It’ll be another day featuring high heat and humidity in the Mid-Atlantic region with weak high pressure in control of the weather. Temperatures later today should peak in the middle 90’s and humidity levels will be very uncomfortable with dew points in the 70’s. While there can be an afternoon or evening shower and thunderstorm, a much better chance for rain comes in the Wednesday-to-Saturday time period and some of the mid and late week rain can be heavy at times. The combination of the tropical moisture associated with Beryl’s remains and a stalling out frontal system near the coast will enhance chances here for some heavy rainfall beginning later tomorrow and likely continuing right into the upcoming weekend. The remnants of Beryl are currently centered over southwestern Arkansas and they’ll move northeast rapidly reaching the Ohio Valley by later tomorrow and this positioning will add to the instability along the eastern seaboard at mid-week.
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Weak high pressure in the eastern states will slide east during the next couple of days and it’ll remain quite hot and humid around here with a small shot at PM showers and thunderstorms. Temperatures today and Tuesday should peak in the lower 90’s and it’ll stay very warm on Wednesday as well. By mid-week, the remnants of Hurricane Beryl will pass by to our northwest and it’ll combine with a frontal system to enhance the chance for heavy rainfall around here late Wednesday and Thursday and potentially into Friday and Saturday as well.
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High pressure will remain east of here through the weekend and a couple of frontal systems will generate some instability in the atmosphere. As a result, it’ll remain hot and sticky for the next couple of days and there is the threat for showers and thunderstorms both today and on Saturday. Any thunderstorm that forms can be strong and produce locally heavy rainfall. It quiets down a bit for Sunday and Monday and overall rain chances will diminish somewhat.
Elsewhere, Hurricane Beryl is now a category 2 storm and it will cross the Yucatan Peninsula today. The movement over land will likely weaken Beryl to tropical storm status and then it could strengthen this weekend -even back to hurricane levels - as it pushes over the warm waters of the southwestern Gulf of Mexico. A turn to the NW late this weekend could bring landfall on Sunday night/early Monday to the southern part of Texas.
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High pressure pushes offshore today and this re-positioning will allow hotter and more humid air to flow northeastward into the Mid-Atlantic region for the Independence Day holiday. The atmosphere becomes more unstable as well with the arrival of a surface trough of low pressure raising the chance for afternoon or evening showers and thunderstorms. Any thunderstorm that forms later today or tonight can be strong and produce locally heavy rainfall. Hot and sticky weather will continue on Friday and Saturday as will the threat of showers and thunderstorms; however, much of the time will be rain-free.
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High pressure stays in control of the weather around here for another day, but the overall pattern becomes more unsettled on Thursday as the high shifts offshore and an upper-level trough starts to have an influence in this area. Today will feature plenty of sunshine, still moderate humidity levels and warm conditions with afternoon highs in the middle 80’s. It turns hotter and more humid for the 4th of July Independence Day holiday and stays hot and sticky through the upcoming weekend. In addition, the atmosphere will become more unstable on Thursday...enough so to increase the chance for afternoon and evening showers and thunderstorms and any thunderstorm that forms can be strong and produce locally heavy rainfall. The threat of showers and thunderstorms will continue on Friday and Saturday as well to go along with the very warm and humid conditions as a cool front slowly advances in this direction from our northwest.
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High pressure stays in control into mid-week at which time it’ll shift offshore and open the door for hotter and more humid air to flow into the Mid-Atlantic region. The July 4th holiday on Thursday will feature very warm and humid conditions and the chance of PM showers and thunderstorms. The threat of showers and thunderstorms will continue on Friday and Saturday as well to go along with the very warm and humid conditions as a cool front slowly advances in this direction from our northwest. Elsewhere, Hurricane Beryl is now a category 5 storm over the Caribbean Sea and headed to Jamaica on Wednesday and the Yucatan Peninsula by the end of the week.
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Following the overnight passage of a surface cool front, the short work week will start off quite comfortable with low humidity values and a northerly breeze. High pressure stays in control into mid-week at which time it’ll shift offshore and open the door for hotter and more humid air to flow in this direction. The July 4th holiday will feature very warm and humid conditions and the chance of showers and thunderstorms. The threat of showers and storms will continue on Friday and Saturday as well along with very warm and humid conditions featuring an approaching cool front from northwest of here.
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A surface cool front pushed off the east coast early yesterday paving the way for a comfortable air mass with moderate humidity levels that will stick around through the day today. Overall humidity levels will begin to climb later tonight and it’ll be a noticeable and uncomfortable factor on both weekend days. We’ll also have to deal with the chance of showers and thunderstorms on both weekend days as a couple different frontal systems impact the region.
A warm front will advance from the south on Saturday and this can produce showers and thunderstorms any time from late tonight through tomorrow night...any thunderstorm can reach strong-to-severe levels. A cool front will then drop to the south and east towards our area late in the weekend and it too can generate showers and thunderstorms in the area...any thunderstorm late Sunday can reach strong-to-severe levels. Following the passage of the late weekend cool frontal system, another comfortable air mass will push into the Mid-Atlantic for the early part of next week.
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A surface cool front is pushing off the coast this morning and its passage has cleansed the atmosphere of the high heat and humidity from yesterday and it’ll lead to improving conditions all along the I-95 corridor. Clouds will give way to sun and overall humidity levels will come down today with the onset of a northwesterly flow of air in the lower levels of the atmosphere. It’ll stay rather comfortable through tomorrow and then the humidity builds up again late Friday night and Saturday ahead of the next cool frontal system. That front can cause another round of showers and thunderstorms in the Mid-Atlantic region this weekend and it’s passage will be followed by another comfortable air mass for the early part of next week.
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Several ingredients will come together late today and tonight to raise the chance of severe thunderstorm activity in the Mid-Atlantic region. The combination of an approaching surface cool front, higher heat and humidity, a strong low-level jet, wind shear, and an upper-level trough will result in showers and thunderstorms from later today into tonight and any thunderstorm can reach severe levels. The severe weather threats include damaging wind gusts, heavy rainfall, and large hail. In addition, given the expected formation of strong wind shear, there will also be the potential of isolated tornadoes.
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