Golden-day alerts: an email that's quiet on purpose

Golden-day alerts went live on 5 July. In the first fourteen days, an alert email went out on eleven of them. For a signal whose whole promise is "this doesn't happen often", that's a problem, and this week I fixed it before most of you would have noticed.

A golden day is the rare one where tide, moon, light, weather and season all land in the same window. The site has always shown these windows if you checked it. But not everyone checks a fishing site every morning, so it now sends one short email, at least a day ahead, when a golden day is coming for your water.

The short version:

• One short email, at least a day ahead, so you can shuffle the calendar.
• Only the truly standout days. Some months that's two or three emails. Some months you'll hear nothing at all. That silence means it's working.
• Your choice of water: all of Newcastle, all of Lake Mac, both, or one favourite spot.
• The email says when, where, what to target and why the day works, plus a local tip.
• Free, and unsubscribe is one click that actually works.

What actually goes into a golden call

The site scores every spot it knows, around the clock, a week ahead. For each spot and each window of the day it looks at the tide, and not just high or low but whether the water will be moving or turning while you're standing there. The moon phase and the solunar feeding windows. First and last light. Wind against each spot's own geography, because a southerly that ruins the beaches can leave a harbour corner glassy. Swell, which on the rock platforms is a safety question before it's ever a fishing question. Water temperature against what each species likes. Season, recent rain, and what that rain does to clarity, which helps some fish hunt and blinds others.

How those signals get weighed against each other is the part I keep to myself. Not because it's magic. It's years of local patterns condensed into numbers, corrected whenever the water proves it wrong, and it's what makes this site different from a weather app. A golden day is when an unusual number of those signals stack in the same few hours at the same spot. That's why there are so few of them.

The machine and the fishos disagreed about wind

Here's the honest bit. Digging into why the first fortnight produced so many alerts, I found the scoring loved windy days, as long as it could find you a spot tucked out of the wind. Shelter got rewarded so generously that a blowy day with one good corner could outrank a still, glassy morning. Ask any fisho what they think of a windy day and you get the same answer. Nah. Too windy. They're right, and the machine was answering the wrong question. "Where's the best spot today" is allowed to love the sheltered corner. "Is today special" is not.

So this week I rebuilt that part. Calm days now get the credit they always deserved, and shelter on a windy day counts as damage limitation, not a bonus. I replayed a full year of conditions against the old and new versions before shipping it, and replayed the first fortnight too: three days would have made the cut, all on Lake Macquarie, the pick of them Sunday 12 July at Croudace Bay with the bream on. Three genuinely special days in a fortnight of decent winter fishing, and quiet the rest of the time. That feels right to me.

What that means if you sign up

Most weeks you won't hear from me. When you do, the coming day is one of the best this stretch of coast will serve up that month. You can sign up here: pick your area or your spot, click the confirmation email, done.

The usual honesty applies. An alert is the odds lining up, not a promise. Fish can't read forecasts, and the bloke who has fished his spot for thirty years will read a day better than any dataset. If an alert calls a dud, or misses a cracker, I want to hear about it. That's how the numbers get better.

What I'm watching for

Whether the new bar holds through winter into spring, because warmer water shifts what a good day looks like. And whether the calm, glassy mornings the old scoring undervalued start showing up as golden days, because if the fishos are right, and I think they are, that's where the crackers have been hiding. I don't know yet. The alerts, and the quiet between them, will tell us.