Intensifying storm to bring strong winds, heavy rain and some snow to Midwest, East

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Stormy Week Ahead for East Coast

By Weather.com

An intensifying area of low pressure will deliver a trifecta of inclement weather to portions of the Midwest and East through Thursday. Those impacts include strong winds, soaking rainfall that will contribute to commuting hassles, and even a little snow.

The area of low pressure that will strengthen is the one that brought heavy rain, gusty winds and coastal flooding to parts of the Gulf Coast the last few days, and formed partially in response to the mid- and upper-level remnants of Hurricane Patricia this past weekend. As that low moves northward, it will get an injection of energy from a weather system moving into the Midwest, allowing it to strengthen significantly.

RECAP: Texas, Louisiana Soaked from Patricia Remnant

Let's break down the impacts below starting with the winds.

Strong Winds Could Down Tree Limbs, Cause Power Outages

The main threat of strong winds will be Wednesday and Thursday from two different sources.

First, bands of rain and thunderstorms may produce strong wind gusts ahead of a cold front from the Appalachians to much of the Eastern Seaboard from the Carolinas to southern New England. The strong wind gusts over 50 mph may lead to some power outages and downed trees and limbs Wednesday afternoon into Wednesday night.

CITIES: New York | Philadelphia | Raleigh | Washington, D.C.

Locations with the greatest chance for damaging wind gusts are shaded red on our thunderstorm forecast map. However, strong wind gusts are also possible in the areas shaded orange. In areas farther north, these strong gusts may occur simply with bands of rain without lightning.

In addition, the pressure gradient around the large-scale low pressure system pivoting into eastern Canada will produce strong winds over a larger area of the Plains, Midwest and Great Lakes Wednesday. Those strong winds will persist in the Great Lakes through Thursday.

Most locations will see sustained winds of 20 to 30 mph with higher gusts. However, even stronger winds with gusts in excess of 60 mph are possible along the east and southeast shores of Lakes Erie and Ontario. The National Weather Service has posted high wind warnings for those locations. Tree damage, power outages and lakeshore flooding are possible.

Locally Heavy Rain Will Cause Travel Hassles

Steady rainfall, heavy at times, is spreading through the Ohio Valley, Great Lakes, Mid-Atlantic and Northeast into early Thursday. Here's an overview of the forecast timing showing when you can expect travel hassles.

Wednesday: Most of the Northeast and Mid-Atlantic will be impacted by the rain, which could be heavy at times. This may result in both commuting delays on the roads and at all major airports in the region. Some minor or poor drainage flooding is also possible. The rain may also be accompanied by localized strong wind gusts as mentioned above.

CITIES: Boston | New York | Pittsburgh | Philadelphia | Washington, D.C.

Thursday: The bulk of the rain should be finished, but some showers may linger in New England and Upstate New York. Lake-effect rain or snow bands are possible in the northern and eastern Great Lakes.

A Little Snow From Fleeting Cold Air

The powerful low-pressure system will allow some colder air to sweep through the Midwest Wednesday into Thursday. It's not a noteworthy cold air mass for late October, with high temperatures about 5 to 10 degrees below average in most spots across the region.

However, the combination of strong winds and chilly temperatures will produce wind chill values in the 10s and 20s across parts of the Upper Midwest and northern Plains Wednesday night and Thursday morning.

However, just enough moisture and cold air may combine to bring snow or a rain-snow mix to parts of the Upper Midwest Wednesday and especially Wednesday night into early Thursday. Any slushy accumulations should be minor, and confined to elevated or grassy surfaces in North Dakota, Minnesota, Wisconsin and the Upper Peninsula of Michigan.

Temperatures will quickly turn milder by this weekend across the Midwest, with high temperatures rising above average.

