BALTIMORE (AP) — If you like to swim in the Chesapeake, but don't like being stung by jellyfish, a new high-tech bay buoy system can help.

The National Oceanic and Atmospheric Administration says the Chesapeake Bay Interpretive Buoy System can tell when conditions are right for jellyfish, also known as sea nettles. NOAA says sea nettles are found from Cape Cod to the Caribbean but abound in the Chesapeake.

NOAA says observations have found concentrations of jellyfish are normally found in water between 79 and 86 degrees and in a specific salinity range. The buoys are listed on an online map, which shows data for each buoy, including sea nettle probability.

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Online:

Chesapeake Bay Interpretive Buoy System — http://buoybay.noaa.gov/locations.html