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Recent nor’easters bring high water, beach erosion

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   The tides have been quite high along the New Jersey coast in recent days, thanks to two nor'easters.

   And some beaches and dunes took a beating, according to a state Department of Environmental Protection report released today.

   My colleague, Jim McConville, quoted a meteorologist as saying that the water level at Sandy Hook on Sunday morning was the highest in more than 13 years.

   It exceeded 6.7 feet above mean lower low water (MLLW) during six consecutive high tides at Sandy Hook - enough to cause at least minor tidal flooding, according to federal information. MLLW is a measure of low water.

   It appears that the water level was high enough - at least 7.7 feet - to cause moderate flooding several times, according to federal data.

   Severe tidal flooding at Sandy Hook begins when the water level reaches 8.7 feet, according to a National Weather Service report.

   The highest levels - 10.1 feet - came during Hurricane Donna in 1960 and on Dec. 11, 1992, during a nor'easter.


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