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Your phone buzzes. A meter 28 miles up the shore just jumped to 19 knots. You grab your keys.

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3:47 📶 100%
💬 WindStoke now
🔥 Pere Marquette just fired
Jumped to 22 kts SW. That meter is 28 miles up the shore, upwind of your spot.
📆 WindStoke 6:00 AM
📆 Saturday looks good at Grand Haven
3 of 4 models agree on 18-22 kts SW. Clear your afternoon.
🌡️ WindStoke 1:15 PM
🌡️ NW thermal filling in at Muskegon
Forecast said East, not rideable. It's swinging NW and building, 8 to 14 kts. Be on the water by 2:00.

You know the guy.

Every spot has one. He's already on the water when you pull in. He's always already on the water when you pull in. You don't know what he does for a living. He's got the tan and the sun-bleached hair and that lean, weathered look that tells you everything about his priorities without him saying a word. You're rigging up and you hear it before you see it. A kite ripping through a turn so hard the lines sing. He's way above the water, kite looping, and he floats it down with a heli like gravity is a suggestion.

And here's the part that gets you: the forecast said today was dead. Light, out of the east, not worth the gas. He came anyway, because he knew the sand would bake by noon and the lake would answer, that by two it'd be cranking out of the northwest. It always does. Your app never saw it coming. He did.

What does he know that you don't?

Read the full story →

What he knows, on the record.

LAKE-BREEZE CALLS · HOLLAND

forecastmeter

Today the forecast had Holland at 7 kt. We called the lake breeze at 7:00 am, and it came in at 4:30 pm: 8 kt so far.

  1. Todayforecast 7meter 8 kt so farCame in 4:30 pm
  2. Yesterdayforecast 6meter 7 ktNo lake breeze
  3. Sat Sep 26forecast 5meter 13 ktCame in 5 pm
  4. Thu Sep 17forecast 8meter 11 ktNo lake breeze
  5. Mon Sep 14forecast 6meter 9 ktNo lake breeze
  6. Sat Sep 12forecast 9meter 12 ktNo lake breeze

Since June 6: called 43 times, came in 21 (49%). Not called 71 times, came in 8 (11%).

Premium riders had today’s call at 7:00 am.Sent by push or email the morning we call it, at the spots where the call has a record. Full Premium free through Dec 31 — no charge until Jan 1, cancel anytime
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How this was measured

Called means the morning lake-breeze watch flagged that afternoon at Holland. Came in means the afternoon at the meter (HLNM4) was graded a lake breeze: the wind swung onshore and built. Forecast is HRRR’s afternoon peak for the spot as of that morning; meter is the afternoon’s peak sustained wind. Every called day is listed, the misses too. Not called is every other graded day, including the ones the watch saw primed but held back. Only spots where the call has measurably beaten the quiet days get this card, and those are the spots it is sent from.

What no other app does

Four things that change when you stop guessing and start knowing.

01Upwind Radar
WindStokenow
🔥 Port Washington jumped 8 → 19 kts. That meter is 28 miles upwind of your spot.

It watches the water upwind of you.

The local checks the meters up the shore before he loads the car. WindStoke checks all of them, and tells you the moment one upwind of you fires. It reports what the meter did and how far away it is — it won't tell you a minute the wind will arrive, because we can't measure that well enough yet to put a time on it.

02Virtual Station
WindStokelive
Estimated 19 kts at your sandbar. Nearest observation: 18.5 kts. No station within 8 miles.

It knows your spot.

Your favorite beach doesn't have a wind meter. WindStoke learns how your coordinates run against the nearest reporting station — direction by direction — and applies that to its live reading, so you get a number for your sandbar instead of the airport's.

03Session Match
WindStoke6:00 AM
Thursday matches 47 past sessions. Like Aug 14th, when you rated it 🔥. You wrote: "come earlier."

It remembers your best days.

Log your sessions. When those conditions return, your own words come back to you, like a buddy who was there and has a better memory than you do.

04Thermal Alert
WindStoke1:15 PM
🌡️ Afternoon NW thermal filling in at Muskegon, building to 16 kts. The forecast said East 8.

It feels the breeze the forecast misses.

On a sunny day the land bakes and the lake answers. A thermal cranks onshore while the forecast still reads dead. WindStoke learns each spot's afternoon sea breeze and pings you the moment it's igniting, hours before it peaks.

