
ALT Graphic showing water temperature impact thresholds. Water temperatures below 40 degrees: Extremely Dangerous, water temperatures 50 to 60 degrees: Very Dangerous, water temperatures 60 to 70 degrees: Dangerous, and with water temperatures below 77 degrees, breathing begins to become affected. Data courtesy of the National Center for Cold Water Safety.

ALT California Nevada Forecast Center Daily briefing. Graphic on left showers forecast precipitation amounts for Tuesday 5 am through Monday 5 am. Around 3-6 inches of precip over the Nrn CA Coast and Shasta Basin and along the Sierra and 1-2 inches along the Central and Srn CA coast and into Srn CA mtns and Sac Valley. The middle graphic shows Sierra Forecast precip amounts and Freezing levels for the Northern Sierra, Central and Southern Sierra with freezing levels dropping to around 2000 to 4000ft by Thursday. The graphic on the right shows the forecast river point status with 97 points normal and 5 points reaching action/ monitor stage.

ALT Graphic of the CNRFC Daily briefing with a plot of the forecast precip from 4 am today to 4 am Dec 21 showing precip over Srn Or, Nrn CA and portions of Central CA and Nrn NV with the highest amounts along the Nrn CA coast and Shasta Basin with 1-3 inches of precip. Plot of forecast precip amounts and freezing levels for the Northern, Central, and Southern Sierra. Freezing levels down to around 5000 ft in the Northern Sierra on Monday. River Forecast Point map showing 7 forecast points at or above action/monitor stage.






































