A multi-day, potentially historic heavy rainfall event may produce catastrophic and life-threatening flooding through Saturday from the Ozarks into the Ohio River Valley. Several clusters of strong to severe storms are expected from the Southern Plains, Mid Mississippi Valley to the Ohio/Tennessee Valleys and the Mid Atlantic. Read More >
NWS Telecommunications Gateway
National Program
Instructions for the proper application of level designator.
1. The designator specified in this table should be used to the greatest extent possible to indicate the levels below the ocean surface in the body of the GRIB bulletin for oceanographic products.
2. When the table does not contain a suitable designator for the level, a designator which is not assigned in the table should be used.
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US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
NWS Telecommunications Gateway
5830 University Research Ct.
College Park, MD 20740
(301)-683-1518
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