Dangerous Cold Plunging through in the Central U.S.; Heavy Snow from the Central Plains to the Southern Mid-Atlantic

An Arctic air mass will continue to plunge south through the central U.S. this week with widespread, record-breaking cold likely. Sub-freezing temperatures are likely to reach as far south as the Gulf Coast. Heavy snow will move from the Rockies this morning across the central Plains and Ozarks, Tennessee Valley, and North Carolina into the southern Mid-Atlantic states through Wednesday. Read More >

Map of estimated Water Temperatures
List of Water Temperature observations (at bottom of page/list)

Latest Marine Discussion:

.MARINE... A large area of high pressure will descend into the north- central U.S. Since the high won't be directly overhead, west- northwest winds will only gradually diminish today, with northerly channeling expected tonight. Lighter winds are expected Wednesday. Locations along the bay could approach advisory criteria Wednesday night depending on the strength of low pressure to the south. Solid SCA to possible gales are anticipated Thursday into Friday. A Gale Watch was issued Thursday afternoon into Thursday night as a result. Strong northwest winds continue Friday. Small Craft Advisories are expected with gales possible. Winds gradually diminish Friday night but advisories likely continue. Lighter southwest winds are expected Saturday as high pressure moves overhead. Winds may become more westerly by Sunday. Update as of: 254 PM EST Tue Feb 18 2025