Captain's Log — May 12, 2026

A weak frontal boundary slid into the northern Gulf yesterday, slackening the typical spring southeast breezes. This morning we’re waking up to light variable winds — the calmest stretch of conditions the Keys have seen in weeks. Dry air is lingering overhead, though a plume of frontal moisture is expected to slide over today, bumping shower chances into the “possible but not likely to ruin your day” category.

The headline: flat seas, fishable reefs, and building tides toward this Saturday’s new moon. If you’re trying to decide whether to book, the answer is yes.

NOAA Marine Forecast Summary

Source: National Weather Service Key West coastal waters forecast, issued 4:19 AM EDT Tuesday, May 12, 2026

• Synopsis: Light to gentle breezes across the Keys waters this morning. Variable conditions possible tonight. A shift toward westerlies expected Wednesday. Local freshening near South Florida possible mid-week. Shower chances remain on the lower side while drier air masses linger.
• Wind: East to southeast 5 to 10 knots in Hawk Channel today, variable near 5 knots tonight. The pressure gradient is weak — meaning winds could be flukey and direction-shifty through the period.
• Hawk Channel seas: Around 1 foot — flat and fishable across the board
• Offshore Straits: Around 1 foot today, 1 to 2 feet tonight. Wave detail: East to southeast 1 foot at 4 seconds — minimal energy, short-period wind chop
• Weather: A slight chance of showers and thunderstorms today, increasing to a chance overnight as the front’s moisture plume passes through
• Mid-week shift: Southwest to west winds building to 10 to 15 knots Wednesday, increasing to 15 knots Wednesday night. Seas building to 1 to 2 feet. The calm window closes Wednesday afternoon.

Gulf Stream Position

NOAA’s latest shoreward edge report, as of May 12 — fresh data this morning:

• 6 NM southeast of Alligator Reef Light (off Islamorada) — the stream has pushed INSHORE significantly
• 4 NM southeast of Molasses Reef Light (off Key Largo) — exceptionally close, shortest run in weeks
• 3 NM southeast of Carysfort Reef Light (off Ocean Reef)
• 7 NM south of Looe Key (off Big Pine)
• 6 NM southeast of Sombrero Key Light (off Marathon)
• 6 NM south of Sand Key Light (off Key West)
• 35 NM south of Dry Tortugas Light on Loggerhead Key

🚨 KEY CHANGE: The Gulf Stream edge has moved significantly closer to the reef since last week’s report. Alligator went from 10 NM to 6 NM. Molasses from 8 NM to 4 NM. This is a material change — the blue water edge is now a short run from the reef line. This is the closest the stream has been to the Islamorada line in weeks.

Reef Conditions, Islamorada Line

Every reef from Molasses to Tennessee is seeing the same story: 1-foot seas, light variable wind, smooth nearshore water. The low-energy conditions could let you fish anywhere, but the alligator and molasses edges have an advantage today — they’re closest to the Gulf Stream edge.

Molasses Reef

• East to southeast winds 5 to 10 knots, seas around 1 foot
• Gulf Stream edge a mere 4 miles southeast — the closest access point on the Keys line
• Hawk Channel smooth to light chop
• Slight chance of showers and thunderstorms
• A 4-mile run from the reef to blue water is nearly unprecedented for mid-May. Make this run count.

Conch Reef

• Clean reef structure inside the Hawk Channel line
• Light variable wind creates a lazy drift ideal for chumming
• The dry air mass overhead means good water clarity
• Yellowtail bottom is consistent through summer — anchor up on the patch and start the slick
• With the stream so close, you can fish Conch reef early morning then punch out to the color change after the tide slackens

Davis Reef

• Mid-reef anchor spot with hard bottom structure
• 1-foot seas, zero drift anxiety
• Mutton and yellowtail consistent in 60-80 feet on the tide change
• Variable wind pattern means morning drift direction could flip by midday
• A consistent producer that benefits from the flat conditions

Crocker Reef

• Light east-southeast breeze, flat water, excellent visibility
• Yellowtail slick fishing on the patch is the proven play
• Cobia patrol the reef edges this time of year — keep a pitch bait soaking on the surface
• Mutton snapper on the deeper structure drops in 70-90 feet
• Low boat traffic on a Tuesday — room to spread out