05Ask Jetty
Ask Jettyjust now
"Worth burning a vacation day for Thursday at Muskegon?"
Thursday's your day. SW 18 to 22 filling in late morning and holding into the evening, and three of four models agree on it. Friday's the one I'd skip. It swings east and dies by noon.

It answers in plain English.

Ask it anything about your spots the way you'd text a buddy who's already looked. Jetty reads your actual forecast, not the internet, so every number in the answer comes from the data. When the models disagree, he says so instead of picking one to sound confident. He's named after Jetty, the guy who used to answer these questions on our old blog.

The wind the forecast doesn’t have.

MUSKEGON · MKGM4 · SEPTEMBER 6, 2026

measured windwhat the model heldwind it didn’t havewind was onshore

The model said 7.3 knots. We said 15. It blew 17.1.One good day is an illustration, not evidence. The evidence is the whole record: of every lake-breeze alert we have sent and since graded, 24 of 39 were confirmed.

How a lake breeze forms: the sun heats the land, the hot air over it rises, and cooler air over the lake flows in to replace it. That inflow is the onshore wind at the beach. LAKE LAND The sun bakes the land, and the hot air over it rises. Cooler air over the lake slides in to take its place. NNW 17.1 kt at the beach, from 3:00 PM How a lake breeze forms: the sun heats the land, the hot air over it rises, and cooler air over the lake flows in to replace it. That inflow is the onshore wind at the beach. LAKE LAND The sun bakes the land. Hot air rises. Cooler air over the lake slides in. NNW 17.1 kt at the beach, from 3:00 PM

and here is the day it happened

Measured wind at Muskegon on 2026-09-06 from 7:00 AM, against the single figure the model held for that afternoon. 0 6 12 18 KT 7A 10A 1P 4P 7P 10P MODEL HELD 7.3 KT ALL DAY the wind the model didn’t have WE SAID 15 KT NNW, 7:00 AM it fired 4:45 PM 17.1 kt at 6:10 PM SHADED = WIND CAME ONSHORE AMERICA/DETROIT Measured wind at Muskegon on 2026-09-06 from 7:00 AM, against the single figure the model held for that afternoon. 0 6 12 18 KT 7A 10A 1P 4P 7P 10P MODEL HELD 7.3 KT WE SAID 15 KT NNW, 7:00 AM it fired 4:45 PM 17.1 kt at 6:10 PM SHADED = WIND CAME ONSHORE

Every point is one observation from MKGM4 — 144 of them that day — timestamped UTC and redrawn in America/Detroit. The dashed line is the single figure the model held for that afternoon, recorded that morning before any of this happened; the chart opens at the hour we sent the watch, and the shaded band is every reading that came in above it, on a morning reading air 77°F over water 71°F.

What a lake breeze is, how we spot one coming, and the record of every call — on the forecast FAQ →

Set up once. Never check again.

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2

Dial in your conditions

Wind speed, direction, waves, temperature, all combined in one alert profile.

3

Go when it buzzes

Real-time when it's happening. Forecast alerts days ahead. You just show up.

The forecast isn’t wrong. It’s wrong differently at every beach.

NWS VS MEASURED WIND · 87 METERS · 0-5H AHEAD · 51 DAYS

the national forecastafter we correct it

At Tawas Point the national forecast promises 4.8 knots that never show up. At Fort Gratiot it misses 2.4 that do. We shade every forecast by what that beach’s own meter has been measuring.So we don’t serve you the national number. Every forecast is shaded by what that spot’s own meter measured the last time we made the same forecast there.

TAWAS POINTaveraged over 135 forecasts
national forecast4.8 kt too much wind
after we correct it1.8 kt too much wind

↓ 3 kt closer at this beach

FORT GRATIOTaveraged over 656 forecasts
national forecast2.4 kt too little wind
after we correct it0.9 kt too little wind

