An Arctic blast has arrived following the passage of an overnight cold front and temperatures today will track some 15-20 degrees colder than yesterday. The winds will be quite strong right through tonight bringing wind chill levels down to single digits and there can be a couple of snow showers along the way. It stays well below-normal during the next couple of days and additional snow showers are possible later Thursday into Thursday night. Temperatures moderate on Friday and then it turns milder to start the weekend with the threat of rain shower activity on Saturday. An Arctic cold front arrives by Sunday paving the way for a much colder week ahead, and there can be some snow early next week as we transition to the colder pattern.
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This will be a relatively quiet week across the nation despite another Arctic blast that arrives tonight in the eastern states, but next week looks like a different story. Widespread bitter cold air looks like it will overspread the nation next week and there can be multiple storm threats as well. Temperatures are likely to fall to far below-normal levels across much of the nation in what is from a climatological point-of-view, already the coldest week of the year in many areas.
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High pressure is in control of the weather as we begin the week and temperatures today will be moderately chilly across the Mid-Atlantic region. An Arctic cold front will pass through during the evening hours and it’ll usher in another very cold air mass for the next few days. Temperatures this afternoon will peak near 45 degrees, but likely be confined to 30 degrees for highs on Tuesday and a stiff wind will make it feel even colder than the actual air temperature. It’ll remain colder-than-normal on Wednesday and Thursday as well and then there will be moderation in temperatures late in the week.
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After producing a major impact today on the southern states with significant snow and ice, the low pressure system responsible will head to the coastal waters of the Carolinas by early tomorrow. While support in the upper-atmosphere will be limited for the surface low in terms of its ability to generate significant upward motion, snow is likely to overspread our region before midnight and continue into early Saturday morning. Small accumulations are likely by the time it winds down early Saturday on the order of a coating to a couple of inches. High pressure will follow for the rest of the weekend with a reinforcing cold air mass pushing into the Mid-Atlantic region.
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This cold and active weather pattern will result in another storm system in the short-term and this one will have a major impact on the southern states from New Mexico to the Carolinas with significant snow and disruptive ice. Low pressure will begin to organize over the Texas Gulf coast later today which is much farther to the south compared to the storm system earlier this week that originated over the central Plains. Cold air has penetrated all the way down to the Gulf coast setting the stage for this potentially crippling winter weather event in many southern locations.
This low pressure will push slowly to the east-northeast on Friday from the Deep South to the coastal waters of North Carolina by early Saturday and then continue on a track to the east-northeast of there into the open waters of the western Atlantic. While support in the upper atmosphere will be somewhat limited for the surface low pressure system, accumulating snow is likely to overspread the DC-to-Philly-to-NYC corridor on Friday night and continue into Saturday morning with a coating to as much as 2-3 inches possible in some areas.
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The main weather story today will be the wind with gusts possible of 40 mph making it feel much colder than the actual air temperatures. In fact, wind chill levels can drop to below-zero at times of the highest wind gusts...not a day to stay outside for long stretches. The powerful NW winds are being generated by a tight pressure gradient between strong low pressure over Nova Scotia and high pressure building across the middle of the nation.
Elsewhere, low pressure will get organized later today over the northwestern Gulf of Mexico. Cold air has penetrated deep into the southern states and this combination will lead to significant snow and ice from Texas to the Carolinas during the next couple of days. That same low pressure will head northeast and likely reach the coastal waters of the southern Mid-Atlantic by mid-day Saturday. It will be a relatively weak system for us likely producing a light snow event from late Friday night into early Saturday on the order of a coating to a couple of inches. High pressure and more cold air returns to the region for the early part of next week.
A bit of good news to wrap up…spring training is only 33 days away.
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This cold and active weather pattern will produce another storm system in the short-term and this one will have a major impact on the southern states from Texas to the Carolinas with significant snow and disruptive ice. Low pressure will organize over the northwestern Gulf of Mexico later today which is much farther to the south compared to the most recent storm system that originated over the central Plains. Cold air has penetrated all the way into the Deep South during the past couple of days setting the stage for this upcoming winter event.
This storm system will push to the northeast on Friday from the Deep South to the coastal waters of the southern Mid-Atlantic by mid-day on Saturday. The surface low will have little support in the upper atmosphere as a “positively-tilted” trough axis will be limited in its generation of upward motion. While snow is likely in the Mid-Atlantic region from late Friday night into early Saturday, it is likely to be an overall light event with accumulations probably limited to the range of a coating to a couple of inches.
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Winds will be a big factor for the next couple of days with Arctic high pressure in control to go along with the continuing below-normal temperatures. Gusts can exceed 30 mph today from a northwesterly direction and potentially reach 40 mph on Thursday. Low pressure will form over the Gulf of Mexico later tomorrow and produce a lot of snow and ice for the southern states from Texas-to-Georgia over the next couple of days. It will head northeast towards the Mid-Atlantic coastal waters by the early part of the weekend and could produce some snow around here from late Friday night into Saturday morning…looking like a light event for us.
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This cold and active weather pattern threatens to produce another storm system later this week that can have an impact from the Deep South to the eastern seaboard. Low pressure will organize over the northwestern Gulf of Mexico later this week...much farther to the south compared to the most recent storm system which originated over the central Plains. As such, there can be an impact in the Deep South and including the potential of accumulating snow from Dallas-to-Little Rock-to-Memphis and a swath of disruptive ice from Texas to the Carolinas.
After that, the low pressure system likely heads towards the eastern seaboard and the exact track will be critical as well as the timing of its intensification along the coast in determining how much impact there can be in the Mid-Atlantic region and Northeast US. A rapid intensification of the surface low along the Mid-Atlantic coastline could mean significant accumulating snow in the DC-to-Philly-to-NYC corridor from late Friday night into Saturday. However, if the system doesn’t intensify significantly until it passes to the north and east of the Mid-Atlantic region - the most likely scenario - then any snow would likely be on the light side.
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The low pressure system that brought significant snow to the region on Monday is now well offshore and a reinforcing Arctic air mass has followed in its wake riding in on strong NW winds. Temperatures will do no better today for afternoon highs than around the 30 degree mark and strong winds of up to 40 mph will produce wind chill values in the single digits. High pressure dominates for the next few days providing us with some sunshine on a daily basis to go along with the below-normal temperatures and then we’ll have to monitor a southern storm system by the weekend to see if it can impact the area with some snowfall.
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