<p>The National Weather Service issued a flash flood watch for northern and southern Nassau and northwestern and southwestern Suffolk counties through Monday evening.</p> 
<p>How did Sunday's rain affect you?</p>

The National Weather Service issued a flash flood watch for northern and southern Nassau and northwestern and southwestern Suffolk counties through Monday evening. How did Sunday's rain affect you?

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Poll: How did Sunday's rain affect you?

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<a href="https://www.newsday.com/video/newsdaytv-top-stories">Get more on these and other NewsdayTV stories</a>

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