The big weather story of the next few days will be the arrival of another comfortable air mass preceded by a strong cold frontal passage on Tuesday. While there will be the threat for showers and thunderstorms late today, a better chance will develop tonight and on Tuesday as the cold front pushes in from the northwest. A comfortable air mass will follow the frontal passage resulting in very nice weather for the second half of the week with overnight lows again in the comfortably cool 50’s. Elsewhere, “Claudette” has returned to tropical storm status after weakening into a depression over the weekend. This system will push off the Carolina coastline later today and could strengthen a bit more over the western Atlantic during the next day or two.
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An active weather pattern will grip much of the eastern two-thirds of the nation over the next several days that will include a tropical storm, a severe weather threat from the Midwest-to-Ohio Valley-to-Mid-Atlantic and then a blast of unseasonably cool air for much of the northeastern quadrant of the nation. The tropical wave now pushing over the Gulf of Mexico is likely to maintain a northerly track and reach southern Louisiana by later tonight. After landfall, this tropical system will then move to the northeast and impact the Tennessee Valley and southeastern US with some heavy rainfall later Saturday into Sunday. The remains of the tropical system could then reach the southern Mid-Atlantic later Sunday into Monday with some rainfall and gusty winds. In addition to the tropical activity, severe weather will develop later today across the Midwest/Ohio Valley and some strong-to-severe thunderstorm activity could work its way into the Mid-Atlantic later tonight and Saturday. Looking ahead, the passage of a powerful cold front on Tuesday will usher in another much cooler-than-normal air mass for the northeastern quadrant of the nation and Wednesday and Thursday will be very comfortable days.
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An active weather pattern will grip much of the eastern two-thirds of the nation over the next several days that will include a tropical storm, a severe weather threat from the Upper Midwest-to-Ohio Valley-to-Northeast US and then a blast of unseasonably cool air for much of the northeastern quadrant of the nation. The tropical wave is now pushing over the southern Gulf of Mexico and is likely to maintain a northerly track and reach the northern Gulf coastal region of Louisiana by later Friday night. After landfall, this tropical system will then move to the northeast and there is a chance that it actually strengthens some over land which is somewhat contrary to normal trends with tropical cyclones. In addition to the tropical activity, a severe weather threat will begin later Thursday across the Upper Midwest and will shift east tomorrow to the Ohio Valley and then perhaps into the Mid-Atlantic/Northeast US by later Friday night and Saturday. All of this active weather will be swept eastward on Tuesday with the passage of a powerful cold front that will usher in another much cooler-than-normal air mass for the northeastern quadrant of the nation.
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Today will be another very pleasant weather day in the Mid-Atlantic region with comfortable temperatures and humidity levels to go along with copious amounts of sunshine. It’ll turn warmer on Friday and the chance of showers and thunderstorms will increase on Friday night and Saturday and some of these storms can be on the strong side. Elsewhere, tropical storm development is likely over the Gulf of Mexico during the next day or so and this system could reach the central Gulf coastal region by early Saturday. After landfall, the remains of the tropical storm are likely to turn to the northeast and interact with an approaching upper-level trough from the northwest. There is a chance this tropical system will actually intensify over land as it becomes intertwined with the advancing upper-level trough and it could bring rain to the Mid-Atlantic region on Monday. After the cold front passes through the area, another very comfortable air mass will push in for the middle on next week.
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There have been a couple of named tropical systems so far in the Atlantic Basin, but neither one was of much consequence and had little to no impact on the US mainland. A third tropical wave now drifting over Bay of Campeche and southern Mexico is likely to intensify into at least tropical storm status in coming days as it turns to the north, if so, it would become named “Claudette”. The track of this system is likely to bring it to the central Gulf coastal region during the early part of the upcoming weekend and then its remains are likely to push northeastward into the Tennessee Valley on Sunday and then the Carolinas/Virginia on Monday. There is even a chance that the remains of the tropical system strengthen after moving over land - contrary to normal trends for tropical systems - and it could get intertwined with an approaching cold frontal system to produce rainfall in the Mid-Atlantic region early next week.
