The Outdoors · Statewide
Check NYHABS Before a Lake Day
The NYHABS map can show recent harmful algal bloom reports, but clear-looking local conditions still deserve attention.
Published June 23, 2026 · Last verified June 23, 2026
A lake can look perfect from the road and still deserve a quick water check. NYHABS gives you the statewide starting point before the towels, paddles, or dog leash come out.
DEC’s notification page points to an interactive map for known HAB reports. Current reports are shown for freshwater blooms reported through DEC’s system within the past two weeks, but DEC warns that other waterbodies may have blooms that have not been reported. So the practical move has two parts: check NYHABS before swimming, paddling, or bringing a dog to the shore, then look at the actual water.
Avoid visible blooms, scums, or strongly discolored water, and use official beach or local health notices for designated swimming areas. A clean map is helpful, not a promise. A good lake day is easier when NYHABS, DEC guidance, beach status, and what you see at the shoreline all get a vote.
That last part matters for ordinary families too. A dog that drinks at the edge, a child wading near a dock, or a kayak launch tucked in a quiet cove can meet different water than the open lake. The map helps, but the shoreline still gets the final look.