Excessive Heat in the Interior West; Monsoon Conditions in the Southwest
Dangerous heat is expected to be in place across portions of California, especially the Central Valley, and across the Interior Northwest into Friday.
Heat Advisories will also be in place across the southern Plains into the Lower Mississippi River Valley. Monsoonal showers and thunderstorms may result in flash flooding and debris flows from the Four Corners region and Southwest through Friday.
High and low forecast temperature values represent air temperature.
Last Update: 7:50 am EDT Aug 16, 2022
Forecast Valid: 9am EDT Aug 16, 2022-6pm EDT Aug 22, 2022
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.