RELATED GALLERY: See pictures of Hurricane Patricia, which hit North America last week:

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Hurricane Patricia storm photos, satellite photos and evacuations
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Intensifying storm to bring strong winds, heavy rain and some snow to Midwest, East
IN SPACE - In this handout photo provided by NASA, Hurricane Patricia is seen from the International Space Station. The hurricane made landfall on the Pacfic coast of Mexico on October 23. (Photo by Scott Kelly/NASA via Getty Images)
This satellite image taken at 10:45 a.m. EDT on Friday, Oct. 23, 2015, and released by the National Oceanic and Atmospheric Administration shows Hurricane Patricia moving over Mexico's Pacific Coast. Hurricane Patricia headed toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere that forecasters said could make a "potentially catastrophic landfall" later in the day. (NOAA via AP)
View of a breakwater following the passage of Hurricane Patricia in Puerto Vallarta, Mexico on October 24 ,2015. Record-breaking Hurricane Patricia weakened to a tropical storm over north-central Mexico on Saturday, dumping heavy rain that triggered flooding and landslides but so far causing less damage than feared. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
View of a street in Manzanillo, Colima state, Mexico on October 23, 2015, during hurricane Patricia. The strongest hurricane ever recorded crashed into Mexico's Pacific coast on Friday, ratcheting up fears that super-storm Patricia will unleash death and destruction with its powerful winds and driving rain. AFP PHOTO / Jonathan Levinson (Photo credit should read Jonathan Levinson/AFP/Getty Images)
View of the street during the arrival of hurricane Patricia in Puerto Vallarta, Mexico on October 23 ,2015. Monster Hurricane Patricia roared toward Mexico's Pacific coast on Friday, prompting authorities to evacuate villagers, close ports and urge tourists to cancel trips over fears of a catastrophe. The US National Hurricane Center called Patricia the strongest eastern north Pacific hurricane on record. It said the storm will make a potentially catastrophic landfall later Friday in southwestern Mexico. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Municipal workers collect branches from a flooded street in Manzanillo, Colima state, Mexico on October 23, 2015, during hurricane Patricia. The strongest hurricane ever recorded crashed into Mexico's Pacific coast on Friday, ratcheting up fears that super-storm Patricia will unleash death and destruction with its powerful winds and driving rain. AFP PHOTO / Jonathan Levinson (Photo credit should read Jonathan Levinson/AFP/Getty Images)
View of Puerto Vallarta, Mexico on October 23, 2015, during hurricane Patricia. Monster Hurricane Patricia roared toward Mexico's Pacific coast on Friday, prompting authorities to evacuate villagers, close ports and urge tourists to cancel trips over fears of a catastrophe. The US National Hurricane Center called Patricia the strongest eastern north Pacific hurricane on record. It said the storm will make a potentially catastrophic landfall later Friday in southwestern Mexico. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Puerto Vallarta #Huracán @Patricia https://t.co/sEEBdzwbdG
Hurricane Patricia https://t.co/Om0nKibkMY
VIDEO: Hurricane #Patricia: in Cihuatlán in the state of Colima. Palm trees figting against wind. https://t.co/urNul5eiIJ v @alezrodriguez
Members of the Red Cross prepare a temporary shelter in Puerto Vallarta, Mexico on October 23 ,2015, during hurricane Patricia. Monster Hurricane Patricia roared toward Mexico's Pacific coast on Friday, prompting authorities to evacuate villagers, close ports and urge tourists to cancel trips over fears of a catastrophe. The US National Hurricane Center called Patricia the strongest eastern north Pacific hurricane on record. It said the storm will make a potentially catastrophic landfall later Friday in southwestern Mexico. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Mexican soldiers patrol streets during the arrival of hurricane Patricia in Puerto Vallarta, Mexico on October 23 ,2015. Monster Hurricane Patricia roared toward Mexico's Pacific coast on Friday, prompting authorities to evacuate villagers, close ports and urge tourists to cancel trips over fears of a catastrophe. The US National Hurricane Center called Patricia the strongest eastern north Pacific hurricane on record. It said the storm will make a potentially catastrophic landfall later Friday in southwestern Mexico. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Mike Anderson of Minnesota, right, fishes alongside his friend and local fisherman Miguel Pilas during a steady rain as Hurricane Patricia approaches Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Hurricane Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. (AP Photo/Rebecca Blackwell)