↓ 1.5 kt closer at this beach

All 87 meters we have measured, each one tick on a knots axis. Left of centre the forecast promised more wind than the meter saw; right of centre it promised less. The two ends are the beaches named above. EVERY METER WE HAVE MEASURED — 87 OF THEM Tawas Point: -4.77 kt over 135 forecasts Oak St., Chicago: -4.31 kt over 336 forecasts Big Bay: -4.31 kt over 656 forecasts WAUKEGAN HARBOR: -3.56 kt over 656 forecasts Fernandina Beach: -3.26 kt over 624 forecasts ATW20 - Atwater Park: -2.87 kt over 209 forecasts Mayport , FL: -2.82 kt over 401 forecasts Toledo: -2.75 kt over 657 forecasts Marblehead: -2.71 kt over 656 forecasts Ashtabula Lighthouse: -2.66 kt over 656 forecasts Ludington: -2.39 kt over 656 forecasts Manistee Harbor: -2.25 kt over 890 forecasts Duluth: -2.06 kt over 656 forecasts Mayport (Bar Pilots Dock): -1.88 kt over 637 forecasts South Bass Island: -1.82 kt over 657 forecasts Ontonagon: -1.82 kt over 656 forecasts Big Sable Point: -1.78 kt over 911 forecasts Santa Monica Basin - 33NM WSW of Santa Monica: -1.65 kt over 567 forecasts Cleveland: -1.63 kt over 656 forecasts St. Joseph: -1.62 kt over 652 forecasts Navy Fuel Depot, St Johns River: -1.59 kt over 584 forecasts Blount Island Command, St Johns River: -1.48 kt over 623 forecasts Michigan City Buoy: -1.45 kt over 643 forecasts Charlevoix Muni, MI: -1.45 kt over 656 forecasts Oswego: -1.44 kt over 656 forecasts Frankfort/Dow Mem, MI: -1.37 kt over 644 forecasts Ludington Buoy: -1.35 kt over 597 forecasts Northerly Isle: -1.35 kt over 655 forecasts Geneva on the Lake Light: -1.35 kt over 563 forecasts Muskegon Buoy: -1.34 kt over 320 forecasts Holland Buoy: -1.28 kt over 640 forecasts Calumet Harbor: -1.23 kt over 656 forecasts Jacksonville Craig Municipal Airport: -1.21 kt over 586 forecasts Milwaukee: -1.16 kt over 309 forecasts Los Angeles Badger Avenue Bridge: -1.15 kt over 292 forecasts GRAYS REEF - 40 NM Southeast of Savannah: -1.14 kt over 382 forecasts Cook Nuclear Plant Buoy, Stevensville: -1.13 kt over 640 forecasts Sturgeon Point Light: -1.13 kt over 156 forecasts Wilmette Buoy: -1.03 kt over 649 forecasts Fulton/Oswego Cnty, NY: -1.00 kt over 656 forecasts Manitowoc Muni, WI: -0.98 kt over 648 forecasts Gerald R. Ford International: -0.96 kt over 226 forecasts Holland - West Michigan Regional Airport: -0.90 kt over 648 forecasts Kewaunee MET: -0.89 kt over 656 forecasts Fairport: -0.82 kt over 130 forecasts Muskegon County Airport: -0.77 kt over 648 forecasts Port Hope: -0.72 kt over 646 forecasts Waukegan Buoy: -0.70 kt over 647 forecasts Salmon Unlimited Wisconsin: -0.66 kt over 540 forecasts Winthrop Harbor Buoy: -0.64 kt over 632 forecasts Mackinaw City: -0.56 kt over 656 forecasts Cherry Capital Airport: -0.56 kt over 644 forecasts Michigan City: -0.53 kt over 310 forecasts Thunder Bay Island: -0.49 kt over 307 forecasts SAN CLEMENTE BASIN - 27NM SE Of San Clemente Is: -0.33 kt over 529 forecasts Vermilion River at Lake Erie: -0.27 kt over 657 forecasts Olcott Harbor: -0.24 kt over 656 forecasts Chicago Buoy: -0.23 kt over 284 forecasts Ludington/Mason Cnty, MI: -0.21 kt over 648 forecasts Manistee/Blacker Arpt, MI: -0.21 kt over 391 forecasts Cadillac/Wexford Cnty, MI: -0.16 kt over 648 forecasts Kenosha Light, Kenosha: -0.13 kt over 625 forecasts Buffalo: -0.12 kt over 656 forecasts Gravelly Shoal Light: -0.12 kt over 159 forecasts Barcelona Harbor: -0.11 kt over 656 forecasts Mackinac Straits West, Mackinaw City: +0.01 kt over 598 forecasts Presque Isle Light: +0.02 kt over 621 forecasts NORTH MICHIGAN- Halfway between North Manitou and Washington Islands.: +0.02 kt over 648 forecasts Saginaw Bay Light #1: +0.12 kt over 648 forecasts Fremont Muni, MI: +0.13 kt over 648 forecasts Port Wing: +0.21 kt over 656 forecasts Sheboygan: +0.24 kt over 657 forecasts Sleeping Bear Dunes: +0.25 kt over 593 forecasts Port Inland: +0.26 kt over 130 forecasts Rochester Coast Guard: +0.34 kt over 651 forecasts Port Washington: +0.42 kt over 656 forecasts SILVER BAY: +0.63 kt over 657 forecasts Huron Harbor Light: +0.73 kt over 656 forecasts Grand Traverse Light: +0.96 kt over 656 forecasts Chicago: +0.98 kt over 493 forecasts Grand Marais: +1.03 kt over 656 forecasts Harbor Beach: +1.07 kt over 656 forecasts Muskegon CG Station, Muskegon: +1.17 kt over 493 forecasts Holland: +1.27 kt over 898 forecasts Alpena Harbor Light: +1.48 kt over 309 forecasts South Haven Light, South Haven: +1.55 kt over 494 forecasts Fort Gratiot: +2.42 kt over 656 forecasts -5 -4 -3 -2 -1 +1 +2 +3 0 ◀ RAN HIGH RAN LOW ▶ 47 of 