Station Name: TUOLUMNE R AB EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,493 feet / 760 meters

Nearest Address:
Preston Falls Trail
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.87936848, -119.947126

Nearby Water Temperatures

Winter Storm Watch issued November 10 at 11:56AM PST until November 14 at 4:00AM PST by NWS Sacramento CA

Effective: Mon November 10, 2025, 11:56 AM
Expires: Tue November 11, 2025, 4:00 PM

* WHAT...Heavy snow possible. Most likely total snow accumulations of 4 to 8 inches above 5000 feet with 1 to 2 feet above pass level. Southwest winds could gust as high as 50 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park above 5000 feet. * WHEN...From late Wednesday night through late Thursday night. * IMPACTS...Travel could be very difficult above 5000 feet. The hazardous conditions could impact the Thursday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Low confidence on exact timing and snow amounts. Check back frequently for updates on the forecast.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.

Winter Storm Watch issued November 11 at 8:31AM PST until November 14 at 4:00AM PST by NWS Hanford CA

Effective: Tue November 11, 2025, 8:31 AM
Expires: Tue November 11, 2025, 4:45 PM

* WHAT...Heavy snow possible. 6 to 12 inches of snow above 5,000 feet. Up to 2 feet at the higher elevations. Winds could gust as high as 40 mph. * WHERE...A portion of central California. * WHEN...From late Wednesday night through late Thursday night. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes.

Monitor the latest forecasts for updates on this situation. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.

Winter Weather Advisory issued November 11 at 12:13PM PST until November 14 at 4:00AM PST by NWS Sacramento CA

Effective: Tue November 11, 2025, 12:13 PM
Expires: Wed November 12, 2025, 4:00 PM

* WHAT...Moderate snow expected above 6500 feet. Total snow accumulations of 3 to 8 inches above 6500 feet with 1 to 2 feet at the highest peaks south of US Highway 50. Southwest winds gusting as high as 50 mph. * WHERE...West Slope Northern Sierra Nevada and Western Plumas County/Lassen Park above 6500 feet. * WHEN...From 1 AM Thursday to 4 AM PST Friday. * IMPACTS...Plan on slippery road conditions above 6500 feet. The hazardous conditions could impact the Thursday morning and evening commutes. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels initially above 8000 feet Wednesday evening through midday Thursday, then lowering to around 5500-6500 feet Thursday afternoon through Friday.

Check the latest road conditions from Caltrans online at quickmap.dot.ca.gov or dial 5 1 1.

Wind Advisory issued November 11 at 11:38AM PST until November 13 at 1:00PM PST by NWS Sacramento CA

Effective: Tue November 11, 2025, 11:38 AM
Expires: Wed November 12, 2025, 4:00 PM

* WHAT...Southerly winds 15 to 25 mph with gusts up to 35 to 50 mph expected. * WHERE...Carquinez Strait and Delta, Sacramento Valley, Northeast Foothills and Northern San Joaquin Valley * WHEN...From 10 PM Wednesday to 1 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Strongest winds expected Thursday morning.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.

Winter Storm Warning issued November 11 at 11:33AM PST until November 14 at 4:00AM PST by NWS Hanford CA

Effective: Tue November 11, 2025, 11:33 AM
Expires: Tue November 11, 2025, 7:45 PM

* WHAT...Heavy snow possible. 6 to 12 inches of snow above 6,000 feet. Up to 2 feet at the higher elevations. Winds could gust as high as 40 mph. * WHERE...A portion of central California. * WHEN...From 1 AM Thursday to 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult to impossible. The hazardous conditions could impact the Thursday morning and evening commutes.

If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead of you, and allow extra time to reach your destination. Avoid sudden braking or acceleration, and be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order.