Articles by Roman Kowch
May 7, 2013
After a long stretch of clear, calm weather for our area, chances for rain will increase in the coming days. A broad high pressure parked offshore in the northern Atlantic will finally lose its grip and allow more unsettled weather to traverse New England. The high sustained a light easterly to southeasterly breeze during the past week, pushing in cool air off the Atlantic and limiting daytime maximum temperatures. This pattern will continue today, before a weak low pressure center to our south brings warmer and moister air. This low will be sluggish, producing occasional showers through this week and keeping skies cloudy. However it will provide a southerly flow that should allow temperatures to rise into the upper 60s°F (19–20°C).
April 26, 2013
A high pressure system moving northeast from the Midwest will reach New England on Saturday, providing clear skies and light winds. The high will remain over our area throughout the weekend and into next week. The slow movement of the high is due to a large Atlantic ridge (i.e. another high) which is temporarily blocking the normal movement of weather systems along the jet stream. The high will therefore stay close to us, keeping skies clear and winds light. These two features will ultimately allow high temperatures to average around 65°F (18°C) or above through at least Monday. By late weekend, the light winds should start bringing air from the southwest, giving a small rise in overall temperatures. Any chances of rain appear quite slim today, despite that some remnants of a dissipating low pressure area over Canada will reach us and bring some clouds. Any clouds today will disappear overnight, and clear skies will rule our region through early next week.
April 12, 2013
A potent storm system over the Midwest will continue traveling toward the Atlantic. The storm is responsible for numerous reports of severe weather across the eastern U.S. over the past two days. Most of these reports involved damaging winds on Wednesday, as a series of squall lines propagated eastward. Not surprisingly, given that tornadoes mostly occur in the spring, several tornadoes were also spotted closer to the Gulf. Since much of the atmospheric instability is confined to the southeastern U.S., we will only see a cool, steady rain today rather than thunderstorms. Some of the cool Canadian air mass will reach us because the approaching storm will actually split into two weaker low pressure areas. As this occurs, winds will partially blow from the north through tonight and keep temperatures near 40°F (4°C) for today. We may even see sleet mix in with the rain if the air above is sufficiently cold.
March 22, 2013
An area of low pressure just offshore will slowly drift away today, allowing for clear skies to overspread our region. The low pressure brought some snow yesterday and slick conditions in areas closer to Cape Cod. Any chances for light snow will occur early this morning. By afternoon and evening, skies should become partly cloudy and winds will increase.
March 8, 2013
A broad storm system offshore will continue moving further into the Atlantic. The storm’s large size, however, will sustain precipitation and strong northerly winds over southeast New England into late afternoon. The light snowfall should end by evening and make the afternoon rush hour less treacherous than that of early morning. The skies will clear overnight as dry air moves in ahead of a high pressure area.
February 22, 2013
Today’s clear skies will transition to a wet and soggy weekend as an area of precipitation over the southeast U.S. spins into a low pressure system. The system will move northeast along the coast and quickly deepen once it moves out over the ocean and passes New Jersey Saturday night. Rain will begin late Saturday afternoon, and should mix with snow after nightfall. Greater Boston could receive around an inch of snow, if a relatively cold period sets up early Sunday. However, western Massachusetts and southern New Hampshire will receive 6–12 inches of snow, since colder temperatures will remain more inland. Winds will strengthen into Sunday across the whole region, but should only be around 20–30 mph.
February 8, 2013
A threatening nor’easter will impact our region today. The storm may have historic consequences, possibly dropping over 2 feet of snow across much of southeast New England and producing white-out conditions late today into tonight. A low pressure center moving northeast along the coast will rapidly intensify as it combines with another low pressure moving east over Pennsylvania and New York. The system is rich with moisture and will drop heavy snowfall across our region into Saturday. Snowfall totals will be around 10-12 inches over Cape Cod, reaching 20-28” over the Greater Boston area. In the heaviest snow bands, we cannot rule out thundersnow either.
January 30, 2013
Unseasonably warm temperatures will arrive in New England today ahead of a large, powerful cold front. Before the front pushes through the area late tonight, heavy rain and even some rumbles of thunder will move in this evening and overnight. At the same time, a rapidly deepening low pressure entering southern Quebec will induce strong winds over our area tonight. Southerly wind gusts near 50 mph are not out of the question, lasting through Thursday morning and slowly diminishing later that day. Further south, along the eastern seaboard toward the Carolinas, some severe thunderstorms will fire ahead of the same front through tonight.
December 11, 2012
Breezy conditions today will allow cool air to push through New England. A low pressure system, responsible for the rainy weather yesterday, will continue moving northeastward through southern Quebec. The same system brought a cold front through our region last night. The front shifted the winds from southerly to northwesterly, transporting much cooler air into our region. This overall pattern will continue through the week, with winds easing up as a high pressure center anchors itself over the eastern U.S. Dry conditions will prevail under the high, and overall temperatures will be at normal December levels. Lighter winds and clear skies will keep the cool air mass firmly in place through Friday. Any unsettled weather should hold off until next weekend, when the high departs into the Atlantic and a new storm emerges in the Midwest.
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November 27, 2012
Below normal temperatures will be common across our area in the coming days. No significant southerly surface winds are expected this week, keeping cool polar air in place. A low pressure just to our southeast will slowly strengthen tonight just offshore. As it does, we could get some spotty precipitation today and into the overnight hours. Given the cold temperatures some snow could fall tonight, before the low departs towards Canada on Wednesday. Following the low a high pressure will slowly build off the Carolina coast and bring clear weather back to New England. The high’s southerly flow looks somewhat weak at this point, hence it will keep cool air over the northeastern U.S. through late week. Wind speeds should also remain fairly calm as the high moves closer. So despite cool temperatures, wind chill readings will not be significant even during nighttime hours.