As of today, past peak, season runs to ~June 30. Earth Exhibit tracks the live conditions and flags it the moment it is on.
Each spring and early summer, huge numbers of lake flies emerge along the shores of Lake Winnebago.
These are non-biting midges (Chironomus plumosus, family Chironomidae), not caddisflies.
The adults have no working mouthparts, do not bite, and live only a few days.
They hatch from the lake bed in vast synchronized broods, the largest usually in May, coating docks, walls, and shorelines after dusk.
Where to see it
A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.
| Viewing spots |
|---|
| Menominee Park (Oshkosh) Shoreline |
| Neenah/Menasha Waterfront (Lake Park area) |
| + 1 more spot, with exact coordinates and timing, in the app → |
This is the short version
This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.