Three temperature records were set Sunday and Monday when the mercury went up and stayed there, causing people to seek activities to keep cool.

The sunny weather provided the opportunity for children to swim in the Winchuck at the bridge. The Chetco River at Loeb State Park and Second Bridge have traditionally provided swimming spots as well.

People also took to boats, but they were limited to the calm waters of the port or on the river as the ocean was choppy.

The choppy waters were caused by the North winds that created the warm temperatures, commonly known as the Chetco Effect. Air is compressed, causing it to warm up, as it is blown over the mountains. The compressed air over Brookings causes the air temperature to rise, but then it is dispersed over the ocean, causing rough seas.

Temperatures recorded at the U.S. Bureau of Reclamations automated site at the A.N. Roberts Lily Research Center reached 93 degrees on Sunday and hit 100 degrees on Monday, breaking records of 84 set in 1945 and 94 set in 1932.

Because of the warm temperatures, the thermometer only dropped to 77 degrees, breaking the old nighttime warm temperature for Sept. 18, which was 58 set in 1979.

The weather records show no nighttime temperatures ever recorded, making it a record warm night for any night since Oregon State University began keeping records in 1931.

The all-time warmest temperature in Brookings was 103 degrees set Sept. 9, 1973.

Meanwhile there were unofficial temperatures recorded Monday of 105 degrees at 3 p.m. at Family Security Banks thermometer. At 6 p.m. it had dropped to 102.

Temperatures from the National Weather Service were not available when this page had to go to press. For its official high and low temperatures, see Page 1A.

Tuesdays record high temperature was 98 degrees set in 1967. However, the forecast called for the mercury to reach 97.

The forecast is for increasing clouds with cooler temperatures. But a warm weekend is forecast.