87 miss by over a knot All 87 meters we have measured, each one tick on a knots axis. Left of centre the forecast promised more wind than the meter saw; right of centre it promised less. The two ends are the beaches named above. EVERY METER WE HAVE MEASURED — 87 OF THEM Tawas Point: -4.77 kt over 135 forecasts Oak St., Chicago: -4.31 kt over 336 forecasts Big Bay: -4.31 kt over 656 forecasts WAUKEGAN HARBOR: -3.56 kt over 656 forecasts Fernandina Beach: -3.26 kt over 624 forecasts ATW20 - Atwater Park: -2.87 kt over 209 forecasts Mayport , FL: -2.82 kt over 401 forecasts Toledo: -2.75 kt over 657 forecasts Marblehead: -2.71 kt over 656 forecasts Ashtabula Lighthouse: -2.66 kt over 656 forecasts Ludington: -2.39 kt over 656 forecasts Manistee Harbor: -2.25 kt over 890 forecasts Duluth: -2.06 kt over 656 forecasts Mayport (Bar Pilots Dock): -1.88 kt over 637 forecasts South Bass Island: -1.82 kt over 657 forecasts Ontonagon: -1.82 kt over 656 forecasts Big Sable Point: -1.78 kt over 911 forecasts Santa Monica Basin - 33NM WSW of Santa Monica: -1.65 kt over 567 forecasts Cleveland: -1.63 kt over 656 forecasts St. Joseph: -1.62 kt over 652 forecasts Navy Fuel Depot, St Johns River: -1.59 kt over 584 forecasts Blount Island Command, St Johns River: -1.48 kt over 623 forecasts Michigan City Buoy: -1.45 kt over 643 forecasts Charlevoix Muni, MI: -1.45 kt over 656 forecasts Oswego: -1.44 kt over 656 forecasts Frankfort/Dow Mem, MI: -1.37 kt over 644 forecasts Ludington Buoy: -1.35 kt over 597 forecasts Northerly Isle: -1.35 kt over 655 forecasts Geneva on the Lake Light: -1.35 kt over 563 forecasts Muskegon Buoy: -1.34 kt over 320 forecasts Holland Buoy: -1.28 kt over 640 forecasts Calumet Harbor: -1.23 kt over 656 forecasts Jacksonville Craig Municipal Airport: -1.21 kt over 586 forecasts Milwaukee: -1.16 kt over 309 forecasts Los Angeles Badger Avenue Bridge: -1.15 kt over 292 forecasts GRAYS REEF - 40 NM Southeast of Savannah: -1.14 kt over 382 forecasts Cook Nuclear Plant Buoy, Stevensville: -1.13 kt over 640 forecasts Sturgeon Point Light: -1.13 kt over 156 forecasts Wilmette Buoy: -1.03 kt over 649 forecasts Fulton/Oswego Cnty, NY: -1.00 kt over 656 forecasts Manitowoc Muni, WI: -0.98 kt over 648 forecasts Gerald R. Ford International: -0.96 kt over 226 forecasts Holland - West Michigan Regional Airport: -0.90 kt over 648 forecasts Kewaunee MET: -0.89 kt over 656 forecasts Fairport: -0.82 kt over 130 forecasts Muskegon County Airport: -0.77 kt over 648 forecasts Port Hope: -0.72 kt over 646 forecasts Waukegan Buoy: -0.70 kt over 647 forecasts Salmon Unlimited Wisconsin: -0.66 kt over 540 forecasts Winthrop Harbor Buoy: -0.64 kt over 632 forecasts Mackinaw City: -0.56 kt over 656 forecasts Cherry Capital Airport: -0.56 kt over 644 forecasts Michigan City: -0.53 kt over 310 forecasts Thunder Bay Island: -0.49 kt over 307 forecasts SAN CLEMENTE BASIN - 27NM SE Of San Clemente Is: -0.33 kt over 529 forecasts Vermilion River at Lake Erie: -0.27 kt over 657 forecasts Olcott Harbor: -0.24 kt over 656 forecasts Chicago Buoy: -0.23 kt over 284 forecasts Ludington/Mason Cnty, MI: -0.21 kt over 648 forecasts Manistee/Blacker Arpt, MI: -0.21 kt over 391 forecasts Cadillac/Wexford Cnty, MI: -0.16 kt over 648 forecasts Kenosha Light, Kenosha: -0.13 kt over 625 forecasts Buffalo: -0.12 kt over 656 forecasts Gravelly Shoal Light: -0.12 kt over 159 forecasts Barcelona Harbor: -0.11 kt over 656 forecasts Mackinac Straits West, Mackinaw City: +0.01 kt over 598 forecasts Presque Isle Light: +0.02 kt over 621 forecasts NORTH MICHIGAN- Halfway between North Manitou and Washington Islands.: +0.02 kt over 648 forecasts Saginaw Bay Light #1: +0.12 kt over 648 forecasts Fremont Muni, MI: +0.13 kt over 648 forecasts Port Wing: +0.21 kt over 656 forecasts Sheboygan: +0.24 kt over 657 forecasts Sleeping Bear Dunes: +0.25 kt over 593 forecasts Port Inland: +0.26 kt over 130 forecasts Rochester Coast Guard: +0.34 kt over 651 forecasts Port Washington: +0.42 kt over 656 forecasts SILVER BAY: +0.63 kt over 657 forecasts Huron Harbor Light: +0.73 kt over 656 forecasts Grand Traverse Light: +0.96 kt over 656 forecasts Chicago: +0.98 kt over 493 forecasts Grand Marais: +1.03 kt over 656 forecasts Harbor Beach: +1.07 kt over 656 forecasts Muskegon CG Station, Muskegon: +1.17 kt over 493 forecasts Holland: +1.27 kt over 898 forecasts Alpena Harbor Light: +1.48 kt over 309 forecasts South Haven Light, South Haven: +1.55 kt over 494 forecasts Fort Gratiot: +2.42 kt over 656 forecasts -4 -2 +2 0 ◀ RAN HIGH RAN LOW ▶ 47 of 87 miss by over a knot

