How to use Glow

1. Choose the spot

Search a place, use your location, or drop a pin. The two latest saved places sit under the search box. If the open place is not saved, tap Save place. You can keep four, on this device. The others are in Saved places, further down, where you can open, rename, or remove them. The word is for that spot, not the whole glen. A valley under a lid and a hill above it are different mornings.

2. Read the word

The large copper word is the colour at that sunrise or sunset. The four words are the same ones Transparency uses for the air.

• Excellent. Worth getting up for, or worth staying out for. Broken cloud, and the light can get under it.
• Good. There should be colour. Worth it if you are close.
• Fair. A quiet one. Some colour, or only a clear horizon.
• Poor. Not worth getting up for the colour. Low cloud, rain, fog, or nothing for the light to catch.

3. Look through the week

The bars under each card are the coming sunrises, or the coming sunsets. A taller bar means more colour. Copper means Good or Excellent, the same idea as a 60% bar in Lid. Tap a bar to read that morning or evening.

4. See what is in the way

Low cloud, middle cloud and thin high cloud use Transparency’s words: Clear, Wisps, Veil, Sheet, Covered, and the same scale for haze, smoke, dust and humidity. A longer copper bar means more of that thing is in the air. The lid row uses Lid’s words: Very likely, Likely, Possible, Low chance, Unlikely.

If a lid is holding a deck of low cloud, the spot itself can read Poor while the line under it says the tops are Excellent or Good. That is the climb. It is still only a forecast of colour.

5. The rest of the night

The box under the two cards stays closed. The line on it is Lid, Transparency, Frost, Sky Contours and Night Glass for the sunrise or sunset you have open. Tap a bar to point the box at that morning or evening. Open the box for a little more, and a link that opens the other app at the same place and the same time.