UPDATED: SEPT 21, 2026 — Wave Rewind: Last week a swell mix picked up Thursday, some punchy lines out there. Died out pretty quickly but there were some cleaner leftovers on Friday.
LOCAL SURFCAST:
A disturbance off the southeast coast is lifting north right now and will interact with a frontal boundary, quickly strengthening off the mid Atlantic. This will shove a cold font southward toward Florida, and create a large fetch down the eastern seaboard. This low will blow up into a strong nor'easter in our swell window and send a large, long period swell down. I expect a good shot of large NE long period swell to make it down through all of the Palm Beaches starting Friday. The low may be sub-tropical for a short time and get named, but the impacts will be the same.
Some changes since my last update: The low now looks like it will hook back toward New England instead of staying off Nova Scotia so that means the swell will get cut off abruptly Monday, leaving us with about 3 or 4 days of swell.
Local winds have improved some. I still expect Friday early to be side/offshore before turning onshore and picking up. Some models hinting at wind clocking back around offshore for Saturday morning also. The wind doesn't look quite as strong now when it turns back onshore Saturday, and also Sunday looks lighter, although still onshore.
Monday the wind dies as well as the swell but there should be some fun, clean leftovers. The swell will peak Friday and Saturday, then fade some Sunday, then smaller leftovers Monday.
It'll be interesting to see where are sandbars are and how much sand will move around from the swell to bring us into our wave season!
Daily surf forecast for the Palm Beaches and Treasure Coast:
WEDNESDAY23: Flat.
THURSDAY24: Flat but possibly some small longer period energy making it down late in the day on the Treasure Coast. Wind NE 10kts.
FRIDAY25: Building longer period NE swell. Size is chest/shoulder+ with some overhead sets at the right spots. Cleaner conditions in the morning with side/offshore then the wind will get on it and make it choppy and drifty in the afternoon.
SATURDAY26: Chest-Head+ with some overhead sets of long period NE swell, thick and powerful. POSSIBLY cleaner in the morning but then wind will get on it through the afternoon. Maybe not too crazy though. Wind NE 10-15kts.
SUNDAY27: Swell eases some, but still pretty solid chest-shoulder-head high sets in the morning, fading some through the day. Wind doesn't look too bad now, much lighter and possibly off/sideshore in the morning. Wind NE 5-10kts.
MONDAY28: Fading swell but cleaning up as winds die down. Waist-chest. Wind light and variable.
TUESDAY29: Mini leftovers if anything.
LONG RANGE FORECAST: This swell may get us into October, then there are hints of another front with a good NE fetch starting up around the 7th so the second week of October could have more swell. Front will then start to become more numerous so it looks like our season will be getting going here with winter not far away now!
Tropics outlook: The favored area for end of September and October so we will need to watch for stuff that may pop up in the gulf and the nearshore Atlantic waters to round out the season. I think eventually there will be a last gasp pulse of activity in the gulf and/or the Bahamas to Bermuda area to end the season. It'll probably be more of the home grown-type activity in the gulf, or near the Bahamas as fronts come down and stall at the end of September and in October. El nino along with Saharan dust really did its thing on the season this year. The good news is we should make up for it over the winter where it will be much more active. Storm after storm in the heart of winter will keep waves going all season. It just may have a lot of VAS chop conditions that go with it too, but there will be clean-up times. Stay tuned.
Tides:
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