This satellite image taken at 8:45 p.m. EDT on Thursday, Oct. 22, 2015, and released by the National Oceanic and Atmospheric Administration shows Hurricane Patricia, left, moving over Mexico's central Pacific Coast. The powerful Category 4 storm bore down on Mexico's central Pacific Coast on Thursday night, for what forecasters said could be a devastating blow, as officials declared a state of emergency and handed out sandbags in preparation for flooding. (NOAA via AP)
This satellite image taken at 9:30 a.m. EDT on Friday, Oct. 23, 2015, and released by the National Oceanic and Atmospheric Administration shows Hurricane Patricia. Hurricane Patricia headed toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere that forecasters said could make a "potentially catastrophic landfall" later in the day. (NOAA/RAMMB/CIRA via AP)
This image taken Friday, Oct. 23, 2015, from the International Space Station shows Hurricane Patricia. The Category 5 storm, the strongest recorded in the Western Hemisphere, barreled toward southwestern Mexico Friday. (Scott Kelly/NASA via AP)
This satellite image taken at 1:45 p.m. EDT on Friday, Oct. 23, 2015, and released by NASA, shows the eastern quadrant and pinhole eye of Hurricane Patricia moving towards southwestern Mexico. The Category 5 storm is strongest ever in the Western Hemisphere, according to forecasters. (NOAA GOES Project/NASA via AP)
A couple looks out to sea as rainfall increases with the approach of Hurricane Patricia in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Hurricane Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. (AP Photo/Rebecca Blackwell)
Residents prepare for the arrival of Hurricane Patricia filling sand bags to protect beachfront businesses, in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. Locals and tourists were either hunkering down or trying to make last-minute escapes ahead of what forecasters called a "potentially catastrophic landfall" later in the day. (AP Photo/Rebecca Blackwell)
Mexican and international tourists board a bus to be transported to a shelter, bracing for the arrival of Hurricane Patricia in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Teams of police and civil protection are walking along Puerto Vallarta's waterfront, advising people to evacuate. A top civil protection official says that three airports in the path of Patricia in southwestern Mexico have been shut down as the storm approaches. (AP Photo/Rebecca Blackwell
People seeking safety from Hurricane Patricia, stand in line to be taken to another shelter because the one they had just arrived at was full, in the Pacific resort city Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. Residents and tourists were hunkering down or trying to make last-minute escapes ahead of what forecasters called a "potentially catastrophic landfall" later in the day. (AP Photo/Cesar Rodriguez)
Evacuees remain at a shelter in Puerto Vallarta, Mexico on October 23 ,2015, during hurricane Patricia. Monster Hurricane Patricia roared toward Mexico's Pacific coast on Friday, prompting authorities to evacuate villagers, close ports and urge tourists to cancel trips over fears of a catastrophe. The US National Hurricane Center called Patricia the strongest eastern north Pacific hurricane on record. It said the storm will make a potentially catastrophic landfall later Friday in southwestern Mexico. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
A girl rests on the floor amidst her family as they await the arrival of Hurricane Patricia in a small shelter run by the Red Cross in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Hurricane Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. (AP Photo/Rebecca Blackwell)
A worker boards up the front of a waterfront business, as residents prepare for the arrival of Hurricane Patricia in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Patricia barreled toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere. Locals and tourists were either hunkering down or trying to make last-minute escapes ahead of what forecasters called a "potentially catastrophic landfall" later in the day. (AP Photo/Rebecca Blackwell)
