Heavy Rain and Mountain Snow For the West Coast; Lake Effect Snow in the Great Lakes
A series of Pacific storms will deliver multiple rounds of heavy rain and mountain snow Wednesday into the Thanksgiving holiday weekend. There is an elevated concern for flash flooding, mudslides and debris flows near wildfire burn scars in California. A weak storm system will cross the Great Lakes Wednesday with accumulating Lake Effect snow.
High and low forecast temperature values represent air temperature.
Last Update: 8:16 pm EST Nov 20, 2018
Forecast Valid: 9pm EST Nov 20, 2018-6pm EST Nov 27, 2018
The approximate location of the west wall of the Gulf Stream as of Nov 20, 2018 at 1200 UTC...
69 nautical miles east of Flagler Beach. 78 nautical miles east of Saint Augustine Beach. 82 nautical miles east of Jacksonville Beach. 94 nautical miles east southeast of St Simons Island.
This data 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.