Each tick is one meter’s average signed error over 49,243 forecasts made 0-5h ahead across 51 days, every one graded against that meter’s own reading at that hour. 65 run high and 22 run low; 1 meters with fewer than 50 forecasts are left out rather than drawn thin, and meters that have not proven they can measure wind at all are excluded entirely. Across all 87 meters the correction is worth 0.21 kt of average error at this range — the two beaches above are the extremes, not the typical case — and its value fades to nothing past three days out.

Full method — the rolling window, the shrink, the 3 kt clamp and the rebuilt gust — on the forecast FAQ →

We test every model. You get the winner.

FORECAST LAB · 5 MODELS RACED · LAST 120 DAYS

behind the baselineahead, but under the bar

We race every model we can get at your spot, and serve whichever one wins. So far nothing has beaten NWS plus your own meter — which is how we know that is the right thing to be sending you.Not a default we settled on. A result we keep re-measuring, separately for every spot and every range, every night. The day a model wins there, your forecast switches to it and the forecast page says so.

Every forecast model we run, shown at the lead time where it came closest to beating NWS plus each station's own measured correction. None has beaten it by enough to earn a switch. NOW SERVING · EVERY RANGE WE HAVE SCORED NWS, corrected by your own station's measured error Decided per spot and per range, re-checked every night, and handed over the moment something beats it. EVERY CHALLENGER, AT THE RANGE WHERE IT CAME CLOSEST Blend Blend at 72-95h: +0.21 kt vs baseline, n=43,194 over 34 days 0.21 kt ahead best at 72-95h NWS, uncorrected NWS at 144-168h: -0.04 kt vs baseline, n=38,817 over 31 days 0.04 kt behind best at 144-168h HRRR corrected HRRR at 0-5h: -0.12 kt vs baseline, n=45,646 over 35 days 0.12 kt behind best at 0-5h ECMWF corrected ECMWF at 48-71h: -0.32 kt vs baseline, n=42,766 over 33 days 0.32 kt behind best at 48-71h GFS corrected GFS at 0-5h: -0.35 kt vs baseline, n=45,646 over 35 days 0.35 kt behind best at 0-5h 62 RANGES SCORED SO FAR · 10 NOT MEASURED YET · 0 HAVE EARNED A SWITCH

