Is Red Cove safe to swim?

As of July 19, 2026, Red Cove in Aleutians East County, Alaska carries a swim caution. Blue-green algae are not currently monitored at this water. No fecal-bacteria advisory is posted (state beach program). Rainfall over the past week totaled 2.4 in, which can wash bacteria and nutrients into the water.

How this read is built

Red Cove is a lake in Aleutians East County, Alaska. Blue-green algae are not currently monitored at this water.

Blue-green algae (cyanobacteria) blooms are most common from midsummer into early fall, when the water is warm, calm, and rich in nutrients from runoff. They can produce toxins that make people sick and can be rapidly fatal to dogs, so skip water that looks green, scummy, or like spilled paint, and keep children and pets out of it.

Is it safe to swim in Red Cove right now?

Red Cove carries a swim caution today. Blue-green algae are not currently monitored at this water. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.

Does Red Cove have blue-green algae (cyanobacteria)?

Blue-green algae are not currently monitored at Red Cove. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.

Can dogs swim in Red Cove?

No bloom is detected at Red Cove today, but dogs are much more vulnerable to blue-green algae than people, and blooms can form within hours. Always keep dogs away from water that looks green, scummy, or discolored, and rinse them off after swimming.

How many Alaska lakes and beaches have swim advisories today?

Today, 0 Alaska waters are under a swim advisory and 89 more warrant caution, out of 203 monitored waters SwimZone tracks in the state.

How is Red Cove's water quality measured?

SwimZone builds this read from EPA CyAN satellite imagery for blue-green algae, official beach and fecal-bacteria advisories where a program monitors Red Cove, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.