Strong high pressure will build into the eastern US early this week and it should result in a quiet week with moderately cold and dry conditions for much of the time. Temperatures should climb well into the 40’s for highs each of the next couple of days. There are some signs for storm development near the east coast this weekend, but it’s too early for any kind of certainty and, with no Arctic air in place, it would likely be a battle between snow and rain.
Read More
A soaking rain event is on the way for the first part of the weekend. Strong high pressure has pushed off the east coast and this will open the door for moisture to head this way from the Mississippi and Ohio Valleys. A strong upper-level wave of energy will help to generate surface low pressure over the Ohio Valley later today and then a second system will form nearby on Saturday. This second system will become the focus area for significant rainfall and heavy rain is possible here from late tonight into tomorrow morning. A thunderstorm is also possible during this soaking rain event. On Sunday, some sunshine will return to the Mid-Atlantic region, but it'll be rather chilly with strong NW winds.
Read More
It could be worse….it could be snow although many might prefer that this time of year. A significant rain event is likely for the DC-to-Philly-to-NYC corridor in the Friday night/Saturday time period as a strong wave of energy moves into the Ohio Valley by the early part of the weekend. A wave of low pressure will initially form over the Ohio Valley by later tomorrow and then a secondary system will form near the Mid-Atlantic coastline on Saturday. This secondary system will become the main player and it is likely to result in some soaking rainfall for DC, Philly, NYC and Boston. On the heels of the storm, windy and cold conditions will develop on Sunday and there can be some snow shower activity in the Mid-Atlantic region.
Read More
Strong high pressure overhead will push off the coastline by early tomorrow and this will open the door for moisture to head this way from the Mississippi Valley. A strong upper-level wave of energy will move eastward from the middle of the country and help to generate low pressure over the Ohio Valley on Friday morning. This initial low will actually give way to a secondary low that will form right over the Delmarva Peninsula on Saturday morning and rain can become heavy at times from late Friday night into Saturday morning. It is likely to be cold enough for snow on Saturday only across interior and higher elevation locations of the Mid-Atlantic and NE US. Following the storm, it’ll become windy on Sunday as another cold air mass works its way into the Mid-Atlantic region.
Read More
Strong high pressure centered to our west will continue to dominate the weather around here right into the end of the work week. At that time, attention will turn to a strong wave of energy in the upper part of the atmosphere which will drop into the Ohio Valley by the early part of the weekend and it’ll play an important role in the likelihood of rain in the DC metro region and some of it may become heavy at times. Initially, a wave of low pressure at the surface will push into the Ohio Valley, but ultimately, a secondary system should form and become the main system.
Read More
A strong wave of energy in the upper part of the atmosphere will drop into the Ohio Valley by the early part of the weekend and it’ll play an important role in the likelihood of rain and snow in the Mid-Atlantic/NE US. Initially, a wave of low pressure at the surface will push into the Ohio Valley, but ultimately, a secondary system should form near the Mid-Atlantic coastline. Odds currently favor rain in the I-95 corridor from DC-to-Philly-to-NYC, but a small change in the positioning of the upper level low to the south and east could result in a slightly colder solution for the big cities.
Read More
Strong high pressure centered to our west will settle over the region on Wednesday and Thursday. This high will stay in control generating cold and dry weather conditions around here for the remainder of the work week. Low pressure will approach from the southwest on Saturday presenting us with another shot at a cold rain event or perhaps a combination of rain and snow.
Read More
Strong high pressure will build into the eastern US early this week and it should result in cold, dry weather for much of the time. Highs over the next couple of days will be confined to the 30's and lows late each night could drop into the upper teens. Low pressure will approach from the southwest this coming weekend presenting the next chance of rain and/or snow.
Read More
Dew point temperatures have plunged in the last 24 hours as a cold and very dry Arctic air mass takes hold in the Mid-Atlantic region and this will set the stage for a wintry mess on Saturday to include snow, sleet, freezing rain and some accumulations. This Arctic air mass is being anchored by strong high pressure building into the southeastern part of Canada and it will be very reluctant to give up its ground on Saturday as precipitation moves in from the Ohio Valley. As a result, temperatures will struggle to climb above freezing on Saturday; especially, in the northern and western suburbs along the DC-to-Philly-to-NYC corridor and this will likely result in an extended period of frozen precipitation.
Read More
Strong high pressure will build over southeastern Canada today and temperatures here will struggle to reach the middle 30’s. Winds will continue to be brisk gusting up to 30 mph or so, but they won’t be as strong as yesterday. Clouds will thicken up in the overnight hours and precipitation will head this way early tomorrow from the Ohio Valley. Given the cold and very dry air mass in place on Saturday morning, the initial batch of precipitation is quite likely to begin as snow and/or sleet in the early-to-mid-morning and there can be accumulations of a coating to an inch or so. During the afternoon, it'll turn somewhat milder in the upper atmosphere, but the low-level cold, dry and dense air mass will be reluctant to give up its ground. As a result, surface temperatures will struggle to climb above the freezing mark for much of the day; especially, in suburban areas to the north and west and this can lead to some icing problems on untreated surfaces. By tomorrow night, surface temperatures should climb above freezing in the immediate DC metro region, but some freezing can still occur in areas to the north and west. Another cold, windy day is in store for the area on Sunday and the new work week will begin with quite cold conditions.
Read More
