🗺️ The map

1. Five views along the top

Phone and web both switch the whole map between Map · Wind · Waves · Currents · Temp. All four forecast views are free.

• Temp — surface water temperature from NOAA's lake models, drawn as a cold-to-warm heat map. Find the warm seam without burning fuel looking for it. On the web there's a forecast scrubber you can play forward; the phone shows current water.
• Wind, Waves, Currents — animated NOAA forecast layers. Currents especially is the one to check before you argue with your downrigger cables.

2. Reading the bottom

• Depth contours (Premium) — labeled depth lines across all five Great Lakes. Drop-offs, humps, and structure at a glance, straight over the base map.
• Tap any spot — everyone gets the coordinates and distance from you; Premium fills in the rest for that exact point: bottom depth, water temp, wind and waves, and the nearest port.
• 📡 Auto Depth (Premium) lives on the catch form — one tap fills the Bottom Depth field from NOAA survey data at your coordinates, so the depth gets logged even when nobody read the graph.

3. Buoys — free, and honest about their age

The Buoys layer shows NOAA and GLOS observation platforms. Tap one for the quick line (wind, waves), then open the full readings: water and air temp, wind with gusts and direction, wave height and period, pressure. Buoys with a temperature string down the water column add a “Water temp by depth” profile — the closest thing to a free thermocline readout, and exactly what you want before committing rigger depths.

Every reading says when it was taken — “Observed 12 min ago” — and the depth profile is dated separately, because setting your spread off a days-old thermocline is precisely the mistake riggr won't let you make silently.

4. Catch pins — and your privacy

• Your own catches always show, at their exact spots — only to you.
• Other anglers' catches: public catches from the last 7 days, plus followers-only catches from anglers you follow, same window. Filter the layer to All / Mine / Others.
• Precision is the owner's choice. A catch logged with “Port” location sharing gets snapped to the nearest port before it ever leaves the server — the exact coordinates are never transmitted to anyone else.

5. The rest of the layer stack

• Ports — marina and launch directory, with your favorites.
• Waypoints — yours plus waypoints shared with you.
• Radar — live precipitation, for the squall line question.
• Sea marks — OpenSeaMap navigation aids.
• NOAA charts — electronic navigational charts (US waters).
• Live anglers — riggr users who've chosen to share live location.
• All Tracks (Premium) — your recorded trip routes as a history layer: where you actually caught them, season over season.

One layer has no toggle on purpose: known hazards like trap nets always draw, on every view. Safety marks don't belong behind a checkbox.