The most severe winter weather yet will assault the area late this week.
NOTE: This blog will be going into breaking weather news coverage on Wednesday, due to the massive winter storm slated to hit the Eastern coast of the United States.
Unforgiving cold has punished the eastern third of the United States for the past 10 days. But the most severe winter weather yet will assault the area late this week.
First, a monster storm will hammer coastal locations from Georgia to Maine with ice and snow. By Thursday, the exploding storm will, in many ways, resemble a winter hurricane, battering easternmost New England with potentially damaging winds in addition to blinding snow.
Forecasters are expecting the storm to become a so-called “bomb cyclone” because its pressure is predicted to fall so fast, an indicator of explosive strengthening. The storm could rank as the most intense over the waters east of New England in decades at this time of year. While blizzard conditions could paste some coastal areas, the most extreme conditions will remain well out over the ocean.
In the storm’s wake, the mother lode of numbing cold will crash south — likely the last but most bitter in brutal blasts since Christmas Eve.
The storm: How much snow and wind, and where
The responsible storm is forecast to begin taking shape off the coast of Florida Wednesday, unloading hazardous snow and ice in highly unusual locations not accustomed to such weather. The National Weather Service has already posted winter storm watches from Lake City, Fla. to Norfolk
It is then expected to rapidly intensify, buffeting the Mid-Atlantic beaches and eastern New England, where winter storm watches have also been issued.
The National Weather Service office serving northeast Florida and southeast Georgia cautions that a nasty mix of light freezing rain, light sleet and light snow is expected to develop Wednesday “with significant icing possible.”
In Charleston, one to three inches of snow and sleet is forecast Wednesday, where the Weather Service warns to “plan on difficult travel conditions.”
Here is the latest from WPC regarding the East Coast winter storm for Wednesday and Thursday. pic.twitter.com/kfpoWoT38n
— NWS WPC (@NWSWPC) January 2, 2018
From Norfolk to the Maryland and Delaware beaches, including much of the southern half of the Delmarva Peninsula, 3 to 6 inches of heavy snow are predicted from Wednesday evening to Thursday afternoon.
Farther inland in the Mid-Atlantic, near Interstate 95, the storm’s exact track will be highly consequential. Current computer models suggest most, if not all, snowfall will occur east of Washington and Baltimore on Wednesday night into early Thursday. But small shifts to the west could bring some snow to these cities.
To the north, Philadelphia and New York have a better chance for a coating of snow, but — unless the storm edges closer to the coast — the more significant snow should remain to their east from Atlantic City to eastern Long Island, where at least four to six inches could fall late Wednesday to late Thursday.
By the time the storm reaches the ocean waters east of Long Island and eastern New England on Thursday, it will be explosively intensifying. The storm’s central pressure will have fallen 53 millibars in just 24 hours — an astonishing rate of intensification.
“Some computer models are projecting a minimum central air pressure of below 950 millibars at its peak, which would be nearly unheard of for this part of the world outside of a hurricane,” wrote Mashable’s Andrew Freedman. “For comparison, Hurricane Sandy had a minimum central pressure of about 946 millibars when it made its left hook into New Jersey in 2012.”
Winds will crank in response to this pressure drop, howling to at least 30 to 50 mph along the coast. Winds will be considerably stronger over the ocean — exceeding hurricane force — where enormous waves will form.
In Boston, the Weather Service is predicting not only four to seven inches of snow but also winds strong enough to bring down branches. Throughout eastern Massachusetts and eastern Maine, the combination of wind and snow could create blizzard conditions, especially if the storm wobbles west.
“Our biggest concern is the potential for damaging wind gusts especially near the southeast New England coast,” the Weather Service tweeted. “Power outage risk followed by arctic air Fri/Sat a big concern!”
The cold in its wake: record-breaking
The storm’s enormous circulation will help draw several lobes of the polar vortex, the zone of frigid air encircling the North Pole, over the Mid-Atlantic and Northeast by Friday and Saturday. Wicked cold air sourced from Siberia, the North Pole and Greenland will all converge on the region.
Even in the first 12/28 entry offered, regardless of where this storm tracks, it was quite evident that EVERYTHING pours in behind it. Siberia, North Pole, Greenland. Everything. Severe cold snap behind this storm. Think power may go? Start planning… pic.twitter.com/ye85dPHjcW
— crankyweatherguy (@crankywxguy) January 1, 2018
Temperatures are forecast to be 20 to 40 degrees below normal, the coldest of the winter so far.
Most locations in the Mid-Atlantic and Northeast are predicted to set records for cold temperatures on Friday with highs in the single digits and teens.
On Saturday morning, subzero cold is forecast over almost all of New England, with single digits in the Mid-Atlantic.
Winds, gusting to 30 mph, will make these areas feel 10 to 20 degrees colder.
Finally, after one of the most intense cold spells of such duration on record in parts of New England — including Boston, temperatures are forecast to gradually thaw by early next week.
Reblogging this largely as a signal boost for anyone in these areas that might not know about it yet. Obviously everyone will need to make sure they have backup plans for their own safety, but if you have warm-temp pets, please make sure you have emergency plans in place! Stock up on handwarmers, get insulation like car reflectors and/or styrofoam panels, etc. Even if you don’t expect to lose power, the temperatures being so low could still make it more difficult to keep cages to the normal temps, so keep that in mind.
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