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Selecting data icons on the map will display imagery below.


Plot Information:
There are several interactive layers on this page:
Hydrographs: This layer includes forecasts of California hydrographs that can be clicked to view the most recent and/or forecast data. These colored circles are shaded based on the maximum stage height expected over the duration of the forecast period provided by the River Forecast Center.

GFS IWV/IVT: This layer is a series of images of the Global Forecast System integrated water vapor (IWV) and integrated vapor transport (IVT) forecast for the 0-to-72-hr (additional periods will be added soon) period. The images are created in house from data provided by NCEP. Data are updated every 6 hours at 1 and 7 AM/PM.

3-d GFS Meteogram: This layer will produce a series of points on the map that are color coded based on the the maximum IVT expected over the next 3 days. Clicking these dots will open a 3-day meteogram (time series) of AR-related forecast information for that point. Data are updated every 6 hours.

7-d GFS Meteogram: This layer will produce a series of points on the map that are color coded based on the the maximum IVT expected over the next 7 days. Clicking these dots will open a 7-day meteogram (time series) of AR-related forecast information for that point. Data are updated every 6 hours.

7-d GEFS IVT Plume This layer will produce a series of points on the map that indicate locations where GFS ensemble IVT forecasts are available. Clicking on these locaitons will yield a forecast plume diagram for that point. Data are updated every 6 hours.