Monsoonal moisture will continue to impact the region today, raising the chance of showers and thunderstorms, and helping to keep temperatures down in reasonable territory. Any shower or thunderstorm can produce heavy rainfall resulting in a localized threat of flash flooding. By the latter part of the week, overall moisture levels will be on the decrease, and temperatures will be on the rise with 100-degree afternoon highs back on the table for Sunday and Monday.
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Numerous ingredients will come together during the next couple of days to raise the possibility of severe thunderstorms and heavy rainfall in the Mid-Atlantic region. In an overall pattern quite similar to a week ago, strong upper-level ridging is currently centered over the Rocky Mountain States, and the outer periphery of this system features northwesterly flow over the Great Lakes. Embedded within this northwesterly flow will be an intensifying upper-level jet streak on Tuesday that’ll drop to the south and east enhancing upper motion in the Mid-Atlantic region. Meanwhile, an upper-level trough of low pressure is currently positioned over the southeastern part of Canada, and it will add fuel to the fire by sending spokes of energy into the northeastern states during the next couple of days. Finally, not to be outdone by its upper-level counterparts, the surface level will get involved as low pressure will deepen over the Delmarva Peninsula on Tuesday and there will be a secondary surface low unfolding over western NY State.
All of these ingredients can result in severe thunderstorm activity during the next couple of days with a focus on Tuesday afternoon and evening and there can be torrential rainfall in portions of the Mid-Atlantic region with 3+ inches on the table. The best chance of severe weather on Tuesday will likely be across the southern Mid-Atlantic (e.g., DC, Delmarva), and the best chance of soaking rainfall will likely be across the northern Mid-Atlantic (e.g., eastern PA, NJ, NYC), but some of these details still have to be worked out.
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The next couple of days will be quite unsettled in the Mid-Atlantic region as an upper-level trough of low pressure over southeastern Canada sends spokes of energy our way. As a result, there will be scattered showers and thunderstorms here on Monday to start the new work week and an even better chance on Tuesday. In fact, some of the thunderstorms on Tuesday can reach strong-to-severe levels and some of the rain can be heavy at times. On Wednesday, low pressure looks to move offshore and there can be lingering showers and storms in the area during the afternoon hours, but the threat of severe weather will be lower than tomorrow.
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The next couple of days will be quite unsettled in the Mid-Atlantic region as an upper-level trough of low pressure over southeastern Canada sends spokes of energy our way. As a result, there will be scattered showers and thunderstorms here on Monday to start the new work week and an even better chance on Tuesday. In fact, some of the thunderstorms on Tuesday can reach strong-to-severe levels and some of the rain can be heavy at times. On Wednesday, low pressure looks to move offshore and there can be lingering showers and storms in the area during the afternoon hours, but the threat of severe weather will be lower than tomorrow.
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The next couple of days will be quite unsettled in the Mid-Atlantic region as an upper-level trough of low pressure over southeastern Canada sends spokes of energy our way. As a result, there will be scattered showers and thunderstorms here on Monday to start the new work week and an even better chance on Tuesday. In fact, some of the thunderstorms on Tuesday can reach strong-to-severe levels and some of the rain can be heavy at times. On Wednesday, low pressure looks to move offshore and there can be lingering showers and storms in the area during the afternoon hours, but the threat of severe weather will be lower than tomorrow.
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The next few days will remain quite comfortable across the Mid-Atlantic region with moderate warmth and humidity levels for this late stage of the month of July...and no extreme heat is in sight. An upper-level trough of low pressure will re-establish itself over the northeastern states during the early part of next week and this could contribute to another strong-to-severe thunderstorm outbreak on Tuesday afternoon/evening in the Mid-Atlantic region and heavy rainfall is a possibility as well.
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The next few days will remain quite comfortable across the Mid-Atlantic region with moderate warmth and humidity levels for this late stage of the month of July...and no extreme heat is in sight. An upper-level trough of low pressure will re-establish itself over the northeastern states during the early part of next week and this could contribute to another strong-to-severe thunderstorm outbreak on Tuesday afternoon/evening in the Mid-Atlantic region and heavy rainfall is a possibility as well.
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The next few days will remain quite comfortable across the Mid-Atlantic region with moderate warmth and humidity levels for this late stage of the month of July...and no extreme heat is in sight. An upper-level trough of low pressure will re-establish itself over the northeastern states during the early part of next week and this could contribute to another strong-to-severe thunderstorm outbreak on Tuesday afternoon/evening in the Mid-Atlantic region and heavy rainfall is a possibility as well.
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Monsoonal moisture will continue to impact the region today, raising the chance of showers and thunderstorms. Any shower or thunderstorm can produce heavy rainfall resulting in a localized threat of flash flooding. By the latter part of the weekend, overall moisture levels will be on the decrease, and temperatures will be on the rise with 100-degree afternoon highs back on the table for Sunday and Monday.
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A cold front pushed off the eastern seaboard late yesterday and its passage ushered in a refreshing air mass to the Mid-Atlantic region. Temperatures and humidity levels will remain in the comfortable zone for the next few days and there will be plenty of sunshine as well. Humidity begins to build up early next week and the chance of showers and thunderstorms will increase as the next frontal system heads in this direction from the Great Lakes.
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