Low water supply conditions that led to a series of warnings over the summer — including imploring customers not to water their lawns — have improved, causing the Suffolk County Water Authority to lift the alert Wednesday.

The authority, which serves more than 1 million residents, issued a Stage 1 water alert in late July, advising customers that high water use, little rain and hot temperatures had led to "dangerously low" water levels in some of its storage tanks.

Depleted levels in the tanks could cause lower water pressure, the authority said, possibly hindering firefighting efforts. Customers were asked to conserve water and avoid nonessential water use, such as car washing.

Initially there was little reduction in water use, and in August the SCWA issued a second warning , urgin

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