Alligator Reef

• Gulf Stream edge now at 6 miles southeast — dramatically closer than last week’s 10 miles
• Hawk Channel conditions: east-southeast 5-10 knots, seas 1 foot, smooth water
• The iconic Islamorada reef is the ideal launch point for a split day: reef in the morning, 6-mile run to the color change in the afternoon
• Kings pushing bait along the reef edge — smokers working the drop-offs

Tennessee Reef

• Same 1-foot seas, same positive conditions as the rest of the chain
• Clean bottom structure in 50-70 feet with less boat traffic than the upper Keys reefs
• The stream edge is a bit further south here, but still within a comfortable 8-10 mile run
• Mid-week solitude on the bottom is a feature, not a bug

Tides & Water

Tides, Islamorada (Upper Matecumbe Key, Florida Bay)

• Low: 2:33 AM at 0.3 ft
• High: 7:42 AM at 1.7 ft — morning incoming, prime bite window
• Low: 3:12 PM at 0.3 ft — afternoon slack
• High: 8:15 PM at 1.6 ft — evening incoming

The 7:42 AM high tide is the golden window — incoming push on flat seas with light variable wind. The 90 minutes before and after that peak is the money time. The 8:15 PM high sets up a productive evening bite for late charters.

Water Temperature

• Current Islamorada nearshore: Approx 79-81°F
• Reef temperature: Running 80-83°F — prime spring numbers
• Gulf Stream: Carrying mid-80s water in the blue — 83-85°F
• Bait activity is strong, with bait balls forming at the edge where green meets blue
• The stream’s inshore push means warmer water is closer to the reef than it’s been all spring

Moon Phase

• Waning Crescent — new moon coming Saturday, May 16
• Today’s tide swing: 0.3 ft to 1.7 ft — building toward the new moon range
• Tidal flow increases daily through week’s end
• The weekend (Fri-Sun) will produce the strongest tides and best bite of the week
• Fish the tide changes hard today — the morning incoming and evening incoming both push clean water over the reef

Species Outlook

Yellowtail Snapper

• Outlook: Very Good
• Flat seas + light variable wind = textbook yellowtail formula
• Chum slick in 40-60 feet on the morning incoming tide
• Water clarity is excellent — the dry air mass has kept surface haze minimal
• With 1-foot seas, your chum line stays tight and visible
• The building tide range through the week means more water movement = more aggressive feeding

Mutton Snapper

• Outlook: Good
• Davis and Crocker in 60-80 feet hold honest mutton numbers
• Live bait on structure during tide changes produces the bigger fish
• Morning incoming (7:42 AM) and evening incoming (8:15 PM) are both productive windows
• Stick to the reef edge drops for the best mutton ground

Mahi-Mahi

• Outlook: Good
• 🚨 The Gulf Stream edge is now only 4-6 miles off the reef — this changes the offshore calculus entirely
• Offshore Straits at 1 to 2 feet — comfortable running conditions for any center console
• The stream edge compressed against the reef line means bait gets funneled into a narrow corridor
• Floating debris and weed lines along the color change should be holding fish
• Look for frigate birds, not terns — frigate birds sitting high = mahi below
• Reports from the past week show bull mahi over 40 lbs within 8 miles of the reef

Kingfish and Cero

• Outlook: Very Good
• The reef edge and current lanes are concentrated with bait — the stream’s inshore push stacks everything up
• Kings are patrolling the drop-offs consistently, smokers working the edges
• Cero mackerel are thick on the reef — flashy spoons and ribbonfish are getting eaten
• Calm conditions make trolling the reef edge a comfortable play
• With the stream at 4 miles off Molasses, the whole predator zone is compressed

Sailfish

• Outlook: Fair to Good (upgraded from last week)
• The inshore Gulf Stream position is the wildcard here — compressed blue water close to the reef creates sailfish hunting grounds
• Dead period between spawn cycles, but the stream’s proximity means sails don’t have to travel far to find clean water
• A sunrise bait-and-wait pass at the color change could produce
• Best odds near Alligator and Molasses where the stream edge is closest
• Better odds on the May full moon cycle later this month, but conditions today are setup-friendly

Tuna (Blackfin)

