As a cold front swings through the region on Wednesday, two very different air masses will collide. The drier air from the northern Plains will meet the steamy air coming from the Southeast into the mid-Atlantic. The merge of dry air and very moist air will create favorable conditions for thunderstorms, some of which may be severe.
The main threats with these storms will be torrential downpours, damaging wind gusts in excess of 60 mph and even some hail. -SS
Flooding downpours will return to the Northeast on Monday, targeting areas just hit by Andrea.
Numerous showers and thunderstorms will move into the interior Northeast by Monday morning before advancing toward the coast into the evening.
The wet weather is in response to an advancing storm fueled by humid air. Andrea shattered June rainfall records late last week across southern New England. This will make the region extremely vulnerable to flooding on Monday as downpours return. Numerous downpours will extend into the region by the evening commute and can quickly flood small streams and overtake storm drains in the region. Ponding on roadways will be widespread in the region, particularly in urban areas. Don’t drive through water covered roads out there! Stay safe! -SS
A widespread area from the northeast to the mid-atlantic should be on the lookout for strong to potentially severe storms on Sunday. Damaging winds and flooding downpours are the main threats from the strongest thunderstorms, which will generally be confined to the afternoon and evening hours. If any tornado touches down, it would be an isolated event.
As the weekend comes to an end, so will the threat for severe weather across the Northeast. Showers and less-intense thunderstorms will linger along the I-95 corridor on Monday as cooler and less humid air moves in behind the storms. -SS
The same storm system responsible for producing violent and deadly thunderstorms in Oklahoma recently will reach the northeast for Thursday. The nature of the storms will change somewhat from producing tornadoes to more of a straight-line wind gust, hail and flash flooding event. However, there is a chance that a couple of the strongest thunderstorms will produce a brief tornado.
The risk for damaging and dangerous thunderstorms is forecast to extend from eastern Virginia to eastern New York state and portions of New England. Much of this area will be in a sea of warm, humid air as a cool front providing a focusing point for the storms arrives.Only the immediate coast of southern and eastern New England would be spared the worst of the gusty storms, due to a flow of cool air off the ocean. People should be prepared for travel problems, sporadic power outages, frequent lightning strikes and urban flooding Thursday afternoon and evening. -SS
The Memorial Day weekend will begin cool, windy and rainy in New England. The storm system responsible for severe weather and deadly tornadoes over the Plains earlier this week will give birth to a new storm over the Northeast as the week draws to a close and the holiday weekend begins.
The event will start as locally severe thunderstorms Wednesday evening into Thursday evening spreading slowly from the Appalachians to the East Coast. As the storm strengthens, it will cause winds to kick up and will make a pocket of cool air in the region.
Friday night into Saturday could be a flat-out nasty way to start the summer season with a driving wind, rain and temperatures in the 50s and lower 60s in many locations. It might be crazy to think, but it is not entirely out of the question that it gets cold enough for the highest elevations of the Northeast, especially the Adirondacks, Green and White mountains to have wet snowflakes mixing in during the first part of the weekend.
The storm will squeeze out a great deal of moisture from the atmosphere, while drawing additional moisture in from the Atlantic Ocean. The period from Thursday to Sunday bring 4 or more inches of rain to some locations with isolated incidents of flash and urban flooding.
The storm will slowly spin off to the northeast during the second half of the weekend with improving weather conditions and rebounding temperatures. However, portions of New England may hold on to clouds, spotty rain and drizzle through Sunday and possibly into Monday morning-SS
There is the potential for locally gusty thunderstorms to affect portions of Ohio, Pennsylvania, West Virginia, Maryland, Virginia and upstate New York Friday and Friday night and then areas farther east on Saturday.
The storms will bring a risk of damaging wind gusts, hail, blinding downpours and flash flooding to a few locations. A disturbance will track east-northeastward from the Midwest, along a slowly advancing cool front. The disturbance will raise the intensity of thunderstorms along the frontal zone.
During Saturday, the risk of locally damaging thunderstorms will shift to part of the I-95 corridor from Raleigh, N.C., to Washington, D.C., Philadelphia and New York City. In areas that have received heavy rain recently, there is an elevated risk of flash and small stream flooding. Stay safe and Happy mother’s Day! -SS
Bands of heavy rain and thunderstorms will spiral around a slow-moving, land-based storm over the mid-Atlantic.
It is the same storm which brought record May snowfall to parts of the Plains last week and flooding over the past weekend to portions of the Midwest and South.
The rain bands will shift around with time and breaks of sunshine are possible in between. The storm can produce a couple of inches of rain locally over a several-hour period, which is more than enough to cause flooding problems and travel delays. This was the case around New York City on Wednesday, where over three inches of rain fell in a relatively short amount of time.
-SS
This is the incoming line of storms. We still have some time before it arrives. It’s a good looking set of storms! There is currently a tornado warning for the Binghamton, NY area, so it is capable of spawning some nasty storms. I’ll post again as it gets closer.
Lets hope they got this guy in Boston! Stay strong! -SS
The storms and downpours are expected to increase in strength due to the building warmth of the afternoon and then remain strong into the evening.
Spotty showers will occur ahead of the line of storms and downpours during the day Friday and Friday evening. A prevailing cool wedge of air and/or clouds may limit the intensity of the storms over central and eastern New England.
Some locations can be hit by more than just a downpour and some lightning and thunder. A few places can have a severe thunderstorm that brings strong winds, torrential downpours and hail. As a result, there is the potential for downed trees, power outages and flash flooding in the vicinity of the storms.
The greatest chance of severe weather stretches from part of southeastern Pennsylvania to coastal South Carolina from late Friday afternoon into the evening.
The storms are the remnants of a squall line that affected the Central states with severe thunderstorms and flooding during the middle of the week.
It will not be until the evening before they reach most places along the middle and southern Atlantic coast and generally not until the overnight and early Saturday morning hours before they reach the east coast of New England.
There is the potential for 1-2 inches of rain along a large part of the Atlantic Seaboard later Friday and Friday night. -SS
A cold front bringing severe weather to the Midwest and the Mississippi Valley Thursday will reach the East on Friday producing rain, and locally gusty thunderstorms.
While the intensity of the thunderstorms will depend to some extent on the timing, and on how warm locations become during the day. Most locations from Florida to Maine will get a period of drenching rain. Areas most likely to experience localized strong to severe thunderstorms will be generally near and south of the Mason-Dixon line.
Some locations can be hit by more than just a downpour and some lightning and thunder. A few places can have a severe thunderstorm that brings strong winds, torrential downpours and hail. As a result, there is the potential for downed trees, power outages and flash flooding in the vicinity of the storms.
The storms will be the remnants of a squall line affecting the Central states today into tonight. It will not be until the overnight and early Saturday morning hours before they reach the east coast of New England.
There is the potential for 1-2 inches of rain along a large part of the Atlantic Seaboard. Much cooler and drier air will sweep in over much of the Eastern states this weekend. Wet snowflakes could even mix in over the highest elevations of northern Pennsylvania and upstate New York Saturday. -SS
steviestorms 