshore with 8 to 12 foot waves.


The combination of high winds and more rain on top of an already saturated ground after last week's rain could result in downed limbs and trees. Most of the remaining foliage should blow off as well. Halloween decorations or any loose outdoor items should be secured or brought indoors.


This storm is likely to result in power outages across the Midcoast and region and may take longer to be restored due to the large area impacted by this storm. It is important to take proper precautions during this time by having needed food, water, lights, batteries, charged phones, and are using safe backup heating sources. Low temperatures are expected to dip into the 40s Monday night and 30s Tuesday night with highs dropping to the 50s.

Projected sustained wind speeds Monday morning.
Wind advisories as of Sunday evening.
Flood advisories as of Sunday evening.
Marine advisories as of Sunday evening.
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