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Heavy downpours:

With tropical moisture streaming up the coast, heavy downpours at times are likely between Tuesday evening and Thursday morning on Long Island. The Euro is showing precipitable water values exceeding 2 inches late Tuesday night into mid-day Wednesday on Long Island, which is much above normal for this time of year, so it is a strong signal for heavy downpours.

This video shows precipitable water values from the 06Z Euro run from 8 AM tomorrow to 8 PM Wednesday.

The 2nd image shows the projected rainfall through 8 AM Friday from the Weather Prediction Center.

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