Severe Thunderstorm and Heavy Rain Threat Along the East Coast
Severe thunderstorms capable of widespread damaging winds and a few tornadoes will shift across the Mid-Atlantic and Southeast states today and tonight. Heavy rainfall and a risk of flash flooding is also present as tropical moisture streams north along the East Coast. The highest threat exists from the Carolinas into New England.
Hazardous Weather Conditions
Small Craft Advisory
High and low forecast temperature values represent air temperature.
Last Update: 10:15 am EDT Apr 19, 2019
Forecast Valid: 11am EDT Apr 19, 2019-6pm EDT Apr 25, 2019
The Approximate Shoreward Edge of the Gulf Stream as of April 18...
30 NM South of Dry Tortugas Light...on Loggerhead Key. 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 7 NM South of Sand Key Light...off Key West. 11 NM South of Looe Key...off Big Pine Key. 11 NM South of Sombrero Key Light...off Marathon. 4 NM Southeast of Alligator Reef Light...off Islamorada. 2 NM Southeast of Molasses Reef Light...off Key Largo. 2 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the Naval Oceanographic Office.
- This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
- The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.