Widespread, Significant Severe Storms; Blistering Heat; Persistent Monsoon and Fire Weather Threats
A swath of severe weather is forecast from the Middle South to the Great Lakes. Very large hail, significant damaging winds, and tornadoes will be possible; especially; from northwestern Tennessee to southwestern Ohio. The south-central U.S. remains excessively hot, with Heat Indices over 110 degrees. Monsoon moisture continues threats of local flash floods, and dry thunderstorms in the west.
Hazardous Weather Conditions
Marine Zone Forecast
The Approximate Shoreward Edge of the Gulf Stream current, as of July 19th, 2018.
51 NM South of Dry Tortugas Light...on Loggerhead Key. 41 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 32 NM South of Sand Key Light...off Key West. 17 NM South of Looe Key...off Big Pine Key. 15 NM South of Sombrero Key Light...off Marathon. 11 NM Southeast of Alligator Reef Light...off Islamorada. 8 NM Southeast of Molasses Reef Light...off Key Largo. 3 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the Naval Oceanographic Office.