Heavy Rainfall in South Texas and Hawaii; Below Average Temperatures for Much of the East
Heavy rainfall is expected in extreme southern Texas and parts of the Hawaiian Islands into Monday. Flash-flood watches are effect for both areas. Temperatures from the Great Lakes to the southern Plains and through much of the eastern U.S. are expected to be below to well below average. Air stagnation concerns are likely across interior portions of the Northwest through Monday.
Hazardous Weather Conditions
High and low forecast temperature values represent air temperature.
Last Update: 6:03 am EDT Oct 21, 2018
Forecast Valid: 9am EDT Oct 21, 2018-6pm EDT Oct 27, 2018
Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
- 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.