Our comfortable weather conditions of the past couple of days will disappear as we head through the upcoming weekend with a noticeable rise in humidity levels and temperatures. High pressure will shift to over the western Atlantic over the next 24 hours or so and strengthen as well allowing for a stiffening southwesterly flow of air in the eastern US. With the increase in moisture this weekend, the threat of showers and thunderstorms will increase and the steamier weather and threat of rain will continue early next week.
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One big weather story in the near-term that will likely become a big news story is the heat that will intensify across the Pacific Northwest later this weekend and early next week. As high pressure expands and intensifies over the Pacific Northwest later this weekend, many places including Seattle, Washington will approach or surpass the 100 degree mark for afternoon highs. In fact, Portland, Oregon could actually surpass their all-time high temperature record of 107°F on Sunday afternoon. In the longer-term, another weather story may develop across the tropics. A strong tropical wave has just exited off the west coast of Africa and signs point to a favorable pattern for intensification down the road potentially leading to problems for the Gulf of Mexico/Southeast US by the time we get to the early part of July.
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Nice weather will continue today in the Mid-Atlantic region with high pressure remaining in control and an air mass with comfortable temperatures and humidity levels still firmly in place. It’ll turn warmer and more humid as we head into the weekend and the chance of showers and thunderstorms will return to the area. Elsewhere, a heat wave will intensify later this weekend over the Pacific Northwest where temperatures could actually approach all-time highs in places like Portland, Oregon. Also, a strong tropical wave has just exited off of the west coast of Africa and it is something to keep an eye on and could have an impact on the Gulf of Mexico/Southeast US by early July.
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Spectacular weather takes place for the next couple of days in the Mid-Atlantic region with high pressure back in control and a very comfortable air mass firmly in place. It’ll turn warmer and more humid as we head into the weekend and the chance of showers will return to the area, but no significant rain event is likely through Sunday.
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A cold front is working its way through the region today and it won’t be as warm as it was on Monday and comfortably cool conditions will develop in the overnight. As the front pushes through today, there will be additional showers, maybe a thunderstorm, and some of the rain can be heavy at times. Spectacular weather is coming for Wednesday and Thursday with comfortable temperatures and humidity levels for the early part of the summer season.
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Another very comfortable air mass is headed to the Mid-Atlantic region and it will result in some very nice weather for the mid-week time period; however, we may have to deal with some strong-to-severe thunderstorm activity before we get there. A strong upper-level trough of low pressure is digging southeastward today across the Great Lakes and it is combining with a couple of surface-level cold fronts to produce strong thunderstorms in the Ohio Valley and western Mid-Atlantic. This thunderstorm activity is likely to reach the I-95 corridor by later today or early tonight and some of the storms can reach severe levels with potentially damaging wind gusts and hail. It won’t be as warm on Tuesday as the cold front works its way through the region and there will be a lingering chance of showers and storms. Much more comfortable air will be quite noticeable by tomorrow night with temperatures dropping way down in the 50’s in the overnight and it’ll remain very pleasant on Wednesday and Thursday.
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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. Ahead of the front, the chance of showers and thunderstorms will increase later today and continue tonight and on Tuesday. A comfortable air mass will follow the frontal passage resulting in very nice weather for much of 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 Ocean 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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