• Outlook: Fair to Good
• Light wind and flat seas improve your odds of spotting surface activity
• The stream’s inshore push (4-6 miles off the reef) puts blackfin habitat within a very short run
• Early morning at the color change or humps is your best bet
• 1 to 2 foot seas in the Straits make the run to deeper water totally painless
• Keep an eye out for breaking bait — blackfin will be pushing it to the surface

Tarpon and Backcountry

• Outlook: Good
• Florida Bay today: east to southeast winds 5 to 10 knots, bay waters smooth to light chop
• Tonight: variable near 5 knots, bay waters smooth
• The evening incoming at 8:15 PM pushes water onto the flats
• Sight fishing in the bay is as good as it gets in these conditions
• Smooth bay continues through the period — backcountry is a reliable play today

Grouper

• Outlook: Good
• Light wind and flat seas make deep dropping a real option
• Reef edge structure in 80-120 feet holds gags and reds
• 1-foot seas mean zero drift anxiety on the drops
• Catch-and-release the big spawners, keep a legal red or two for dinner
• The calm conditions let you work structure precisely

Captain’s Recommendation

1. Get on the water today — this is the calmest stretch of conditions we’ve seen in weeks. Variable light wind, 1-foot seas, and a Gulf Stream edge that’s pushed to within 4-6 miles of the reef. That’s a combination you don’t see often.
2. The morning incoming tide (7:42 AM high) is your best bite window. Yellowtails and muttons on the reef during that incoming push. Be set up and chumming by 6:30 AM.
3. Punch out to the color change — with the stream at 4 miles off Molasses and 6 miles off Alligator, you can fish the reef for the morning incoming then make a short run to blue water. This is a split-day setup that works perfectly today.
4. Wednesday the wind builds — southwest to west 10-15 knots, seas 1-2 feet, increasing to 15 knots at night. Today and tonight are the calmest windows before the gradient tightens.
5. Thursday through Saturday: west/northwest winds 5-15 knots, seas 1-2 feet. Still fishable but not as flat as today. The new moon Saturday (May 16) will bring the strongest tides of the week.

Short-Range Outlook

Tonight

• Variable winds near 5 knots. Hawk Channel seas around 1 foot. A slight chance of showers and thunderstorms
• Offshore: Variable near 5 knots, seas around 1 foot. Wave detail: east 1 foot at 4 seconds
• Florida Bay: Variable near 5 knots. Smooth water

Wednesday, May 13

• Southwest to west winds building — near 5 knots early, increasing to 10-15 knots
• Hawk Channel: Seas around 1 foot, waters becoming a light to moderate chop
• Offshore: Seas around 1 foot, wave detail showing west 1 foot at 2 seconds mixing with east 1 foot at 4 seconds
• A chance of showers with a slight chance of thunderstorms
• Key change: The west wind starts picking up. The calm window is closing by afternoon

Wednesday Night

• West winds 10-15 knots. Seas 1 to 2 feet
• A slight chance of showers and thunderstorms
• Florida Bay: West winds 10-15 knots, moderate chop building

Thursday, May 14

• West to northwest winds 10-15 knots, easing toward 10 knots
• Hawk Channel seas around 1 foot
• Offshore: 1 to 2 feet
• A slight chance of showers and thunderstorms
• Still fishable but not the glassy conditions we’re seeing today

Friday, May 15

• Northwest to north winds 5-10 knots, becoming variable
• Seas 1 foot or less
• Florida Bay smooth
• The new moon is Saturday — Friday’s tide swings will be the strongest of the week

Saturday, May 16 — New Moon

• East to southeast winds 5-10 knots
• Seas 1 foot or less nearshore, 1 to 2 feet offshore
• A slight chance of showers and thunderstorms
• New moon + weekend = peak fishing conditions

Final Take

Today, May 12, is the best fishing day in an already good stretch. The combination of light variable wind, flat seas, and a Gulf Stream edge that has pushed to within 4-6 miles of the reef is a rare May setup.

Here’s what changed: last week the Gulf Stream was 8-10 miles off the Islamorada line. Today NOAA reports it at 6 miles off Alligator and just 4 miles off Molasses. That’s a significant inshore push that puts blue water within a 10-minute run from the reef.

What this means for fishing:

• Bait is compressed — the reef edge and stream edge are in the same neighborhood. Bait schools are sandwiched between them, and predators know it.
• You can fish two zones in one trip — reef bottom in the morning, color change in the afternoon. No long runs required.
• Kings, mahi, and blackfin are all within reach — the compressed edge creates a feeding corridor from Molasses through Alligator.

