PhotoWatch guide

How PhotoWatch decides it's time to shoot

You tell PhotoWatch what a great shoot looks like. We watch the forecast for you and only buzz your phone when enough of it lines up. Here's exactly how that decision is made, and how to set up your alerts so they work for you.

The big picture

Three steps, then you can forget about it

1. Pick your spots

Choose which of your saved locations this alert should watch. Each one is checked separately.

2. Choose your conditions

Add the conditions you want, give each one stars for how much it matters, and put them in order.

3. Get the heads-up

Before your shoot, PhotoWatch scores each spot. If one scores 67% or more, you get a notification.

Setting up conditions

Your three tools: conditions, stars and order

Desired conditions
⋮⋮ Low Tide ★★★★★
⋮⋮ Minimal Winds ★★★★★
⋮⋮ Mostly High Cloud ★★★★★
  • 1

    Conditions: what you want

    Tides, cloud, wind, fog, rain, swell, moon and more. Only add the things that genuinely make or break the shot.

  • ★

    Stars: how much it matters

    From 1 star (a nice bonus) to 5 stars (I really need this). Stars do almost all the work in the score.

  • ⇅

    Order: the tie-breaker

    Drag your conditions so the most important is on top. Order only gives a small nudge: it decides between conditions with the same stars, but never lifts a lower-starred condition above a higher one.

The score

How the score is worked out

Every condition is worth points: roughly its number of stars, plus a small extra for sitting higher in your list. At check time, PhotoWatch looks at the forecast for your shoot time and asks, for each condition, "is this going to happen?"

Points for conditions that line up ÷ All the points = Score
67% 0% 100% Quiet: no alert Alert! 67% is two thirds of your points
A worked example

A sunrise seascape alert

Say you shoot rock platforms at sunrise. You need a low tide, calm air helps a lot, and some high cloud to catch the colour would be lovely. So you set:

Low Tide ★★★★★ Minimal Winds ★★★★★ Mostly High Cloud ★★★★★
Everything lines upLow tide, calm, high cloud
100% ✓
No high cloudLow tide and calm only
77.5% ✓
WindyLow tide and high cloud only
66.7% ✓
Tide is wrongCalm and high cloud only
55.8% ✗

The dark line on each bar is the 67% mark. Exactly two thirds (66.7%) counts as a pass.

See what happened? Because Low Tide has the most stars, missing it sinks the score, while missing one of the lower-starred extras still gets you an alert. That is exactly how stars let you say what matters.

Star recipes

Three ways to set your stars

Most alerts fit one of these patterns. Pick the one that sounds like your shoot.

One must-have

One thing is essential, two are nice to have.

★★★★★ the essential★★ a bonus★★ a bonus
  • ✓Essential + one bonus: alert (76%)
  • ✗Essential alone: quiet (57%)
  • ✗Missing the essential: quiet (43%)
Two must-haves

Two things are essential, one is a small bonus.

★★★★★ essential★★★★★ essential★ a bonus
  • ✓Both essentials: alert (92% or more), bonus or not
  • ✗Missing either essential: quiet (52 to 56%)
All equal

Three things matter about the same.

★★★ first★★★ second★★★ third
  • ✓All three: alert (100%)
  • ✓Two of three: usually an alert (67 to 71%)
  • ✗...unless the one missing is top of your list (62%)
Either / or

Happy with more than one tide? Pick them both

Some conditions can never all happen at once: the tide can't be low and high at the same time. So when you choose more than one from the same family, PhotoWatch reads it as "either is fine". If any one of them lines up, that family counts as met.

Tide

LowORMediumORHigh

Swell

LowORMediumORHigh

Sky

Clear SkiesORMostly HighORMostly MediumORMostly Low Cloud

A family counts once in the score, with the highest stars you gave any of its members.

What each condition means

Exactly what we check

All checks use the forecast for your shoot time at each location.

Clear Skies

Low, medium and high cloud are each 10% or less.

Mostly High, Medium or Low Cloud

That cloud layer covers at least 60% of the sky and is the thickest of the three layers.

Minimal Winds

Wind of 15 km/h or less.

Fog

The forecast shows fog over at least 40% of the area.

Rain

Rain is forecast for that hour.

Potential Thunderstorm PRO

Thunder is mentioned in the forecast. An early heads-up, not a promise.

Low, Medium or High Tide PRO

Each day's rise and fall at your spot is split into thirds: bottom third is low, middle is medium, top is high.

Low, Medium or High Swell PRO

Wave height: low is under 1.25 m, medium is 1.25 to 2.5 m, high is 2.5 m or more.

Moon Phase PRO

Your chosen phase (new, crescent, half, gibbous or full), within 2 days either side.

Moon Below Horizon PRO

The moon is down, for a dark sky and foreground.

Galactic Core Visible PRO

The Milky Way core is above the horizon while the sky is fully dark (astronomical night).

Good to know

A few things worth knowing

  • Each spot is scored separately

    One alert can watch several locations. If any of them scores 67% or more you get one notification, with the best spot first.

  • We check ahead of time

    Your alert's warning time (for example 12 hours before sunrise) is when we look at the forecast for your shoot time. Checks run once an hour.

  • New or changed alerts

    If you create or change an alert less than about an hour before its warning time, it may not be checked until the next day.

  • No tide at your spot? No problem

    At an inland spot with no tide or swell, those conditions are simply left out of that spot's score, so they never count against it.

  • No forecast, no guess

    If the forecast is missing something we need (for example cloud data), that condition counts as not met. We would rather stay quiet than guess.

  • Astro alerts watch the whole night

    For astro alerts we check through the dark hours and only alert when conditions hold for at least 30 minutes.

Top tips

Set it up like a pro

  • 1

    Keep it short. Two to four conditions work best. Every extra condition is one more thing that has to line up.

  • 2

    Save 5 stars for true must-haves. Give bonuses 1 or 2 stars so they can't sink an otherwise great morning.

  • 3

    Don't pick conditions that fight each other. For example, Rain and Clear Skies will almost never happen together.

  • 4

    Put your favourite on top. When two conditions have the same stars, the one higher in the list counts a little more.

  • 5

    Make one alert per kind of shoot. A sunrise seascape and a Milky Way night want different things, so give each its own alert.

🔕 Alert too quiet?

Lower the stars on your bonus conditions, remove one you can live without, or add a second spot to watch.

🔔 Alert too chatty?

Add a condition that really matters to you, or raise its stars so it has to be met.