Datum Conversions - Suffolk VA (NMDV2)
Flood Level	MLLW	MHHW	NAVD88
Zero MLLW	0.00	-3.50	-1.91
Action	5.00	1.50	3.09
Minor	5.50	2.00	3.59
Moderate	7.00	3.50	5.09
Major	8.00	4.50	6.09