Each bar is one model against the one we serve, over the same station-hours at the same lead, graded on what the meter actually read — shown at the range where that model came closest, which is the most generous reading of it we can give. Winning takes all four bars at once: 100 paired forecasts, across 14 separate days, a margin of 0.5 kt, and that margin bigger than twice its own error bar — and 0 have, which is why the table that records model switches is empty rather than missing.

The full board, all nine ranges, and what it takes for a model to earn a switch — on the forecast FAQ →

The receipts.

Every one of these is read straight out of our own record. Nothing here is written by hand.

The forecast missed it
On September 27 the models had Muskegon CG Station, Muskegon topping out around 7 kt. We called an afternoon lake breeze at 7:00 AM that morning. It came in at 18 kt, 8° off the direction we called.
When we say no
The morning read says the engine never starts, and it has been right 146 times out of 146. Not one of those afternoons turned on.
Days worth rigging for
Across 85 verified days at Harbor Beach, the raw forecast stayed under 12 kt on 39 days that actually got there. We measure that gap and correct for it.
When we said go
Over the last 90 days we said go on 65 days and it blew on 46 of them. The other half of that number: 131 days turned out rideable and we had called 46 of them the night before. On the 85 we missed, the night-before forecast ran an average 7.6 kt under what the meter went on to read, and 68 of them were June–August days.
The call we did not make
On 650 of those mornings our lake-breeze model had already scored the afternoon, and we measured whether letting it overrule the overnight forecast would help. It would not: across 166 days the forecast called off, the model's strongest call was followed by a rideable afternoon 8% of the time, against 71% for the forecast's own go-calls. So it overrules nothing. What it does measure is the gap: on those days the meter beat the forecast by a median 4.3 kt — real, and still short of most riders' bar.

What early testers say.

Feedback from the riders testing it, on the lakes and on the coast.

"I stopped reading the hourly table. I ask Jetty if tomorrow is worth it and get a straight answer about my spot instead of a wall of numbers. When he hedges, I've learned to believe the hedge."
N
Noah V.
Kiteboarding · Grand Haven
"I'm out in San Diego, a long way from the Michigan water this was built on, and it still reads my spot right. It knows my station runs a few knots light in the afternoon and fixes the number before I ever see it."
C
Clint T.
San Diego, CA
"It's early days on the wave side and Jeff will tell you that himself. But the surf call has already been closer to what I actually paddled out into than anything else I can find for the lakes."
J
John V.
Surfing · Frankfort

The nod.

You're at the trucks after a session. Wetsuit peeled down. Hands still trembling. Cold beer. Sand in your ears. People are still showing up, rigging in full wind, asking how you got here so early.

The legend is two spots over. Same beer. Same lean against the tailgate. He nods at you. Not a wave. Not a conversation. Just a nod.

And it hits you. You've been the second car in the lot a lot lately. Your name shows up in the group chat now. People have been asking you how you knew.

You nod back.

Who's building this

I'm not the legend. I just got tired of missing it.

A lone kiteboarder riding past a pier as big waves explode over it
That's me out there. Frankfort, Michigan, one of the good ones.

I'm Jeff. I kite in Michigan, and I build WindStoke — the forecast pipeline, the alerts, the app, the emails, the reply when you write in. There's no team.

This started in the early 2010s as a kiteboarding blog called Michigan Dawn Patrol that I ran with my buddy Matt. We were already trying to do what this app does — reading the upwind meters, calling the days, telling people when to drop everything and drive — but pulling in every model and tracking which one is actually right at your spot was a research project in 2012, not something one guy could ship. Now it is, so I'm building the system I always wanted: when it says it's going to be good, it's going to be good. Everything gets checked against what actually happened, and when I'm not sure, I say so.

Fair warning: it's not finished. You'll see rough edges, and I'd rather you hear that from me. What I won't do is tell you it's on when I don't believe it.

Matt posted on Dawn Patrol as "Jetty" — that's where Ask Jetty gets its name.

If something's wrong at your beach, tell me. I'm the one who reads it.

J
Jeff
Kiteboarder · Michigan · Founder, WindStoke

Stop checking charts. Stop asking the group chat. Stop showing up late.

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