View of street at Boca de Pascuales community as residents are evacuated by local authorities before the arrival of hurricane Patricia in Colima State, Mexico on October 22,2015. Fast-moving Patricia grew into an 'extremely dangerous' major hurricane off Mexico's Pacific coast on Thursday, forecasters said, warning of possible landslides and flash flooding. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Men fill small bags with sand from the beach as they prepare for the arrival of Hurricane Patricia in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Patricia headed toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere that forecasters said could make a "potentially catastrophic landfall" later in the day. (AP Photo/Rebecca Blackwell)
A worker carries a table at a seaside restaurant preparing for the arrival of hurricane Patricia in the Pacific resort city of Puerto Vallarta, Mexico, Thursday, Oct. 22, 2015. Hurricane Patricia grew into a monster, Category 5 storm and bore down on Mexicoâs central Pacific Coast, on or near Puerto Vallarta, on Thursday night for what forecasters said could be a devastating blow, as officials declared a state of emergency and handed out sandbags in preparation for flooding. (AP Photo/Cesar Rodriguez)
Residents of Boca de Pascuales, Colima State, Mexico, are evacuated on October 22, 2015, before the arrival of hurricane Patricia. Fast-moving Patricia grew into an 'extremely dangerous' major hurricane off Mexico's Pacific coast on Thursday, forecasters said, warning of possible landslides and flash flooding. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
An employee rolls up matts at a Sheraton beachfront hotel as staff prepare for the arrival of Hurricane Patricia, in Puerto Vallarta, Mexico, Friday, Oct. 23, 2015. Patricia headed toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere that forecasters said could make a "potentially catastrophic landfall" later in the day. (AP Photo/Rebecca Blackwell)
A man leaves his house in Boca de Pascuales, Colima State, Mexico, on October 22, 2015, before the arrival of hurricane Patricia. Fast-moving Patricia grew into an 'extremely dangerous' major hurricane off Mexico's Pacific coast on Thursday, forecasters said, warning of possible landslides and flash flooding. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
People preparing for the arrival of hurricane Patricia board up the windows of a seaside business in the Pacific resort city of Puerto Vallarta, Mexico, Thursday, Oct. 22, 2015. Hurricane Patricia grew into a monster, Category 5 storm and bore down on Mexicoâs central Pacific Coast, on or near Puerto Vallarta, on Thursday night for what forecasters said could be a devastating blow, as officials declared a state of emergency and handed out sandbags in preparation for flooding. (AP Photo/Cesar Rodriguez)
People preparing for the arrival of Hurricane Patricia break down their souvenir shop in the Pacific resort city Puerto Vallarta, Mexico, Thursday, Oct. 22, 2015. Patricia headed toward southwestern Mexico Friday as a monster Category 5 storm, the strongest ever in the Western Hemisphere that forecasters said could make a "potentially catastrophic landfall" later in the day. (AP Photo/Cesar Rodriguez)
People preparing for the arrival of hurricane Patricia board up a souvenir shop in the Pacific resort city of Puerto Vallarta, Mexico, Thursday, Oct. 22, 2015. Hurricane Patricia grew into a monster, Category 5 storm and bore down on Mexicoâs central Pacific Coast, on or near Puerto Vallarta, on Thursday night for what forecasters said could be a devastating blow, as officials declared a state of emergency and handed out sandbags in preparation for flooding. (AP Photo/Cesar Rodriguez)
Residents of Boca de Pascuales, Colima State, Mexico, are evacuated on October 22, 2015, before the arrival of hurricane Patricia. Fast-moving Patricia grew into an 'extremely dangerous' major hurricane off Mexico's Pacific coast on Thursday, forecasters said, warning of possible landslides and flash flooding. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
Waves break on the beach in Boca de Pascuales, Colima State, Mexico, on October 22, 2015. Fast-moving Patricia grew into an 'extremely dangerous' major hurricane off Mexico's Pacific coast on Thursday, forecasters said, warning of possible landslides and flash flooding. AFP PHOTO/HECTOR GUERRERO (Photo credit should read HECTOR GUERRERO/AFP/Getty Images)
People throw stones into the ocean as hurricane Patricia nears in the Pacific resort city of Puerto Vallarta, Mexico, Thursday, Oct. 22, 2015. Hurricane Patricia grew into a monster, Category 5 storm and bore down on Mexicoâs central Pacific Coast, on or near Puerto Vallarta, on Thursday night for what forecasters said could be a devastating blow, as officials declared a state of emergency and handed out sandbags in preparation for flooding. (AP Photo/Cesar Rodriguez)
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