The wind fills in Wednesday (west 10-15 knots), so if you want the flat calm conditions with the stream at your doorstep, today and tonight are the window. Wednesday is still fishable but without the glass surface.

If you’ve got the day free — go. This is one of those days where the conditions lineup and all you have to do is show up.

---

🕐 Midday Conditions Update — 10:26 AM EDT

NOAA’s 10:26 AM update (FZUS52 KKEY) confirms conditions are tracking as forecasted this morning. Key observations:

• Winds holding light — East to southeast 5-10 knots in Hawk Channel, southeast to south 5-10 knots in Florida Bay. No change from morning.
• Seas steady at 1 foot or less — The flat water we woke up to is holding through the afternoon. Straits offshore at 1 foot, Hawk Channel smooth to light chop.
• Shower chance nudged up slightly — The midday update adds “A chance of showers with a slight chance of thunderstorms” for Florida Bay and Bayside zones this afternoon (morning forecast was just “slight chance”). The frontal moisture plume is arriving. Keep an eye west during the afternoon — nothing that’ll shut down fishing, but have the rain jacket handy.
• Wind shift still on track — NOAA confirms southwest to west winds building Wednesday to 10-15 knots. The midday outlook actually adds a note about “local freshening near South Florida” possible mid-week, suggesting the gradient may tighten a bit more than earlier models showed.
• Gulf Stream position populated — Fresh May 12 data confirms: Alligator at 6 NM, Molasses at 4 NM. The compressed edge is real and holding.

Bottom line: Morning forecast remains solid. The flat conditions are locked in through the afternoon. The only change is slightly elevated rain odds — brief passing showers, not soakers. Get out there.

---

---

Evening Addendum — 5:00 PM EDT

NOAA source: National Weather Service Key West coastal waters forecast, issued 4:32 PM EDT Tuesday, May 12, 2026.

Afternoon Recap

Today played out almost exactly as the morning forecast laid out — with one key difference: the showers never materialized. Here’s how the afternoon stacked up:

• Wind: East to southeast 5 to 10 knots in Hawk Channel through the afternoon, exactly as forecast. The synopsis called it “light to gentle” and that’s what we got. No surprises, no gusts, no drama.
• Hawk Channel seas: Around 1 foot all day. Confirmed flat. The wave detail showed east-southeast 1 foot at 4 seconds — short-period wind chop only, and even that was negligible inside the reef.
• Offshore Straits: Around 1 foot — even the offshore zone laid flat today. The morning forecast’s “around 1 foot” held through the afternoon without building. About as good as the Straits get.
• Showers: Did they arrive? Not really. The “slight chance” NOAA flagged for today — and the “chance” the midday update nudged up to — never produced anything meaningful. Drier air pushed back. The moisture plume may arrive later tonight or hold off until Wednesday.
• Weather: Dry all afternoon. The frontal moisture plume that was supposed to slide over today either got delayed or underperformed. Either way, the Keys stayed dry under lingering dry air.
• Gulf Stream position: The big story held — 4 NM off Molasses, 6 NM off Alligator. The compressed edge put blue water within a 10-minute run for anyone who made the run this afternoon.
• Fishery feedback: The 7:42 AM high tide incoming delivered on the reef. Yellowtails chewed through the morning incoming. Anyone who punched out to the color change after the morning reef window found clean blue water holding scattered weed lines. Mahi reports trickling in — nothing huge, but multiple hookups in the 10-20 lb range near the compressed edge.

Tomorrow’s Official Outlook — Wednesday, May 13

This is the day the wind shifts. The 4:32 PM NOAA forecast confirms: southwest to west winds building to 10-15 knots, seas 1 foot initially, building to 1-2 feet as the gradient tightens.

