High pressure centered over the Southeast US and another one over the western Atlantic will be the main players around here in coming days. One of the outcomes of this squeeze play between high pressure systems will be the heat as temperatures likely climb into the 90’s on each of the next couple of afternoons. Temperatures will stay rather uncomfortable in the overnight hours as well with lows likely bottoming out in the upper 70’s to go along with muggy conditions. The overall pattern will begin to break down early next week as an upper-level trough starts to have an influence across Florida and this will likely act to increase moisture levels and perhaps produce an increasing chance of showers and thunderstorms.
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High pressure over the western Atlantic will impact Florida again today with southwesterly winds at the surface and also in the middle levels of the atmosphere. The southwest winds at the surface will delay the onset of the east coast sea breeze and once it forms, it’ll be inhibited in its movement inland. This boundary zone will act as a focus area for afternoon showers and thunderstorms and some of the storms can produce heavy rainfall. With the expected delay of the sea breeze, temperatures today will be able to climb towards the 90 degree mark for afternoon highs.
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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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High pressure over the western Atlantic will impact Florida again today with southwesterly winds at the surface and aloft. The southwest winds at the surface will delay the onset of the east coast sea breeze and once it forms it’ll be inhibited in its movement inland. This boundary zone will act as a focus area for afternoon showers and thunderstorms and some of the storms can produce heavy rainfall. With the expected delay of the sea breeze today, temperatures will be able to climb towards the 90 degree mark for afternoon highs.
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High moisture levels in the region will aid in the formation of showers and thunderstorms as we close out the work week and there is a threat of locally heavy rainfall. An upper-level trough will push away this weekend and the threat of showers and storms will become somewhat reduced as slightly drier air moves into central Florida.
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The Saharan Air Layer (SAL) 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. This outbreak of dry, dusty air is more widespread than usual and appears to have formed when strong winds from thunderstorms kicked up the dust to an altitude of about 20,000 feet in mid-June over the Sahel region of northern Africa.
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High pressure ridging off the east coast will continue to impact the weather around here resulting in another day with highs in the middle 80’s and the threat of scattered showers and thunderstorms. This threat for rain will increase on Friday and continue this weekend and temperatures will creep up towards the 90 degree mark for highs by early next week.
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High pressure ridging off the east coast will continue to impact the weather around here resulting in warm and humid conditions across central Florida. Temperatures will generally climb to the middle 80’s for the next few days for highs, but then should increase some later this weekend and close in on the 90 degree mark by early next week. While thunderstorms are possible later today, they'll become more widespread later in the week and that increased threat on Friday will last through the upcoming weekend.
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High pressure ridging off the east coast will continue to impact the weather around here for the remainder of the week with a continuation of warm and humid conditions. Temperatures will generally climb to the middle 80’s for the next few days, but then should increase some this weekend and close in on the 90 degree mark by early next week.
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High pressure ridging off the east coast will continue to impact the weather around here for the next few days with a continuation of warm and humid conditions. High temperatures will generally fall in the narrow range of the middle 80’s across central Florida for much of the week and then tend to climb towards 90 degrees over the weekend and during the early part of next week.
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