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In the wake of Monday night’s frontal passage, a comfortable air mass pushed into the Mid-Atlantic region on Tuesday and it'll stay very pleasant around here for the next couple of days following the passage of a secondary cool front. Temperatures during the next couple of nights will drop well down in the 50’s in most suburban locations and afternoon highs will remain in the comfortable 70’s until Friday. At the same time we’re enjoying comfortable weather conditions in the Northeast US, much of the western US is suffering through some excessive heat as intense upper-level high pressure dominates that part of the nation. For example, Phoenix, AZ may experience high temperatures near the 120 degree mark later in the week and Death Valley, CA could reach 125 degrees. Elsewhere, it looks like the Gulf of Mexico will feature a tropical system by the end of the work week and this system should move northward towards the central Gulf coast by the late weekend. After that, there is a chance that the leftover rains of the tropical system move to the northeast and potentially all the way into the Mid-Atlantic/Northeast US during the early part of next week.
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Strong-to-severe thunderstorms pushed through the Mid-Atlantic region last night along a cold frontal system that has led the way for another comfortable air mass for the middle of June. Hail was reported with many of last night’s storms and some spots received heavy rainfall and lots of cloud-to-ground lightning. In the wake of the frontal passage, the next few days will be quite nice with pleasant days and cool overnights featuring low temperatures down in the 50’s. At the same time we’re enjoying comfortable weather conditions in the Northeast US, much of the western US is suffering through some excessive heat as upper-level high pressure ridging expands and intensifies over that part of the nation. Elsewhere, it looks like the Gulf of Mexico will feature a tropical system by this weekend. Early signs point to a movement towards Louisiana or Texas and then its precipitation shield is likely to turn to the northeast. Whether this tropical system’s leftover rainfall makes it this far north and east next week is still a little too early to call.
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An unstable atmosphere and an approaching frontal system are raising the chances for strong-to-severe thunderstorm activity late today and tonight in the I-95 corridor region from DC-to-Philly-to-NYC. There is already one line of strong storms pushing eastward into central PA and central NY and other lines are likely to develop during this threat time period which could continue until midnight or so. The storms are moving quickly enough to reduce somewhat the chances of torrential rainfall amounts like we experienced last week; however, damaging wind gusts, hail and even isolated tornadoes are severe weather threats with this particular setup all the way from Washington, D.C. to New York City.
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The week will start off with comfortable temperatures in the NYC metro region, but an approaching cold front will result in scattered showers this morning and mid-day and possible PM thunderstorms...some of the storms can be on the strong side. Another cold front will pass through at mid-week ushering in more comfortable air for the northeastern part of the nation. At the same time the Northeast US/Great Lakes enjoys comfortable weather conditions, much of the western US will experience excessive heat as upper-level high pressure ridging expands and intensifies over that part of the nation. Elsewhere, it looks like the Gulf of Mexico will feature a tropical system by late this week or early this weekend and it may ultimately head towards Louisiana.
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A cold front grudgingly pushed through the region yesterday and its passage has ushered in noticeably cooler air to end the work week. This frontal passage, however, has not ended our rain threat completely as it has stalled-out just to the south and low pressure has formed along its boundary zone generating additional showers for the Mid-Atlantic region. The weekend will start off with pretty decent weather as high pressure returns, but the next cold front should generate some shower and thunderstorm activity for late Sunday and Sunday night. Looking ahead, a rather refreshing and cooler-than-normal air mass will push into the Northeast US by the middle of next week at the same time the Southwest US experiences some extreme heat. This pattern change will be the result of a vigorous upper-level low that will drop southeastward from Canada into the Northeast US at the same time strong high pressure ridging builds into the southwestern states. In addition, there is likely to be the first tropical activity of the young Atlantic Basin season by later next over the Gulf of Mexico.
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