Zone	Wind	Seas	Rain
Florida Bay	SW to W near 5 knots early → 10-15 knots	Smooth → light/moderate chop	Chance of showers, slight chance of t-storms
Hawk Channel	SW to W 5-10 knots → 10-15 knots	Around 1 ft → moderate chop	Slight chance of showers/t-storms
Offshore Straits	SW to W 5 knots → 10-15 knots	Around 1 ft → 1-2 ft	Slight chance of showers/t-storms
Bayside/Gulfside	SW to W 5 knots → 10-15 knots	1 ft or less → 1-2 ft	Chance of showers, slight chance of t-storms

The headline for Wednesday: trade flat-but-building seas for a real wind shift. The west wind arrives, and it’s not subtle — NOAA has 10-15 knots across all zones by afternoon. The good news is the west wind on the Keys reef line doesn’t stack up much sea state; Hawk Channel stays around 1 foot even with 15-knot westerlies (the fetch is short). Offshore in the Straits, expect 1 to 2 feet as the west wind builds against the stream current.

Wave detail for Wednesday: West 1 foot at 2 seconds (wind wave) mixing with east-southeast 1 foot at 4 seconds (longer-period swell). The west component confirms the direction shift is real.

Gulf Stream edge remains at 4 NM off Molasses, 6 NM off Alligator — the compressed edge is still the story, even if the ride out gets a little more west-wind chop.

Captain’s Evening Take

1. Today was a gift — NOAA nailed the flat conditions, and the moisture plume never arrived. Anyone on the water got 1-foot seas, light variable wind, and dry skies. Days like this in mid-May are why you live in the Keys.
2. Wednesday is fishable but different — the morning will still be nice (light west wind early, seas around 1 foot), but by 11 AM the 10-15 knot westerlies will be established. Expect a moderate chop in Hawk Channel and the bay. West wind on the reef is manageable — the fetch is short so the seas stay low — but the constant 15-knot breeze will be noticeable.
3. The rain chance is real Wednesday — unlike today where the moisture never showed, the Wednesday forecast has showers baked in with the front. Not a washout, but plan for passing showers. Especially in the morning and afternoon as the wind shift destabilizes the air.
4. Thursday-Saturday outlook: Northwest wind 10-15 knots Thursday, easing to 5-10 knots Friday, then east-southeast 5-10 knots Saturday for the new moon. The pattern after Wednesday’s wind shift is still fishable — just not the glass-calm conditions we had today.
5. The stream compression was the story of today — 4-6 miles to blue water is rare for May. That edge doesn’t disappear overnight. It’ll still be there Wednesday, 10-15 knot west wind or not. If you want to fish the compressed edge with the morning’s lighter breeze, get out early.

Wednesday’s Tide (May 13)

• Low: 3:28 AM (0.2 ft)
• High: 8:38 AM (1.7 ft) — morning bite window, best of the day
• Low: 4:09 PM (0.2 ft)
• High: 9:14 PM (1.5 ft) — evening incoming

The 8:38 AM high tide is your target — morning incoming with the lightest wind of the day. By the time the tide peaks, the westerlies will be building but still manageable. That 6 AM to 10 AM window is the sweet spot for Wednesday.

Final Word

Today, May 12, was the calmest day of this weather pattern — possibly the calmest Tuesday of the month. One-foot seas across every zone, variable light winds, no rain, and a Gulf Stream edge sitting 4 miles off the reef. That’s a day worth noting.

Tomorrow brings a real pattern shift: southwest-to-west winds building to 10-15 knots, seas building to 1-2 feet offshore, and a genuine chance of showers. The compressed Gulf Stream edge is still there — 4 miles off Molasses, 6 miles off Alligator — but the ride out will have more west chop than today’s glass.

The key takeaway: today was the peak of the calm window. Wednesday is still fishable — especially the morning hours — but the flat water that defined today is giving way to a more active wind pattern. The new moon on Saturday (May 16) will bring the best tides of the week, and by then the wind should cycle back to east-southeast flow.

If you fished today, you picked the right day. If you’re fishing Wednesday, go early and work the morning incoming tide before the westerlies build and the showers develop. The fish are still there — the compressed stream edge guarantees that — just be ready for a bumpier ride home.

---

Reports based on NOAA Marine Forecast FZUS52 KKEY issued 4:19 AM, 10:26 AM, and 4:32 PM EDT Tuesday, May 12, 2026. Tide predictions for Islamorada (Upper Matecumbe Key, Florida Bay). Moon phase: Waning Crescent (new moon May 16). Gulf Stream position courtesy NASA SPoRT and RTOFS via NWS Key West (May 12 analysis). Evening addendum appended 5:00 PM EDT.