It turns cooler for the second half of the week following the passage of a cold frontal system that will actually stall out later today in close proximity to the DC metro region. Tropical Storm Debby is now out over the open waters of the SW Atlantic just off the coastline of South Carolina and it could re-intensify later today back into category 1 hurricane status. Whether or not Debby returns to hurricane status, it will continue to produce tremendous rainfall amounts in the Carolinas during the next 24 hours or so and likely makes a second landfall by early Thursday morning.
After that, the tropical storm is going to be kicked out to the north and move into the Mid-Atlantic region on Friday…likely just to the west of I-95. This path will give us the chance here for some heavy rainfall, gusty winds, and even isolated tornadoes from later Thursday through Friday night with weather conditions likely to improve on Saturday. Looking ahead, the weather looks quite nice and comfortable for Sunday and Monday following the passage of the tropical system.
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Tropical Storm Debby is about to move back out over the open waters of the Southwest Atlantic Ocean…just off the coast of South Carolina. This system will re-intensify some during the next 24 hours or so with a chance of getting back to category 1 hurricane status and then it’ll likely make a second landfall early Thursday in South Carolina. Whether or not Debby returns to hurricane status, there will be extreme rainfall amounts in portions of the Southeast US during the next couple of days centered on the state of South Carolina.
Farther north, much of the Mid-Atlantic region will experience very heavy rainfall and severe thunderstorms from later today into early tomorrow due to a combination of tropical moisture feeding northward from Tropical Storm Debby and an incoming strong cold frontal system. The remnants of Tropical Storm Debby will finally get kicked to north late in the week with heavy rainfall and potentially even tornadoes a threat in the entire Mid-Atlantic region on Friday/Friday night.
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Despite the fact that the center of Tropical Storm Debby will likely not move to the Mid-Atlantic region until the end of the week, its influence around here will actually begin late today and tonight. The combination of an increasingly tropical air mass and an incoming cold frontal system will result in scattered late day and nighttime showers and thunderstorms. Some of the rain can be heavy at times and flash flooding may become a concern during the overnight hours; especially, across northeastern Maryland. It turns cooler for the second half of the week following the passage of the cold frontal system which will actually stall out in our general vicinity.
Tropical Storm Debby is now near the Georgia/South Carolina coastal border region and it will meander to a position just off the South Carolina coast by late today and tonight. Some re-intensification is possible on Wednesday while TS Debby is out over the open waters of the southwestern Atlantic and then a second landfall is likely on Thursday somewhere along the South Carolina coast. After that, the tropical storm is probably going to be kicked out to the north and move into the Mid-Atlantic region which likely results in additional heavy rainfall around here from later Thursday into early Saturday.
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Debby made landfall this morning in the Big Bend region of Florida’s Gulf coast as a category 1 hurricane. While Debby has weakened to “tropical storm” status, it will likely produce tremendous rainfall amounts in portions of the Southeast US during the next few days as its northward progression is stymied by high pressure ridging building to its north. The remnants of Debby will then push off the Georgia/South Carolina coastline by mid-week and it can undergo some re-intensification over the open waters of the southwestern Atlantic. In fact, there is the chance that Debby returns to category 1 hurricane status depending on its length of time over the southwestern Atlantic Ocean. By Wednesday night or early Thursday, Debby will likely make a second landfall perhaps over the northeastern coastline of South Carolina.
Farther north, tropical moisture associated with Debby can enhance the threat for heavy rainfall in the Mid-Atlantic region as soon as late tomorrow as it interacts with an incoming cold frontal system. Following the frontal passage on Wednesday, it turns much cooler in the Mid-Atlantic region for the second half of the week with afternoon highs generally confined to the 70’s in places like DC, Philly and New York City. There will also be a continuing threat of tropical rainfall later this week as the remnants of Debby finally kick out of the SE US by the end of the week and push to the north…several inches of rain are on the table in the Mid-Atlantic between now and the end of the upcoming weekend.
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High pressure will build across the region over the next couple of days and all eyes will be on what is now a category 1 hurricane named “Debby” which is about to make landfall in the Big Bend region of Florida’s Gulf coast. Tropical moisture associated with Debby can enhance the chance of heavy rain around here as early as late tomorrow and tomorrow night and the threat of tropical rains will continue here for much of the second half of the week due to the slow-movement of this system. The week starts off with very warm and humid conditions today and Tuesday, but then it’ll turn much cooler on Wednesday and Thursday with the interaction of what remains of Hurricane Debby.
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An intensifying upper-level trough of low pressure will slide towards the Mid-Atlantic region from later today into tonight and it’ll actually play a role in the weather around here right through the upcoming weekend. Specifically, this system will enhance upward motion in the area raising the chance of showers and thunderstorms - possibly strong-to-severe - and that threat of rain will continue on each weekend day. In addition, a southwesterly flow of air out ahead of this incoming trough will push very moist air into the area suggesting any shower or thunderstorm that does form during the next few days can produce some very heavy rainfall amounts in an impacted location.
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An upper-level ridge builds into the Mid-Atlantic region for the next couple of days and this will lead to hotter conditions with afternoon highs well up in the 90’s in most spots along the I-95 corridor. A few shortwaves will keep it unsettled around here right through the upcoming weekend with rounds of showers and thunderstorms; primarily, focused on the afternoon and evening hours. Any thunderstorm that forms during the next few days can produce heavy rainfall amounts given the high amounts of available moisture and the likely slow-moving nature of the storm cells. Elsewhere, the tropical scene is alive and well in the Atlantic Basin as we flip the calendar to August and there could be an intensifying tropical system to deal with over the eastern Gulf of Mexico by early next week.
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Low pressure will pass by to our north today and there can be isolated showers and thunderstorms during the afternoon, but much of today will be rain-free. An upper-level ridge of high pressure is building into the region and this will result in hotter weather conditions beginning today and continuing through Friday with afternoon highs likely well up in the 90’s on each day. The overall pattern remains unsettled as well on Thursday and Friday with a chance of PM showers and thunderstorms and warm, humid and unsettled conditions are likely this weekend.
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A couple of shortwaves will rotate through the region later today and tonight raising the chance of PM showers and thunderstorms…some of the storms can be strong and produce heavy rainfall amounts. There should be plenty of cloud cover around as well today which should limit high temperatures this afternoon to the middle or upper 80’s in the DC metro region. Upper-level high pressure ridging to our southwest will take control for the second half of the week and it’ll remain somewhat unsettled. As such, it’ll turn hotter for Wednesday, Thursday and Friday with afternoon high temperatures likely well up in the 90’s and there can be scattered showers and thunderstorms.
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The weather was rather tranquil this weekend with dry and quite warm conditions, but it turns unsettled again by tonight and it’ll remain so for much of the week. Low pressure is spinning over New England this morning and there is a chance for an isolated shower that makes it all the way down into the southern Mid-Atlantic region. Another low pressure system will push to our north from tomorrow into Wednesday and it will raise the chance of additional showers and thunderstorms around here. Temperatures will be high this week with many days featuring highs in the lower or middle 90’s.
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