For southeast Florida weather, during the overnight hours, it was generally partly cloudy. Isolated to widely scattered showers moving rapidly westward affected portions of the area. A few other showrs were over the Florida Straits and portions of the Florida Keys and adjacent waters.
Lows were generally around 70 to upper 70’s. Areas further inland had lows in the 60’s, with some areas in western Palm Beach County around 60 to low 60’s. Winds were generally easterly at 10 – 15 mph with gusts to around 20 mph early, but diminished as the night progressed. By late night, winds were mostly light easterly to periods of calm further inland. The easterly winds near the coast helped to keep the temperatures in the upper 70’s with the maritime influence.
During the day, it was sunny to partly sunny with some areas having partly conditions at times. Isolated to widely scattered showers affected portions of the area during the morning. These showers had diminished by late morning. Other showers were developing over the Atlantic and moved ashore from time to time during the afternoon into the evening.
Highs were mostly in the middle 80’s. Some areas near the coast were in the low 80’s. A few locations reached the upper 80’s. Winds were generally east and southeast at 10 – 15 mph. There were some higher gusts mostly earlier in the afternoon.
As temperature and moisture has risen, so has the dewpoint temperatures. Some areas were approaching the 70 degree mark across south Florida. Dewpoint temperatures 70 to low 70’s were approaching the lower east coast areas. This has resulted in being less comfortable conditions as compared in prior days.
For tonight, it will be clear to partly cloudy. There may be isolated to possibly widely scattered showers. Lows will be upper 60’s to middle 70’s. Some areas well inland (especially in Palm Beach County) may see lows in the middle 60’s.
Winds will be east southeast and southeast at 10 – 16 knots. Seas will be 2 – 3 feet. Intracoastal waters and Biscayne Bay will have a moderate chop.
Upper level heights will gradually decline beginning later on Friday as an upper level trough moves into the eastern U.S. This will cause the upper level High to flatten which will help to reduce the subsidence and weaken the cap over the area. This trough will also support a cold front. As the cold front advances eastward, the surface high will shift eastward into the Atlantic allowing the winds to veer more to the southeast and eventually southwest by Saturday.
Some moisture and warmer conditions will move into the area. With higher moisture, there may be a better chance of showers (still rather low).
Dewpoint will increase accordingly and it will become less comfortable. With highs by Saturday in the upper 80’s and dewpoint temperatures into the low and possibly middle 70’s, heat indices may reach low to middle 90’s in some areas. If clouds move in earlier, it may not be as warm.
The above mentioned cold front is forecast to move into north Florida on Saturday morning and move into southeast Florida Saturday evening.
As the front progresses southward, the associated cloudiness and rainfall will be weakening and by the time it gets into southern portion, the band will be much weaker to possibly broken.
As the front moves into the Florida Straits, it will be stalling.
For Friday, it will be partly sunny. There will be isolated to widely scattered showers. Highs will be in the middle to upper 80’s. Lows Friday night will be in the upper 60’s to low 70’s. Some areas well inland (especially in Palm Beach County) may see lows in the middle 60’s.
Winds will be southeast and south southeast at 8 – 14 knots becoming south southeast and south Friday night at 5 – 12 knots. Seas will be around 2 feet to 3 feet. Intracoastal waters and Biscayne Bay will have a light chop.
For Saturday, it will be partly sunny to partly cloudy. There will be widely scattered showers. It will become breezy to windy especially near the coast Saturday night as the front moves through. Highs will be in the middle and upper 80’s. Lows Saturday night will be in the low to middle 60’s well inland to low 70’s near the coastal areas.
Winds will be south southwest and southwest at 7 – 13 knots becoming west at 7 – 13 knots Saturday night. Seas will be Seas will be around 2 feet. After midnight Saturday night, winds become northerly at 13 – 19 knots. Seas will build to 2 – 5 feet. Intracoastal waters and Biscayne will have a light chop.
For Sunday, it will be partly cloudy. There will be isolated to widely scattered showers mainly in the southern portions and coastal areas. It will become breezy to possibly windy especially near the coast. Highs will be around 80 to low 80’s. Some areas may reach the middle 80’s. Lows will be in the upper 60’s to low 70’s. Areas well inland (especially in Palm Beach County) may see lows in the low to middle 60’s.
Winds will be north northeast at 14 – 20 knots with seas of 3 – 6 feet. Intracoastal waters and Biscayne Bay will have a moderate chop to choppy in exposed areas. Sunday night, winds will be east northeast at 17 – 23 knots. Seas will be 4 – 6 feet and occasionally up to 8/9 feet. Intracoastal waters and Biscayne Bay will be choppy to rough in exposed areas. Small craft operators may need to exercise caution for a portion if not all of the areas. Additionally, a small craft advisory may be required for portion of the area.
With increasing northeast winds, the risk of rip currents will increase. There will probably be at least a moderate risk of rip currents to possibly a high risk of rip currents. An update via twitter will be sent Sunday morning with the rip current risk level.
The front will become nearly stationary in the Florida Straits/Cuba. The front will remain near the general area through around the middle of the week.
Drier air will move in behind the front. Current indications are for dewpoint temperatures to fall into the middle 50’s into the 60’s over the area on Sunday. This will make it feel more comfortable and will be noticeable between Saturday and Sunday. However, it will not last long. It will last around couple of days.
The GFS forecast model has been indicating that the moisture/front may backup into the region early in the week leading to possible showers especially in the southern portion.
As it has been mentioned in the last few posts, the pressure gradient between a building high to the north and lower pressures over the Caribbean will be tightening early next week. Winds will respond by increasing to becoming breezy to windy. Seas will increase accordingly. Small craft operators may need to exercise caution or a small craft advisory may be required for portions if not all of the area. Boaters and marine interests should monitor future marine weather forecasts. Additionally, this will once again increase the risk of rip currents. There will probably be at least a moderate risk to possibly high risk of rip currents. Swimmers and beach goers should also monitor future forecasts and heed the advice of lifeguards and beach patrol.
Upper level High will setup near Florida/southeast U.S. coast early next week and will hang around for at least a few days if not more. This will lead to above normal temperatures especially for the lows. This same high will result in above normal temperatures for the eastern U.S. for next week.
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