An expansive area of moisture currently exists across the Deep South anchored by low pressure over Georgia and it is part of the reason there is patchy, dense fog in the region this morning. This low pressure system continues to produce a large area of showers over the southern states and some of this rainfall is heavy. The low will generally move slowly to the northeast over the next couple of days and it could actually find itself over the warm waters of the western Atlantic by later in the week. Once over water, there is a chance this low pressure system could intensify enough to become a "named" tropical system, but regardless of development, the low could produce some heavy rainfall at week’s end in coastal sections of the Mid-Atlantic. After that, the system is likely to ride up along the east coast of New England and an impressive upper-level trough will form in the eastern US continuing the active, wet weather pattern into the first half of next week.
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A summer-like week is in store for northern Alabama with very warm, humid conditions and high temperatures generally within the 89-92 degree range. In addition, numerous boundaries will result in additional opportunities for showers and thunderstorms and any storm that forms can produce heavy rainfall given the high humidity levels. A storm over the Deep South will ride up along the eastern seaboard later in the week.
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A summer-like week is in store for northern Alabama with very warm, humid conditions and high temperatures generally within the 89-93 degree range. In addition, numerous boundaries will result in many opportunities for showers and thunderstorms and any storm that forms can produce heavy rainfall given the high humidity levels. Later in the week, a storm will intensify over the Deep South and this system may enhance chances for showers and thunderstorms resulting in some heavy rainfall for the region.
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An upper-level low that has been spinning over the Northeast US in recent days will shift off the coast today and high pressure ridging will intensify over the Northern Plains. At the same time, low pressure will intensify across the Deep South and this system will keep us unsettled for the next few days with additional chances for showers and thunderstorms.
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An upper-level low will spin around new England over the next couple of days as an upper-level ridge pattern becomes reinforced over the Plains. Multiple disturbances will impact our region with numerous chances for showers and thunderstorms this week including later this afternoon and evening. Despite lots of clouds, temperatures should be able to climb to the 90 degree mark for afternoon highs.
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An upper-level low will spin around new England over the next couple of days as an upper-level ridge pattern becomes reinforced over the Plains. Multiple disturbances will impact our region with numerous chances for showers and thunderstorms this week including later this afternoon and evening. Despite lots of clouds, temperatures should be able to climb to the 90 degree mark for afternoon highs.
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A high pressure system will build into the Southeast US today and a series of disturbances will lift northeast into the area over the next few days from the Gulf region. This pattern will keep it unsettled around here for the next several days with a daily threat of showers and thunderstorms and the highest probability comes during the PM hours. High temperatures over the next few days will be in the mid-to-upper 80’s and overnight lows around 70 degrees.
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A slow-moving and weakening cool front has moved into the vicinity and it’ll help to keep it unsettled around here for the next several days. The threat for showers and thunderstorms will continue each day through the early part of next week with the highest probability coming during the PM hours. Strong high pressure centered over the Southeast US in coming days will be the main player as far north as the Tennessee Valley.
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A significant disturbance will approach the region today and it’ll enhance the chances for PM showers and thunderstorms. Some cloud cover today and precipitation could keep high temperatures confined to the middle 80’s for afternoon highs. Temperatures will creep us as we progress towards the weekend and there will be a continuing chance for PM showers and thunderstorms.
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An unusually large and intense outbreak of dry, dusty air from northern Africa has crossed the Atlantic Ocean and is now turning skies brownish in the Caribbean Sea. There is a possibility that some of this dusty air mass makes it all the way into the Ohio Valley and Mid-Atlantic later this weekend after first moving over the southern US. This layer of dust is commonly referred to as the Saharan Air Layer (SAL) which is a mass of very dry, dusty air that forms over the Sahara Desert in northern Africa during the late spring, summer, and early fall and it can move westward over the tropical North Atlantic on a regular basis during the Atlantic Basin tropical season. SAL activity usually ramps up in mid-June and peaks in mid-August and sometimes the individual outbreaks can cover vast portions of the Atlantic Ocean and reach as far west as the central US and Central America.
The SAL has unique properties of dry air, strong winds and warmth that can have a significant inhibiting effect on the formation and/or intensification of Atlantic Basin tropical systems - at least on a temporary basis. In addition to its potential inhibiting effect on tropical activity in the Atlantic Basin, dusty air masses that travel over the Atlantic Ocean from Africa can actually have long term impacts on beaches in the Caribbean and soils in the Amazon. This particular outbreak of dry, dusty air is more widespread than usual - perhaps one of the most massive in several decades - and it likely formed during mid-June when strong winds from thunderstorms kicked up dust to an altitude of about 20,000 feet or so over the Sahel region of northern Africa.
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