By Tuesday morning residents and visitors to Philadelphia will wonder what hit them when they step outside.
Motorists and pedestrians should be on the lookout for icy patches Monday evening as arctic air blasts quickly into the region. In some cases, ice can form before paved, concrete and wooden surfaces have a chance to dry out.
It will feel about 70 degrees colder Tuesday morning, compared to the morning drive Monday.
RealFeel® temperatures will be below zero much of the day Tuesday. Despite bright sunshine, actual high temperatures will be in the lower teens across the metro area.
Tuesday will be the coldest day since Feb. 5, 1996, over much of the coastal mid-Atlantic.
Weather conditions Monday night through Tuesday will make it dangerous to be outdoors for long periods of time without being properly dressed.
There is some good news for folks struggling with the cold.
Temperatures will slowly trend upward later this week and could touch 50 degrees in some locations this weekend.
Tune in to AccuWeather Live Mornings every weekday at 7 a.m. EST. We will be talking the brutal cold and when the next warmup is in store.
Earlier this week, a strengthening nor'easter battered New England, causing widespread damage across the region while storms continued to drench and blast the coastal Northwest.
Conditions will improve across the Northeast on Friday as this week's nor'easter shifts away from the region.
A siege of Pacific storms will continue to drench and blast the coastal Northwest into next week and will be joined by Ana.
After many locations over the Plains feel like late summer this weekend, the record-challenging warmth will expand to the Northeast next week.
The disturbance responsible for drenching South Florida downpours will swing toward Bermuda this weekend, while the former Tropical Depression 9 lurks in the northwestern Caribbean Sea.
The NFL returns to London this weekend amid a mild stretch of weather.
New England (1785)
Four day rains put Merrimac River in NH and MA to greatest flood height ever known -- extensive bridge and mill damage.
Mid-Atlantic Coast (1878)
Hurricane did extensive damage in NC, VA, MD, NJ and PA. "Philadelphia's worst" -- 84 mph wind gust at Cape May, NJ; 28.82" pressure at Annapolis, MD.
Bar Harbor, ME (1947)
Wind-driven forest fires destroyed homes and medical research institute. 17 died; $30 million damage.